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Intel Core 2 Extreme QX6700 Quad-Core Benchmarks
Slimpickin writes "Intel gave access to quad-core Kentsfield-based systems to select members of the press at IDF. The embargo has been lifted on a preview of performance numbers with the new 2.66GHz Core 2 Extreme QX6700 processor. HotHardware showcases Intel quad-core performance from a few different angles, from digital video processing and encoding, to 3D modeling and rendering, along with a few of the more standard benchmarks. the new Intel quad-core puts up performance numbers, depending on the application, at nearly double the performance of a 2.93GHz Core 2 Duo processor based system. Core 2 Quad will also drop right into existing motherboards that are compatible with the Core 2 processor line."
A few weeks ago Anandtech already tried to plug two 2.4 GHz Quad-Core Clovertons (Xeons) samples into the new Mac Pro featuring two LGA-771 sockets. Worked like a charm, a nice eight core machine. And since dual socket motherboards are quite expensive, the Mac Pro might even be a cheap version.
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No surprises, about 80% more speed for multithreaded programs.
Why did everyone told me to rush on Core2 Duo when it got released saying it's the perfect time buying CPU..... now quad core get released a few months after.
I know on the face of it this chip is a kludge (two dual-cores connected to one FSB in a single-socket package, as opposed to AMD's forthcoming 'true' quad-core CPU), but if it performs well, so what?
I'd hate to use a quad core system on just 2gb RAM - that's an average of 512mb for use per core.
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Not to be a spoilsport, but if you do drop in a couple of clovertowns, you'll void your warranty. I've had a lot of Mac-owner friends tell me it's a bad idea.
Me, I might try it anyway, but if I do, I definitely won't shell out $249 for an AppleCare warranty I'll be voiding soon after purchase.
Start a happiness pandemic
You keep using that word. I do not think it means what you think it means.
For years, most operating systems have been designed for 2-4 processors, with some handling more, and others doing better with less (I'm sorry, FreeBSD fans, I use it myself, but let's be honest, SMP was horrible until 5-REL, and it still isn't up there with Linux and *ugh* Microsoft).
With 4 core out this year, and 80 cores out in 5 years, it's time to rethink multiprocessor operating systems. There needs to be a significant change in the locking and threading metaphors, because 4 and 8 way will be obsolete by this time next year.
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Did anyone else notice that the 2nd graph on page 3 and the graphs on page 4 don't match the results under them.
The graphs show the Dual Core out-performing the Quad, but the descriptions indicate how much faster the Quad is.
Sigh.. oh well. Moving on..
I seem to remember a particular article in which everyone seemed to decry the chip before it came out, citing "wait for the independant reviews". True, do that, but this time maybe people will think of Intel with a little more credibility? But then again, this is slashdot!
And Sun is great for servers, engineers, and high end graphic designers / 3D rendering labs / etc.
As long as you don't mean to suggest it for an office or home use, unless you can also suggest a meaningful Windows / Office / Exchange replacement that won't require retraining a few million people.
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Any chance one would fit in an iMac or a Mac Mini?
Ooh, a sarcasm detector. Oh, that's a real useful invention.
Currently the only game in the near future that will take advantage of multithreading is Crysis, shortly followed thereafter by HL2:EP2. In the case of Crysis, lead designer Cevat Yerli is quoted as saying that they are "scaling the individual modules, like animation, physics and parts of the graphics with the cpu, depending how many threads the hardware has to offer" (incrysis.com). But he has also stated that the game will get a 10-15% boost per thread in a 64bit environment compared to 32bit. If this is true, then what are the implications on performance when operated in AMD's upcoming 4x4 processer?
The AMD 4x4 is pure 64bit, so does this mean that when compared to Kentsfield, a quad 32bit processor, Crysis would behave 40-60% (4x10% or 4x15%) faster?
Speaking of thread happy OS's, how about good ol' BeOS? It was designed from the ground up to be run with multiple processors and the more the better.
Should dig that one back up und update the old batmobile.
