However, the company made up for that -- with interest -- at last month's SC09 supercomputing show.
The conference focuses on all things relating to high-performance computing, a market that GPU vendors have increasingly wanted a piece of. Nvidia Corp. and AMD's ATI division were both on hand at SC09 to show off their products tuned for HPC, as was Intel. However, instead of just discussing the Nehalem generation of CPUs, CTO Justin Rattner also showed off Intel's significant development progress on Larrabee.
Intel has been coy about the exact specs of Larrabee. It has not revealed how many cores it will have, nor its clock speed or power draw. What is known is that it's a multicore design that uses older Pentium cores, updated with 64-bit extensions and SIMD extensions, plus a 1,024-bit high-speed ring bus to link all of the cores.
While Larrabee's IDF showing offered little to tantalize the audience -- a demo featured an aging 3D graphics game with barely any action taking place on-screen -- Rattner's SC09 keynote aimed to amaze.
During his presentation, he held up a Larrabee graphics card, which was about as large as modern-day cards, and then ran an HPC demo.
Using an SGEMM single-precision math performance test and half the cores on the card, Larrabee racked up 417 gigaflops (GFLOPS) of performance. With all the cores turned on, it hit 825 GFLOPS, which would indicate the 1:1 scaling that Intel has said it's aiming to provide.
With a little overclocking, Rattner then got it to hit the 1 teraflop (TFLOP) barrier.
By way of comparison, the Intel quad-core QX9775 Core 2 Quad, the highest-end processor of the pre-Nehalem generation, tops out at 51.2 GFLOPs. The Core i7-975, the top desktop of the Nehalem generation, hits 55.36 in turbo mode and 42.56 in regular mode.
Still, Larrabee has its doubters. To industry analyst Jon Peddie, for instance, Larrabee's performance is good -- but not good enough.
"You've got ATI out with a card [the Radeon HD 5970] that can do five teraflops now. For Intel to come out with a card that does one teraflop next year isn't going to cut it in the high-end space," Peddie, president of Jon Peddie Research, told InternetNews.com.
He qualified that by stating that Intel's new toy does perform well, but adds that it has to compete against some very established players in ATI and Nvidia.
"I think Intel wants to show the progress they've been making, and the part can deliver performance, and one teraflop is a good level of performance. If they price it according to other one-teraflop parts from ATI and Nvidia, then they have a contender," he said.
The question is how much of a contender. "Intel will take market share from Nvidia and ATI. How much remains to be seen," Peddie added. "Intel will get market share just for showing up, but going into the performance market, they will have work to do. They are going into Nvidia's and ATI's camp where there is tremendous brand loyalty."
Still, he said he feels Intel is taking the right approach -- even if it's likely to prove tough going.
"They have a program plan, and as far as I know, they are executing close to plan. They've done the seriously hard work in terms of getting developer community onboard. The hard work they had to do was all the software tools," he added.
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