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High Performance DDR2 Memory Breaks 1.25GHz
TrackinYeti writes "Performance PC Memory manufacturer, Corsair recently released a new addition to their flagship Dominator line of
desktop memory,
the
TWIN2X2048-10000C5DF. This 2GB DDR2 memory kit features the company's
DHX Dual Path Heat Xchange cooling technology, support for Enhanced Performance
Profiles (EPP), it includes one of Corsair's Dominator active memory coolers,
and it's rated for operation at a currently industry leading 1.25GHz."
Lovely speed, but I wonder what all that heat output will do the ambient temperature.
"Performance $OBJECT manufacturer, $COMPANY recently released a new addition to their flagship $BRAND line of $OBJECT(s), the $MODELNUMBER. This $OBJECTDESCRIPTION features the company's $SUPERLONGFEATURENAME, support for $ANOTHERFEATURENAME ($ABBR), it includes one of $COMPANY's $OTHERPRODUCTHERE, and it's rated for operation at a currently industry leading $OWNAGESPEC."
Seriously, this sounds a lot like any other marketing gimmick ever invented. And it is just asking for a car analogy. Simply replace $COMPANY with Chevrolet, and start imagining the rest..!
Yeah, like giving it to me so I can spend it on hardware that will be outdated in 6 months.
It's sad when choosing an installation directory on your own qualifies you as an "advanced user."
If the smell is really strong it is probably some sort of infection which is causing there to be high levels of trimethylamine oxide which cause a fishy odor. Get her on a regimen of Flagyl to treat the infection.
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 is the magic number.
I can't find registered ECC DDR2 faster than 667 MHz. Why?
I was hoping my next machine would be a quad core with 800 MHz DDR2 and ECC.
Much as my current machine is PC3200 DDR with registered ECC. No sense throttling down the relative bandwidth per core.
[Please don't waste time trying to convince me I don't need ECC.
SGIs taught me otherwise and soft error rates really are on the rise. Just answer the question thanks.]
Also commonly known as plugging it in
Lose: misplace or fail || Loose: not bound together
Two questions?
1. How relevant is it to have memory that is this fast? As I understand it, no matter how fast memory is, if there isn't enough of it, your computer has to read and write from swap space on the hard drive, and even the fastest harddrive is at least a million times slower than slow memory, since it is a matter of nanoseconds vs. milliseconds (someone might correct me on the technicalities of this). So wouldn't lots of normal speed, or even slow memory, work better than too little ultra-fast memory? (Someone should just build a system that can support 8 gigs of 30 pin SiMMs!)
2. Am I a cranky old man who isn't up on this trend of memory needing active cooling? The closest I've seen is RAMBUS with aluminum sinks built in. It seems that no matter how efficient the cooling system claims to be, active cooling is another thing that can go wrong. I would much rather have slower memory that I don't have to worry about frying, then fast memory that is dependent on a fan that may break.
So, with those things in mind, how worthwhile is this?
Hopefully I didn't put any [] around my words.
The basic structure of Dynamic RAM has not changed, it still takes about 50nS for row precharge (Tras
and 20bS column reads. All they've done is speed up the interface logic. The memory cell access is no faster.
OK, so once you've opened a row, you can read that faster, but how many operating systems are
optimized to keep the data row aligned in the system memory? You have a data request that is outside
of the row you've opened, you have to close that row and open another, 120nS penalty.
At 1.0GHz, that's 120 clock cycles.
Starman97@Gmail.com (bring it on spammers)
and yeah, BFCs (big, fast caches) are far more important than fast main memory for the majority of applications. Nevertheless, these fast memories sell really well on the enthusiast market, where most people don't really know what a cache really is.
The Raven
This isn't a new DRAM chip. This is an ad from the fan and heatsink crowd.
No, he's saying that more memory is better than fast memory. He might not need 8GB, but it's likely that 8GB of RAM would improve system performance better than doubling the speed of the ram.
The whole assumption is that anyone needing that much performance will be butting up against disk read bottlenecks due to swap anyway.
My question to programmers is this, Swap may have made sense 30 years ago, when ram was like $8/byte and not much faster than disk anyway, but in 2007, ram is ubiquitous and MUCH faster than disk. Why do we even have swap anymore at all?
Can you be Even More Awesome?!
Yet another whiny fan to sieze up and die in six months.
How long before they put active heatsinks on mice?
It's probably dirty. To clean it, deflate her and wash with warm soapy water, then hang up to air dry.
High Performance DDR2
There's a High Performance Dance Dance Revolution 2?
...it makes it to easy for cats to catch them.
By default, it lets processes overcommit memory. That means you can malloc more than there actually is. This is done with the expectation that programs allocate extra memory they don't actually use. Problem is that an excessive allocation succeeds, but then the system can't satisfy it, so it has to kill some random process.
Do this: This will turn off overcommit completely. When some program tries to request too much, malloc simply fails. No random processes get killed. The program that tired to allocate the memory is given a chance to handle the failure, unlike what happens with the default setting.
The memory companies seem to be fighting the Ghz wars of yesteryear. They release these "performance" products that boast tighter timings and higher clocks, that don't translate into significant real-world performance gains because the bottlenecks usually lie elsewhere, like the northbridge or on-CPU memory controller. Corsair strikes me as a big marketing machine with just a few uber-hyped products. Truth is, in my experiences I've seen more Corsair memory cause problems than the generic stuff, mostly because they often employ weird timings that are misdetected or even unsupported by the motherboard. The fact is that their target market is a bunch of Red Bull chugging gamer types, that don't know squat and think 1% is significant. They remind me of a certain subclass of audiophiles, people who have been caught in the sticky web of disinformation that's out there... people who will fight you to the death over the quality of their hand-made oxygen-free triple-plated phase-aligned one-way audio cables.
I can tell you quite honestly that if I had to plunk down an extra 200$ on my PC, I'd get the cheap ram and bump the CPU up a few hundred MHz. Specially tuned memory is for specially tuned applications, you know, like a real-time zillion-core supercomputer!
-Billco, Fnarg.com