If I add more cores, it's so I can simulate bigger neural networks in close to real time. Depending on my level-of-detail, 10,000 neurons take anywhere from 250-750 MB. In order to run 100,000 neurons I need dozens of CPUs (currently done via Beowulf clusters), and each CPU needs a lot of RAM. (Up to about 100k neurons, synapses scale roughly as n^2, not n - at least in our model of the hippocampus.)
Ben Hocking
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It's always advisable to run similar processors on dual-proc motherboards. It's immediately obvious why this is necessary for speed. But, is this rule of thumb true for the number of cores? Say I wanted to cheap out, buying a dual socket board and a Core Duo now, and then as the quad-core Core processors, drop one into the remaining slot? 6 cores?
2.66GHz Core 2 Extreme QX6700??
So now, now only have they gone back to pointing out the clock speed, they add the NVidia product name at the end? Surely there's got to be a simpler way to do this, without even taking into account AMD. I mean you have:
- Dual Processor Pentium
- Dual Core Pentium D
- Core 2 Solo
- Core 2 Duo
- Core 2 Quad
- Dual Processor Core 2 Quad
Seriously, that's some major word jumble and you haven't even specified anything like clock speed (I know it's not all about clock speed, but uniform naming to differentiate would help).
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You don't void your warranty for upgrading a Mac or any other computer. Your "friends" are wrong about this, at least in the US, because it would violate the Magnuson-Moss Warranty Act.
The only way you void your warranty is if in upgrading your computer, you damage it or the parts you add damage the computer. Any damage you do is not covered, but anything else should still be covered.
No. There probably won't be a quad core chip that will go in an existing iMac or Mac mini because the sockets are different, and future quad core notebook CPUs will use a different socket for faster FSB.
There's one addendum I should make - Apple's warranty won't cover the parts that weren't bought through Apple.
But what I'm really saying is that you don't automatically void your warranty if you upgrade your computer.
Is if you need to replace them in pairs in a dual socket machine. I am about to purchase a MacPro and wonder if down the line, cost being the prohibitive part of the plan, if I could just upgrade one of the processors and then have 6 cores instead of 4. I use Digital Performer, and the more cores the better :)
He said freebsd isn't as good as linux and windows. He's wrong, freebsd is just as good as linux and windows, and none of the above are as good as solaris, but none the less, he said nothing bad about windows at all.
The Core series chips has the same problem I have with just about every CPU from AMD or Intel. No good motherboards. It seems you cant get a motherboard with basic features such as 133mhz PCI-X and without such crap as onboard audio and RAID without going to the Xeon or Opteron lines.
"Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
The only way you void your warranty is if in upgrading your computer, you damage it or the parts you add damage the computer. Any damage you do is not covered, but anything else should still be covered.
And so the warranter will declare the damage was caused by the non-factory parts you added and not investigate further.
What I want to know is if the two firmware updates Apple pushed to fix Boot Camp problems also blocked this type of upgrade, like they did to the Blue & White G3s to prevent their easy upgrade to a G4.
Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
Has it been 18 months already? Or are cpu's following the trends of storage?
I want to be retired when I grow up.
We did a lot of analysis on the speedup conferred by parallelizing our code. Interestingly enough, for a long while it was actually super-linear! I.e., quadrupling the number of CPU's cut the time to less than 1/4th of the original time. This was explained by the effects of having a larger total cache size.
Nevertheless, sure, many applications will not benefit from parallelization as much as ours. Neural networks are naturally parallelizable.
Ben Hocking
Need a professional organizer?
What the hell is with this Core2 Quad crap? It should be Core2 and Core4. You would have thought Intel would have learned from the nightmare Sun/Java went through with the whole "Java2 1.4" branding nightmare. Sun finally wized up and started calling everything Java 4, Java 5, and Java 6. Why would Intel start such a fiasco?
I get that they are trying to say "Hey look, it is a totally different architecture!" But calling it Core2 isn't going to do that. People will just end up calling them Dual Core or Quad Core anyways, not Dual Core2 and Quad Core2. It's just going to detract from their branding, not help it.
"Doubt your doubts and believe your beliefs." -- Switchfoot, Ode to Chin
DIdn't Jobs update the Mac mini line with Core 2 Duos? If so, than new minis would be compatible with Kentsfield.
