3 ms·

I wish AMD could catch up in single core performance as despite having huge potential in offline parallel processing it falls short in real-time applications.

The_rationalist 8y ago
No it doesn’t fall short, Intel single core lead is < 10%. (except for the few programs that use AVX256) Btw, zen 2 will take the lead at every metrics.
- bitL 8y ago
  Rumors are Zen 2 is 13% faster on average than Zen+. Looking at fastest single-threaded CPUs: https://www.cpubenchmark.net/singleThread.html https://www.cpubenchmark.net/singleThread.html The fastest Zen+ is 2950x at position 85, roughly as fast as Broadwell C, with score of 2230. Now 13% more would give it 2520, roughly matching Haswell 4790k (number 15). So no, it's not likely going to lead every single metrics.
  - The_rationalist 8y ago
    Lol Nice try and your calculus is 100% right for this benchmark under the assumption that only the zen ipc will increase (and new rumors say it could be higher). 7nm will allow higher frequencies too which should make the difference. If Intel still lead in single thread it would probably be negligible.
    - The_rationalist 8y ago
      29% ipc gain under certain workloads !! https://old.reddit.com/r/Amd/comments/9w16y1/amd_claims_zen_2_has_29_higher_ipc_than_zen_1_in/?utm_content=comments&utm_medium=hot&utm_source=reddit&utm_name=Amd https://old.reddit.com/r/Amd/comments/9w16y1/amd_claims_zen_...
      - bitL 8y ago
        Yeah, but we know the AVX is going to be 256-bit, so if there is "higher IPC gain under certain workloads", that's completely expected. We might see a performance decrease under certain workloads as well due to the I/O chip. What's the point of picking a singular workload case and dance around it as if it were the case with any workload?
        The_rationalist 8y ago
        Yes under certain workload doesn't mean a lot. But if it was AVX then the gain would be 100%
    - bitL 8y ago
      I have a Threadripper, I don't need to be a fanboy. I like realistic estimates more.

The_rationalist 8y ago

No it doesn’t fall short, Intel single core lead is < 10%. (except for the few programs that use AVX256) Btw, zen 2 will take the lead at every metrics.

bitL 8y ago
Rumors are Zen 2 is 13% faster on average than Zen+. Looking at fastest single-threaded CPUs: https://www.cpubenchmark.net/singleThread.html https://www.cpubenchmark.net/singleThread.html The fastest Zen+ is 2950x at position 85, roughly as fast as Broadwell C, with score of 2230. Now 13% more would give it 2520, roughly matching Haswell 4790k (number 15). So no, it's not likely going to lead every single metrics.
- The_rationalist 8y ago
  Lol Nice try and your calculus is 100% right for this benchmark under the assumption that only the zen ipc will increase (and new rumors say it could be higher). 7nm will allow higher frequencies too which should make the difference. If Intel still lead in single thread it would probably be negligible.
  - The_rationalist 8y ago
    29% ipc gain under certain workloads !! https://old.reddit.com/r/Amd/comments/9w16y1/amd_claims_zen_2_has_29_higher_ipc_than_zen_1_in/?utm_content=comments&utm_medium=hot&utm_source=reddit&utm_name=Amd https://old.reddit.com/r/Amd/comments/9w16y1/amd_claims_zen_...
    - bitL 8y ago
      Yeah, but we know the AVX is going to be 256-bit, so if there is "higher IPC gain under certain workloads", that's completely expected. We might see a performance decrease under certain workloads as well due to the I/O chip. What's the point of picking a singular workload case and dance around it as if it were the case with any workload?
      - The_rationalist 8y ago
        Yes under certain workload doesn't mean a lot. But if it was AVX then the gain would be 100%
  - bitL 8y ago
    I have a Threadripper, I don't need to be a fanboy. I like realistic estimates more.