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DDR3 RAM Explained
Das Capitolin sends us to Benchmark Reviews for an in-depth feature on DDR3 memory that begins: "These are uncertain financial times we live in today, and the rise and fall of our economy has had [a] direct [effect] on consumer spending. It has already been one full year now that DDR3 has been patiently waiting for the enthusiast community to give it proper consideration, yet [its] success is still undermined by misconceptions and high price. Benchmark Reviews has been testing DDR3 more actively than anyone. ... Sadly, it might take an article like this to open the eyes of my fellow hardware enthusiast[s] and overclocker[s], because it seems like DDR3 is the technology nobody wants [badly] enough to learn about. Pity, because overclocking is what it's all about."
Great, now that I know how well certain DDR3 chips overclock, can I see how DDR3 compares to DDR2 in terms of raw performance and overclocking ability? I'm not an expert on how DDR2 works, so DDR3 could be better explained to me by showing me how it is better than DDR2.
DDR3 is still 5-10 times the cost of DDR2, and the performance gain is not big (maybe 10% at best) on overall system performance.
Lawyers, MBA's, RIAA? A jedi fears not these things!
Though DDR3 is nice and all with it being much faster, computer speed hits quite a few bottlenecks outside of the RAM speed.
1) Hard disk speed, until SSDs become very common this is one of the causes of decreased speed because a HD can only run so fast
2) The OS. Vista is much much slower then other versions of Windows and as it is the main OS (For now) the fact that it struggles on a 1.6 GHZ dual-core CPU and 1 GB of RAM, only begins to tell you the sluggishness of the OS. And until MS fails and Linux becomes the top OS or MS manages to create a decently fast OS, this will be a problem
3) Connection speed. Its becoming where the Internet is nearly as important as the computer itself. And if you are still on dial-up (and in many places in the US thats all the connection choices offered) even a supercomputer will struggle with sites such as YouTube.
Until those problems get fixed, faster RAM won't make a bit of difference to the end-user.
Taxation is legalized theft, no more, no less.
Memory bandwidth is not problem right now. I/O is too slow. We need faster disks and LANs first.
Actually, with the current technology, such as 900 MHZ CPUs, 1 gig of RAM and Linux, things are selling. I am referring to the eeePC along with the other UMPCs that are growing in use. The slowing US economy has made computer makers adapt to lower spending incomes or face lower sales. Other computers such as the gPC reflect this. Along with the growing use of Linux (which is free) helps make the computers cheaper so they sell better. MS has been failing lately due to Vista's high-priced hardware need, compare that to Linux which can run on a Pentium II or III. New technology doesn't sell well in this economy, cheap, older technology does.
Taxation is legalized theft, no more, no less.
An for wanabees. Real enthusiasts get hardware that performs without the risk of data corruption and untimely death. DDR2 is perfectly fine at the moment, especially as the impact of faster RAM is pretty small for most applications. Say up to 10% of the raw speed gain, if you are very, very lucky. That is not worth paying anything more for it, except in servers.
Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
Um, with overclocking utilities distro'd by nearly every motherboard manufacturer, anyone with a minimal ability to click the "auto overclock" button can up their system bus and get a few extra clocks.
Why pay for the highest clocked processor when you can get the exact same core(and performance) with the cheaper one?
If sharing a song makes you a pirate, what do I have to share to be a ninja?
... really careless[ly] written submission[s] that the editors [have] to fix [up] before they can be [read] by us[?]
Generally, bash is superior to python in those environments where python is not installed.
What is the one and only thing that has ever helped companies servive a depression?
Burning down the factory and collecting the insurance?
What?
It's always nice to see a tech writer full of teenage enthusiasm, but this article goes a little over the top.
It's supposed to be an article about a performance enhancement, and there's barely any performance values at all (except for the theoretical peak throughputs on page 3, and we know how much that means).
I think what the guy really wanted was to write about planes, not about computer hardware.
Because some value stability over speed.
Vista has sold 140,000,000 copies. Not what I would call a failure.
I was asked to purchase 4 of the fastest desktop PC's I could find (just less than a year ago) for a contract placement; I ended up going with the QX6850 and for 3 machines DDR2-800, and with the extra money on the 4th machine, going with a capable motherboard and DDR3-1333; hoping for at least some speed difference.
First of all, as the technology was brand new at the time, the motherboard, although capable of 1333mhz ram, it only detected it as 1066 (we double checked they sold us the right stuff), so we manually set the RAM in the BIOS to run at 1333.
