wussupi83 88-cores AND focused on single threaded performance Sounds like an oxymoron. A high single threaded performance processor would be valuable to me for some tasks as a consumer. But then again so would an 88-core CPU lol Reply
S58_is_the_goat chaoticjoy1 said: Getting real tired of Jensen. What about miss jensen? https://i.imgur.com/9yBBfOX.jpeg Reply
bit_user The article said: To that end, Vera is optimized for maximum single-threaded performance rather than for maximum core count — unlike AMD's EPYC and Intel Xeon processors. I remain skeptical that its 1T performance is really that good. Again, I think they're spinning a weakness, here, because doing SMT well seems like something that takes multiple generations to refine. For instance Zen 5 cores have a different operational mode for running just one thread, which removes the watermarks that usually restrain a single thread when it has a SMT sibling. Dynamically switching in & out of that mode is going to be complex to implement and verify. Also, even implementing and dialing in the right watermarks for 2T mode is something that takes time and lots of workload testing. AMD and Intel both have frequency-optimized variants of their server CPUs, which sacrifice some core count for greater frequencies. I'm skeptical their 1T/core perf isn't at least as good as Vera's, at comparable core counts. I think Nvidia's decision not to go for higher core counts might've been driven by fabric scalability issues & latency tradeoffs, or maybe they just felt that more cores weren't needed for the CPU portion of the workloads they were targeting, at the time they made these design decisions. Reply
JamesJones44 S58_is_the_goat said: What about miss jensen? https://i.imgur.com/9yBBfOX.jpeg She has certainly aged better than Mr. Jensen Reply
wussupi83 bit_user said: I remain skeptical that its 1T performance is really that good. Again, I think they're spinning a weakness, here, because doing SMT well seems like something that takes multiple generations to refine. For instance Zen 5 cores have a different operational mode for running just one thread, which removes the watermarks that usually restrain a single thread when it has a SMT sibling. Dynamically switching in & out of that mode is going to be complex to implement and verify. Also, even implementing and dialing in the right watermarks for 2T mode is something that takes time and lots of workload testing. AMD and Intel both have frequency-optimized variants of their server CPUs, which sacrifice some core count for greater frequencies. I'm skeptical their 1T/core perf isn't at least as good as Vera's, at comparable core counts. I think Nvidia's decision not to go for higher core counts might've been driven by fabric scalability issues & latency tradeoffs, or maybe they just felt that more cores weren't needed for the CPU portion of the workloads they were targeting, at the time they made these design decisions. A spin is certainly possible. Maybe they didn't plan for the single threaded performance to be the standout feature. And now they have to go with it But it will still have value if it's really that much better than current competitors. Reply
bit_user wussupi83 said: A spin is certainly possible. Maybe they didn't plan for the single threaded performance to be the standout feature. And now they have to go with it But it will still have value if it's really that much better than current competitors. No doubt, this CPU/core sounds like a monster! I can't wait to see some detailed, independent benchmarks & analysis. It's too bad that Nvidia is usually not public about its CPU cores. I think they never presented Denver or Carmel at Hot Chips. Reply
Air2004 "A quick look at the die shot of the processor reveals that it packs 91 cores, which enables Intel to keep three of them for redundancy and get decent yields with an 88-core part." How does that work ? Does not compute. Reply
bit_user Air2004 said: "A quick look at the die shot of the processor reveals that it packs 91 cores, which enables Intel to keep three of them for redundancy and get decent yields with an 88-core part." How does that work ? Does not compute. You mean the part about how the article referenced Intel? Yeah, I caught that too. I'm sure it was just a Freudian slip. ; ) Reply
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Reference reading
- https://www.tomshardware.com/pc-components/cpus/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/cpus/nvidia-will-only-produce-one-88-core-vera-cpu-model-jensen-says-the-company-will-make-billions-of-dollars-from-a-single-sku#main
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