Why is it that nobody seems to benchmark these chips in 64-bit mode? All the benchmarks seem to be 32-bit only.
This post is encrypted twice with ROT-13. Documenting or attempting to crack this encryption is illegal.
You don't void your warranty for upgrading a Mac or any other computer. Your "friends" are wrong about this, at least in the US, because it would violate the Magnuson-Moss Warranty Act.
My interpretation of Magnuson-Moss is that it prohibits bundling, like say, Apple requiring you purchase Apple-branded CPU's to upgrade. Pulling out your own CPU is probably still a warranty killer. They just can't automatically call it void if the problem is obviously unrelated and a defect in the merchandise, like oh, the paint starts yellowing after you open it up (that's about the only thing I can think of that's TOTALLY implausible to connect to a cause of opening up the case).
However, I bet you anything Apple's warranty says Limited Warranty. At that point they're largely off the hook. State laws may still apply.
Done with slashdot, done with nerds, getting a life.
No. The Mac mini uses Core Duo. Only the iMac currently uses Core 2 Duo.
But yeah, it's got to be one of the stupidest naming schemes from a major vendor of anything that I've seen in a long time. I was looking forward to a Pentium V. Sure it would have seemed a bit redundant, but so is the Core 2 Duo chip that's in the new laptop I've been eyeing...
It will be interesting to see how long it takes Apple to ship 8-core machines (or in intel speak, twin core 2 quad machines... what were they thinking?). Steve Jobs drives a hard bargain, and I wouldn't mind betting that in return for handing Intel his 8% of the computer market, and ruling out AMD chis for the forseeable future, he extracted something pretty special from Intel. I wonder if Apple has 'first dibs' on these, especially given that OSX's multithreading might well be more flattering to the chips than Windows.
A pizza of radius z and thickness a has a volume of pi z z a
Steve Jobs drives a hard bargain, and I wouldn't mind betting that in return for handing Intel his 8% of the computer market ...
... especially given that OSX's multithreading might well be more flattering to the chips than Windows.
8%? Bwahahahahahahaha!!!!!!
OSX? Good multithreading?? LOLOLOLOL!!!!! With crufty Mach underneath, it's easily the worst of all the "PC" operating systems (Win, Linux, BSD, etc).
Seriously, you're giving me a headache from laughing so hard.
Swapping one component for another component that is designed to be a replacement for it cannot violate a warranty. It's just like replacing Apple's SATA drive with one from Best Buy. Now, if you damage the computer in any way during the upgrade process, you're SOL.
Give a man fire, and you warm him for the night. Set a man on fire, and you warm him for the rest of his life.
The iMac and Mac mini use the mobile variant of Intel's processors. They are not compatible with the desktop processors.
Although the mobile Core 2 Duo and the desktop Core 2 Duo are identical in most ways, the do not use the same socket.
Give a man fire, and you warm him for the night. Set a man on fire, and you warm him for the rest of his life.
The mini uses the Yonah chip, with a notebook chip socket. It will work with early Merom chips. There will be no Kentsfield counterpart that uses that socket.
If you replace the processors in a Mac Pro with quad-core ones, what do you do with the old processors? It seems wasteful just to sell them as secondhand on Ebay, shouldn't Apple buy them back or something?
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That would be nice moment for GNU/HURD to start World Domination.
Does this mean that Core2Duo is the new "Celeron" compared to Core2Quad "Pentium"?
The CPU will clock at 2.66GHz with a 1066MHz effective FSB
I'm sure earlier articles were saying it would have a 1333MHz FSB. Has the spec been dropped for some reason, or is it just early models that will have this limitation?
If you replace the processors in a Mac Pro with quad-core ones, what do you do with the old processors? It seems wasteful just to sell them as secondhand on Ebay, shouldn't Apple buy them back or something?
Nah, you just buy a 1U case, dual woodcrest mobo, and build yourself a *buhlazing* little server. Rent a partial rack somewhere, plug in a 10 Mbps line, and serve up a million pageviews a day without breaking a sweat.
- Greg
Start a happiness pandemic
I voided my windows XP product key by upgrading my computer.