Intel's Core 2 Extreme & Core 2 Duo: The Empire Strikes Back
by Anand Lal Shimpi on July 14, 2006 12:00 AM EST- Posted in
- CPUs
Gaming with Core 2 and CrossFire on 975X
We were so used to getting excited over AMD processor launches that we almost forgot what an important Intel CPU launch was like. You see, AMD and Intel behave very differently when at a dinner table preparing to eat their meals. AMD will eat when its partners eat; companies like ATI and NVIDIA get to share in the joy of a new AMD product launch as they are busy building chipsets for the new platform. That's why we get a new nForce chipset whenever AMD launches a new CPU. Intel on the other hand isn't as generous; Intel likes to eat first, and then whatever remains after it's nice and full can be scraped off the table and given to its partners. This is why today's launch is taking place pretty much exclusively on Intel chipsets, with retail products based on ATI/NVIDIA chipsets shipping in the coming months.
Intel's table manners aren't as nice as AMD's largely because they don't have to be. Intel has a lot more fabs than AMD, however they aren't all pumping out 65nm Core 2 Duos on 300mm wafers; instead many of them are still using old 90nm or 130nm process technology. It's not exactly economically feasible to keep converting all of the fabs to the latest technology as soon as it's available, so Intel uses up excess capacity in its older fabs by producing chipsets. AMD does not have this luxury so it depends on companies like ATI, NVIDIA, SiS and VIA for the platform side of things, and thus is much nicer at the dinner table.
Eating habits aside, what this means for us is that our only real options to test Core 2 Duo are with Intel chipsets. NVIDIA's nForce 590 SLI reference board for Core 2 Duo is in our labs but its BIOS isn't finalized yet so NVIDIA is asking us to hold off on using it for a couple more weeks. At the same time, we're hearing that we shouldn't expect any retail motherboards using ATI chipsets for Core 2 Duo motherboards until September at the earliest, once again leaving us with Intel.
Don't get us wrong; Intel chipsets are far from a terrible option. In fact, Intel continues to make extremely trouble-free platforms. It's not stability or performance that we're concerned about, as Intel has got both of those down pat. The issue however is multi-GPU compatibility.
You see, NVIDIA is a lot like Intel in that it wants to eat first or maybe, if the right people are at the table, at the same time as its partners. The problem with two companies that have identical eating habits is that no one ends up eating, and thus we have no SLI support on Intel chipsets. NVIDIA views this as an upper hand because honestly it's the only tangible advantage anyone has ever held over an Intel chipset since the days when Intel and Rambus were inseparable. If you want the best multi-GPU solution on the market you buy NVIDIA graphics cards, but they won't run (together) on Intel chipsets so you've got to buy the NVIDIA chipset as well - sounds like NVIDIA is trying to eat some of Intel's dinner, and this doesn't make Intel very happy.
Luckily for Intel, there's this little agreement it has with NVIDIA's chief competitor - ATI. Among other things, it makes sure that Intel platforms (or platform in this case, since it only officially works on the 975X) can support CrossFire, ATI's multi-GPU technology. Unfortunately, CrossFire isn't nearly as polished as NVIDIA's SLI. Case in point would be benchmarking for this Core 2 Duo article, which used a pair of X1900 XTs running in CrossFire mode. During our testing, CrossFire decided to disable itself after a simple reboot - twice. No warnings, no hardware changes, just lower frame rates after a reboot and a CrossFire enable checkbox that had become unchecked. Needless to say it was annoying, but by now we already know that CrossFire needs work and ATI is on it.
More than anything this is simply a message to ATI and Intel: if CrossFire had been in better shape, the high end gaming enthusiast could have been satisfied today, but instead they will have to wait a little longer for the first nForce 500 motherboards with Core 2 support to arrive (or settle for a nForce 4 board with Core 2 support).
Why does multi-GPU even matter? Given how fast Intel's Core 2 processors are, we needed to pair them with a GPU setup that was well matched - in this case we went with a pair of X1900 XTs running in CrossFire mode. With a pair of X1900 XTs we could run at 1600 x 1200 for all of our gaming tests, achieving a good balance between CPU and GPU loads and adequately characterizing the gaming performance of Intel's Core 2 line.