After all the setup, on otherwise almost identically configured machines, we found absolutely 0 performance gain on the DDR3 machine over the other 3 DDR2-800 machines. Although one might argue that our applications we were using to test were not so memory intensive, the fact is it was a computationally intensive task that regularly accessed about 200-300mb of data from ram. I would think that even if everything would be pre-fetched into the 8MB CPU cache before it was used, we should at least see some small difference.
In the end, it seems that we spent an extra $800 for no noticeable performance gain.
Hardware hack, smart guy.
I think I'm being trolled.
"You can either have software quality or you can have pointer arithmetic, but you cannot have both at the same time."
Does that statistic include Windows Vista with an "XP downgrade license"?
"Between strong and weak, between rich and poor [...], it is freedom which oppresses and the law which sets free"
How many were individual sales vs forced bundles? Now compare the sale of OSX Leopard, boxed vs with new systems.
If you have a monopoly, every system sold will contain "vista" whether they downgrade it or not. Now, otoh, if you have numbers that showed that only 3% or 30% or 80% of vista users downgraded to XP, then I may give you that 140mil number has some significance.
I do... Open source graphics drivers, WLAN drivers, office software, games, email, web on my school laptop. FOSS-only is an ideal, don't assume that no-one can make it though.
Do away with our corrupt tax code. Support the Fair Tax
The problem with sales of DDR3 is probably down to the fact that most computers are being sold with versions of Vista 32. To really make a difference with faster SRAM would probably also mean having a larger amount of SRAM. But the problem is Vista 32 only addresses just under 4GB of SRAM. As many computers for the home market max out by being supplied with 4GB of SRAM as new, the computers are effectively un-upgradable unless a different operating system is used. This leaves an interesting situation:- 1. Run Vista 64 - but then a large portion of hardware and software will not work as you cannot sign unapproved drivers. 2. Run Linux 3. Buy a MAC And there is the problem, the alternatives to using DDR3 are in fact called using a different operating system and adding standard DDR2 memory, which is more cost effective that paying the extra for the DDR3 SRAM. The only area I could possibly see DDR3 technology in the commercial hardware is in cutting edge graphics cards, where performance is everything. Unfortunately, as Vista 32 is already at is technology limit and that many potential users of this technology will baulk at the price, I can see games console manufacturers adopting this technology before the general PC market.
You're still lacking the source for
* BIOS
* BMC
* WLAN Card
* Disk Controllers
etc. pp.
Or, looking from a different perspective, he only has 28 comments to reach 17777. That's one less than 20000 man!
While there's some of that, there's also the fact that the silicon itself wasn't fabricated at a certain speed. Once cut up, it's evaluated for the speed. If the silicon was capable of performing at higher speeds, but the market is only paying for lower ones, guess what do the cpu makers do?
Yes, mark it at a lower speed, and sell it as such.
Why do you think they "lock" things?
Services.
NBC was the dominant radio network in the thirties, so big that it had two AM and one shortwave feed. You might not be able to afford a concert ticket, but big band jazz and the NBC Symphony Orchestra broadcasts were free.
The movie studios had a rough time of it until they hit on the formulas that would draw audiences to a cheap - air-conditioned - respite from the stresses of home and work.
I wouldn't call it a success, either. I'd wager that figure is 90%+ copies that came with new PCs. The large majority of which probably end up in a corporate setting where it was re-imaged with XP Pro (happens all the time where I work and for our clients).
Uh, Mr Balmer, phone for you sir. It's the ghost of ME-past, sir. It says the ghost of Vista-present has been trying to get hold of you, something about news on the ghost of Windows-future...
Seven Days with Ubuntu Unity
I don't understand why your average person would need more than 4GB of ram for a desktop computer anyways. What could you possibly run that would take up that much ram? Are you going to be using Pro Tools and Photoshop and Final Cut Pro all at once, as well as ripping a DVD and playing Duke Nukem Forever? Then maybe you'll need 8GB of ram, but other than that I don't see how it's necessary and I don't see any major advantage to DDR3.
The main limitation these days is not ram speed or size, or even processors, as the quad cores offer more than enough horsepower for most people, even professionals. These hard drives are what's slowing us down. Once we can switch over to a flash drive that can load data much faster than they can today and are relatively cheap, we'll be set.
As U/I=R => I = U / R and U * I = P, we get that U * U / R = P. The power consumption is NOT linear with the voltage but square. So if you lower U by 17% then P gets lower by 21%.
