From PC Mag: AMD isn't taking Nvidia's recent performance projections on its new Vera CPUs lying down. After Team Green approved some Phoronix test results showing Vera beating AMD's Epyc server chips in several tests, AMD has released estimated comparisons of its next-generation Venice Epyc chips based on its Zen 6 architecture, Tom's Hardware reports. It claims the per-rack performance of its new chips could be more than three times higher than Vera's.
Nvidia's new 88-core Vera CPUs will pair up with its Rubin GPUs as part of its major AI server rack hardware package later this year. It can support up to 176 simultaneous threads, handle up to 1.5TB of LPDDR5X memory, and should be far faster than its last-generation Grace designs. By the recent Phoronix numbers, they're faster than AMD and Intel alternatives, too, but AMD claims what's coming next should take the crown.
AMD's numbers are a little bit specific, though. It's not releasing like-for-like performance results; instead, it's showing rack performance with a 100 kW deployment. It's an estimation, too, not actual testing, because it doesn't have Vera chips on hand. That doesn't tell us exactly what to expect from its next-gen Epyc designs on a per-chip or per-core basis, but it's still claiming big performance wins.
The 256-core Epyc results, for example, are based on scaling up the Epyc 9965 results from internal testing by 1.7 times. Because AMD believes the combination of Zen 6 architecture, TSMC 2nm node, and additional 64 cores will deliver that kind of performance leap.
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