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Calin - Friday, July 14, 2006 - link
This is a bit more complicated - you could buy a $1000 FX-62, or you could buy a $316 Core2Duo, then a $150+ mainboard. If you want to run SLI, you are out of luck right now - but things might change in the immediate future. If you have NVidia SLI, you must go to Crossfire (at this moment).But anyway, looks like AMD can not compete in the top
Regs - Friday, July 14, 2006 - link
Since the P6!!!! Makes me think if AMD actually cares about improving performance on their processors. Maybe they should scrap the Fab in New York and make a research facility instead. Start hiring interns from MIT. Do something! lol.I admit, even though I enjoyed AMD having the performance crown, It was a period of limited choice and limited performance gain. Who here on the free market care about 100MHz increaments? They went from a 110nm to 90nm with no performance benifit - they went from single core to the dual core X2's with no performance benifit -- they went from DDR to DDR2 with no performance improvement -- now they are going to 65nm which they also made clear they will make no changes to increase performance. AMD has really dropped the ball and they deserve what they get. I don't know why anyone, including over clockers, would want to be a AMD fan boy at the momment.
CKDragon - Friday, July 14, 2006 - link
AMD went from single core to dual core with no performance benefit?Maybe on Planet Troll...
Regs - Friday, July 14, 2006 - link
The X2 improved performance only on specific suites of software. Can you say the same about Conroe? I mean I was really able to crank up the rez in oblivion after I upgraded to an X2 *rolls eyes*.JarredWalton - Friday, July 14, 2006 - link
The performance increases you're seeing in most games on Core 2 Duo come entirely from the better architecture, not from dual processor cores. We just can't test single core performance on Core 2 because such chips don't exist and they won't until Conroe-L ships (in about a year judging by road maps -- it looks like Intel and their partners want to have time to clear out all of their NetBurst inventory first).Regs - Friday, July 14, 2006 - link
Yes, I completely agree. The only difference on the X2 compared to the single cores was encoding. Not unless you do own a 10-thousand dollar server for well...server use.Calin - Friday, July 14, 2006 - link
Being a fanboy is like a religion - you don't change your religion overnight.AMD cares about selling expensive processors. As long as the P4 was the opposition (especially after the Northwood days), AMD was king of hill, and sold its processors at whatever prices the market would pay. Now, Intel took that place. I hope this will change with K8L, as this will bring even lower prices for even better processors.
Also, AMD was unable to produce enough processors, so they sold most of it for a premium. As for the move to 90nm, they got some extra frequency headroom, and lower power consumption. This also reduced their costs (too bad the cost reduction wasn't really passed to customers).
If their move from single to dual core brought no performance benefit, tell that to companies buying dual core opterons for thousands dollars apiece.
segagenesis - Friday, July 14, 2006 - link
Good lord. You might as well throw up the GAME OVER and TILT signs for AMD right now. Although I wouldnt want them to disappear from competition (I dont want us to return to expensive Intel cpu's at the same time) there isnt much I see in this article that gives AMD any advantage at the moment over Intel. Sooner or later this was bound to happen from Intel though, the Athlon 64 made a similar situation against Pentium 4 making it look pretty obsolete comparitavely at the time.Now assuming the prices that AMD plans to drop to are correct, perhaps they can remain compeditive for building a budget system vs. Core 2 as I would not recommend a new Pentium 4 at this point to anyone...
That reminds me of the good ol days over overclocking the Celeron A...
dice1111 - Wednesday, July 19, 2006 - link
Ahhh, yes. My old Celeron A (still overclocked and in use). I was so happy about overclocking back then. Please Intel, let me get that taste of nostalgia!!!mobutu - Friday, July 14, 2006 - link
I'd really like to upgrade to Conroe but I don't want the Intel chipset on motherboard.Jarred, Wesley, do you know (estimate) when you'll have a review with final 590 reference board and when we can expect motherboards with 590 Intel edtn to be available?
Thanks in advance guys. Great Conroe review.