I run large electromagnetic finite element problems on a machine with 16GB of DDR2 with two Xeon Dual Cores at 2.66 GHz on XP64. One job takes about four days. I can run two in parallel before memory gives out. If my firm had $20K available I'd get a machine with 64GB of DDR3 at "1600 MHz" and dual quad-core at 3.2GHz. I could run larger jobs or more in parallel and they might take only three days - two iterations per week.
He's like a jet engine supporter immediately after World War II:
"Jet engines are inherrently capable of much greater speeds than propeller engines!"
"OK, so show me one that goes much faster than the prop driven spitfire?"
"Well, uh, there's the Gloster Meteor!"
"It does about 500mph*, right? That's not bad compared to the Spitfire XIX's 460mph. But there are tons of Spitfires out there, available cheaply vs. paying several times the cost for the Meteor for about a 10% speed improvement." *note: F-3 variant, not the "overclocked" tweaked versions that set speed records.
"Well, but the point isn't that it's better today. It's a better technology! It'll be better in the future! Props will never go supersonic. Jets can potentially go several times supersonic."
"That is cool. Doesn't really help me today though, does it? I'm still paying several times the cost for a small improvement, today."
"Yeah, but if you don't buy jets now, how will their prices ever come down? How will we ever reach the heady perfection they're capable of?"
"Again, not helping me today, is it?"
"But! But! It's really cool!"
Yes, the technology shows promise. But its future promise with only small increases today doesn't justify its current high cost.
If more people bought it, the cost would come down over time and more investment would mean unlocking more of that promise. Which is great in the future but gives you very little today in exchange for that high cost.
The argument he seems to be making is that everyone should adopt it right now, not because it actually gets them much for their money but because their investment will enable him to buy even faster stuff for a lower price later.
Not really compelling.
Tell me I'm not the only person who saw that and thought Dance Dance Revolution had some kind of new RAM feature. Go on, tell me!
How many copies of that were sold to OEMs? I assume most of them were. How many were wiped and put XP or Linux on? Chances are a good amount. Vista is a failure in perception too, ask the general person what they think of Vista and even those who just get on the computer to check their e-mail find that Vista is noticeably slower then XP, if you ask how many people would rather have XP, I am sure that the number would be very high. If any other OS replaced Vista in the OEM sector you could say that they have "sold" 140,000,000 copies, no matter how good/bad the OS is. Vista may sell well, but thats just because its what most computers have by default, it still is a failure for MS because people don't like it.
Taxation is legalized theft, no more, no less.
I haven't bought in to DDR3 yet for one simple reason...I was an early adopter of RDRAM, and look where that went.
I want a new quote. One that won't spill. One that don't cost too much. Or come in a pill.
I dont know what retard modded you insightful. Anyone with even the slightest understanding of overclocking knows that you don't overclock to the point of instability.
Way to go Moderators.
"One particularly important new change introduced with DDR3 is in the improved prefetch buffer: up from DDR2's four bits to an astounding eight bits per cycle. This translates to a full 100% increase in the prefetch payload" *If I remember correctly*, the reason the "prefetch" is increased is because the internal clock speed is still slow.. eg. dram running at 1000mhz internal/external with 4bit prefetch would have the same bandiwdth as dram running with 500mhz/1000mhz internal/external and 8bit prefetch. because it easier to make the internal clock run slower but have more "prefetch" and let the bus run at high speed. it's hard to get a chip to run at 1.6ghz but it's easy to have the chip run 400mhz with a 1.6ghz bus. this would add latency because all internal calculations are going the same speed, but the data transfered is now higher. bus speed needs to increase in mhz or width to make it go faster. trying to add width sux because you now need more traces on the mobo, and no one needs a 500pin ddr3. more than likely, ram will keep increasing in "mhz" of the fsb to keep up with bandwidth needs, but latency will keep increasing as "prefetch" is constantly increased to keep internal bandwidth symetrical with the fsb. this author doesn't talk about anything like this and i think he gives a very biased view on ddr3 vs ddr2. I do think power efficiency is a good point he makes though.
I think overclocking is silly, however it has side benefits - the ultra-quiet PC I'm using uses much the same tech, mostly noctua and zalman kit. You don't realise quite how annoying the whine of a typical PC is until you've used one without it. :-)
I have a passively-cooled PSU and video card, and two 120mm fans running nearly silently at minimum speed, and still I overclocked my Core 2 Duo nearly 50% just for the heck of it.
It's not all about fans roaring like jet engines or ridiculously intricate water-cooling systems.
