• kristianp 2 hours ago
    • gary_0 3 hours ago

      EPYC Turin Dense is TSMC 3nm and AmpereOne is TSMC 5nm, so that's to be expected.

      Given that most (all?) cutting-edge chips use TSMC nowadays, can you really have an apples-to-Apples comparison if the chips being compared aren't on the same process node?

      Unless you're comparing price/performance, since nowadays there's no guarantee that a process shrink will get you significantly cheaper transistors (RIP, Dr. Moore).

      • wmf 2 hours ago

        It's a what you can buy today vs. what you can buy today comparison. Ampere chose to use N5 even though N3 was available and they are paying for that decision.

        • re-thc an hour ago

          > Ampere chose to use N5 even though N3 was available

          Wasn't it just late? There were numerous delays.

          • wmf an hour ago

            Yeah, that's their bigger problem; all their chips are years late. They probably should be shipping AmpereTwo on N3 by now.

          • trhway an hour ago

            Ampere MSRP $5.5K vs $14K for the EPYC. With 1.6x worse performance at 1.2x better energy consumption. Looks like a reasonable option, and the more options the merrier.

          • qball 2 hours ago

            >since nowadays there's no guarantee that a process shrink will get you significantly cheaper transistors

            That is because all cutting-edge chips use TSMC.

            No competition means price per transistor can stay consistent or even rise, which is one part of why most modern CPUs and GPUs have price/performance ratios that are the same or worse than their previous-generation counterparts.

            >can you really have an apples-to-Apples comparison if the chips being compared aren't on the same process node?

            Of course not, but that isn't going to stop people from doing it, nor is it going to stop people from going "x86 is dead" when comparing last-gen-node AMD processors to CPUs only Apple can use (conveniently forgetting that Qualcomm's products underperform at the same process node).

          • amelius an hour ago

            Shouldn't all the credits go to TSMC anyway? I mean coming up with an architecture for a GPU is no small feat, but it's nothing compared to building a fab with the capabilities of TSMC's.

          • snvzz 2 hours ago

            ARM sure isn't the future.

            RISC-V is.

            • yjftsjthsd-h 36 minutes ago

              I hope so, but it clearly isn't the present, unless you're aware of a RV processor in this league that I don't yet know about?

              • deadmutex 2 hours ago

                Future can be 6 days from now or 6 centuries from now. This statement is useless without specific details.

                • readthenotes1 28 minutes ago

                  But by providing such details the statement goes from unknowable to unknown and potentially verifiable at some point.

                  Avoiding falsifiable statements is a skill set that might be worth having in your communications toolkit.

                  (I remember reading that some philosophy school had {True, false, unknown, unknowable} but, alas, cannot find any reference to that just now)

                • crest an hour ago

                  Sure buddy. Just one little thing please tell me where you found a RV64GCV system with comparable throughput as well as throughput per watt instead of a ~100MHz in-order dual-issue toy core that doesn't exist outside FPGAs (and emulation).

                  • netr0ute 43 minutes ago

                    The Milk-V Pioneer has 64 out of order cores and supports 128GB of ECC memory!