This is the legacy of the Pentium 4/Prescott era - people got fed up with ridiculously hot and noisy systems, so 3rd party heatsinks improved greatly (heatpipes, easier to install) while Intel scrapped Netburst in favour of more efficient processors.
Well, it was bound to happen sooner or later.
Aide-toi, le Ciel t'aidera - Jeanne D'Arc.
I really like ECC memory. I've built a lot of machines here and there for various purposes and people and can safely say that ECC should be mandated. People oft talk of blue screens, panics, etc. A lot of these are due to bad memory. And these types of errors can often be hard to replicate. I believe EETimes had an article about how bad bad memory is.
Anyhow, I'm on a 975X chipset with 4GB of DDR2 800 MHZ unbuffered ECC memory machine now. Not a single unforced error since I bought this machine and assembled it December, 2006. Nothing. This unit is primarily a gaming rig, the 3DMark 2006 score is 11500 with an 8800GTX, all with ECC memory.
The most irritating thing for me is, looking at the great new CPUs available, is the utter lack of any unbuffered ECC memory in the DDR3 range. This to me is unacceptable. I refuse to compromise so I will wait. Intel has a motherboard featuring DDR2 800 fully buffered memory for the 'high end workstation' , D5400XS, this is $600+. Supermicro offers something similar.
The X38 does DDR2 ECC, and for whatever reason the X48 took that away. I don't get why Intel wants to deny us DDR3 unbuffered ECC? Its really a selling point, a very good thing. If you overclock, its nice to have because it can tell you the limits minus the guesswork, not that I would bother with OC personally.
Fundamentally, without ECC, do you even know if the memory works at all? My experience leads me to believe that without ECC present, the answer is no at all.
Legalize the constitution. Think for yourself question authority.
This article seems to be paid advertising, with some bending of the facts.
And the fact is that the double prefetch buffer is the sole reason for the double bandwith and the double latency. As a matter of fact the speed of the individual memory chips on the ram module are the same as on ddr2 (see that table in the article, just divide the ddr3 clock by 2 to get the corresponding ddr2 speed) - but instead of reading 1 bit from 4 chips at once into the prefetch buffer (that is four bit prefetch buffer), they are reading from eight at once (so that's the 8 bit prefetch buffer), so double the amount of data can be read in the same time (hence the double bandwidth). However because the memory chips are the same speed as in ddr2, the time needed to program the individual chips stays the same - so because the clock is double the speed, it takes twice as many clocks to tell the individual chips which bit we want to fetch. And that bullshit about lower latencies is also not quite right: ddr3-1600 cl6 is the same latency as ddr2-800 cl3 - and such modules have been sold for years.
Of course ddr3 is better, because it has higher bandwidth, and absolute latency is not worse than ddr2's. Also there are in deed technological advances (e.g. the lower voltage). But this article is still not exactly honest.
I run memtest for a minimum of 48 hours on any new system I build and have never had any problem with RAM that has passed that. This is the best I can do without the premium of paying for ECC capable motherboards and RAM.
And how do you prove stability of an overclocked part?
Not entirely. Google open source BIOS. Some real progress has been made in the last few years.
Have a look here: http://www.coreboot.org/Supported_Motherboards
Pain is merely failure leaving the body
And conversely; a reasonable number fail. Working as a system builder and memtesting every machine I build, I've seen around 15% failure rate in all brands of RAM.
[clever sig]
You run it at 100% load for hours on end. For example, Prime95 overnight for CPU overclocking. If the computer hangs, it's not stable enough so you lower the clocks.
Pretty easy, really.
I might just take that bet.
The OEM system install has been the norm in the home and SOHO markets for thirty years. The bare bones PC is for the enthusiast or the IT pro.
I am not convinced that consumer sales of Vista can be so easily ignored.
Operating System Market Share {April 2008]
These web-based stats show Vista with 15% market share. There is simply no good reason to suppose that a system running any other OS would claim to be running Vista.
Changing the user agent is a Geek thing.
I strongly suspect that any general-interest website [like CNN] would show pretty much the same numbers.
Did the customers actually want vista, or was it forced upon them by their choice of computer?
A better metric would be to see how many copies of vista sell with XP sitting next to it, both available equally.
Otherwise, it's like saying that 99.999% of people prefer to breathe oxygen - like there's a choice.
Yeah this is dead on, you can still get stable performance
out of Q6600 clocked to 3.4 ghz, and it will go to 3.6 ghz,
but it is branded for just 2.4 ghz.
The new 45 nm cores supposedly go a little faster even.
You also get to up your bus speed, and other things as well
if you cards can handle it.
It takes some tweaking if your flying blind, but reading
some hardware sites you can just back it off a notch from
their best and it works fine.
google "32 trillion offshore needs IRS attention"
So tell me does Prime95 exercise the various SSE and related units? What about the virtualization sections of the chip? Or all the instructions that Prime95 doesn't execute? Don't bother looking it up - I can already tell you it doesn't.
And the Internal Revenue Service has received "donations" from 200+ million Americans and thousands of businesses. What it is selling must be amazing.
Just because the copies went out the door, does not mean everyone asked to buy them.
Build a good load balanced web cluster some time. It's easy to saturate a GbE connection to the back-end storage boxes.
Well, Ive got an AMD x2 brisbane at 2788mhz thats got let see... 622 hours uptime. Of course, thats because I dropped an ATI HD3870 in it few weeks ago. Otherwise It would be higher.
Oh, might also mention for you other doubters, Im running a nearly silent zalman cpu cooler. The only thing you hear in the case is the pair of seagate hard disks.
Ive been gaming, capturing audio(I record my own music), encoding video and audio, watching movies, downloading things.. If that's not stable enough for you, you have problems.
If sharing a song makes you a pirate, what do I have to share to be a ninja?
Why be so condescending? I answered without malice.
Yes, of course it won't exercise the entire chip. No typical program does, so that wouldn't even be representative of what would happen. All that matters is that it's stable when you're using it under full load, and it so happens that the program serves as a reasonable estimation of that.
You could just as easily use a game like Crysis or whatever you please, since that would directly represent its stability in a certain situation. Prime95 was an example of the simple principle: see if it works.
the insurance companies went broke too so not really. Yes, I do pick apart jokes in a completely serious manner lol.
Google's Super Secret Search Algorithm: SELECT @search_results FROM internet WHERE @search_results = 'good'
Yet somehow millions of non-ECC machines give the impression that they're working on a daily basis.
Hey, look! It's Bono's brother.
I have yet to have a customer offer a contract for a full ECC system, but I expect that type of customer to be ordering in the dozens or hundreds. For one machine or 100 I would still give 48 hours of memtest. For ECC I would still give 48 hours of memtest.
If you can recommend a better test, I am open to suggestions.
The thing is it could still be unstable, but maybe it would only crash once a week now. With overclocking, every time the computer acts up you can never be sure if it's the overclock or not, and if it acts up less than once per week the tweaking process (which is usually a trial and error type of thing) could literally take months. I find it's just easier not to overclock it. Though for this computer it was an easy choice - even a modest bump of the FSB of 2% resulted in a PC that wouldn't even boot.
DDR3 is worthless anyways. I've only seen about a 5% or so increase in performance in various tests (Gaming, video editing, loading huge photographs,) not much to justify the extra 50% increase in price.
Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
Failures at build never see the customer. One would hope that hardware failing build has at least enough warranty to recover failed parts from supplier/manufacturer. If not, how can you provide any warranty to your customer?
When Nehalem comes out, with its new socket, motherboard manufacturers are likely going to mandate the switch to DDR3. Right now, it's pretty easy for motherboard manufacturers to push hybrid solutions or redirect consumers to DDR2 1066MHz (which is equally useless unless you're OCing something like a Wolfdale). They won't have that excuse in the new motherboards and I seriously doubt they will stick with DDR2, especially if prices come down by then.
But still, did those Vista-customers choose Vista or was it chosen for them by whoever sold them the computer?
Vista is a bundle success (they've succeeded in bundling it with a lot of systems), not a sales success.
It would be interesting to know how many Vista-licenses that's been chosen when there's been XP as an alternative.
Today I hear a lot of "I bought a new machine and it came with Vista. Can you help me get rid of it?".
Fortunately we have a license that allows our personnel to use our site XP-license at home, so they aren't forced to go pirate to get rid of Vista.
Many people who get Vista would have to try and buy an XP license because they don't know how to get, burn and install a pirate XP...
/.Mattsson - My native language is not English, so please don't whine over linguistic errors. (That's lame anyway...)
Wow, the first thing I thought of was that it would be the most useful degree you could choose nowadays, and that even an undergraduate degree would immediately pay for itself in corporate America.
Failures at build never see the customer. One would hope that hardware failing build has at least enough warranty to recover failed parts from supplier/manufacturer. If not, how can you provide any warranty to your customer?
Yeah, that's true. I wasn't arguing with your comment, merely commenting that a reasonable number of modules fail when first tested. Not maintaining machines I've had no experience to comment on ongoing failures.[clever sig]
Running memtest is of course a good idea, but with ECC you can (assuming you have software support) know about errors during normal operation. I've had two on my desktop in the last 30 days. (975X chipset, 4GB DDR2 667MHz memory.) (This is infrequent enough that it would usually pass memtest for your 48 hours (and has). (Memtest stresses the memory more, but still.))
When I was building my latest system, several months back, I initially wanted to go with DDR3. Money wasn't an inhibiting factor for me. But, I ended up going with DDR2 anyway. Here's why:
I couldn't find DDR3 memory confirmed to work with the motherboard I wanted!
There are so many stories in the reviews sections of NewEgg and other sites with people complaining that boards like the Asus Maximus fail to work with many and various brands of DDR3 memory.
The only brands I could confirm to work, were "out of stock" at every online shop I could find (apparently everyone was doing the same research and wanted their systems to actually work).
Short suppy, high price, spotty compatibility. This led me to decide to just build a system with double the memory @1066, instead of going for 1600 or 1800. Hopefully DDR3 will mature before I want to build another.
I run memtest for a minimum of 48 hours on any new system I build and have never had any problem with RAM that has passed that. This is the best I can do without the premium of paying for ECC capable motherboards and RAM.
Memtest86 (and Memtest86+) do not do a good job of finding RAM that is borderline working. They are only able to find RAM that is definitely not working. By "borderline", I'm talking about systems that fail under moderate to heavy load in random fashion (usually bluescreens or random application crashes). Or instances where things like QuickPar will fail to create or verify PAR2 sets.
By far, the best way that I've found over the years to truly stress test a system and verify that it will work correctly is a combination of Prime95 in torture-test mode and running some sort of heavy disk activity test. Prime95 exercises *both* the CPU and RAM at the same time, which is an excellent way of uncovering timing issues (i.e. CAS 2.5 RAM sold as CAS 2.0).
If your system can survive Prime95 + running the disks non-stop + running the video-card non-stop for 72 hours, then you are mostly home free.
Wolde you bothe eate your cake, and have your cake?
"...overclocking is what it's all about..."
While I understand it might be your particular hobby, it's not the case for most others.
I used to upgrade my computers every 3 years, which would roughly give me a 3x improvement in raw processing power (not to mention video, etc.).
IBM AT, 486-33DX, P-90, (AMD)P300, (AMD)P1.2GHz, P4 2.7 GHz.
That last one is something like 4-5 years old now (I forget) and it's only reaching the end of it's value as a cutting-edge game machine. I haven't found a lot of persuasive evidence that I need to upgrade, except now that Age of Conan is coming out, as well as some shooters I'm looking forward to.
So no, I don't see much of a compelling argument to upgrade hardware recently at all, much less push the envelope trying to overclock for that 4% performance gain.
-Styopa
SRAM = STATIC Random Access Memory SDRAM = Synchronous DYNAMIC Random Access Memory DRAM is basically a capactior, SRAM is a latch. Two different memory technologies. I believe a CPU cache is typically SRAM.
As so many people have said, the price premium over ddr ram and the lack of a performance enhancement makes DDR3 not be appealing to most people. I can enhance my computer much more cheaply by stuffing more ram in it, getting a faster processor, or getting a faster hard drive. I might even spring for a better monitor before I spend the extra money on a 5% performance increase. And in a lot of cases, because of the slower latency, DDR3 can be slower than DDR2 ram.
Because I asked for proof and you failed to provide it. I mean Crysis for a test? This is /. not digg.
It's amazing. Power = Current * Voltage. Lower voltage with proportionately higher current = equal power consumption.
When this "Eye opening, educational explanation" starts with such gibberish. If the only change in the memory was to shorten the distance between high and low, and all other issues such as resistance (or inductance since it practically an AC circuit) remained the same, then the power consumption would obviously be lower. But since the technology does in fact increase specifications of nearly everything, I'd imagine that the current drain would generally be at least proportionally higher.
Also it just seems more than a little childish for the author to focus so heavily on overclocking and then talk about power in terms of savings as opposed to focussing on the fact that lower voltage means shorter distances between gate threshold levels, therefore allowing higher performance of gate switching over equal capacitance circuits.
LAME!!!!
Also check out the specification update for the X38 chipset page 8.