Comment by watermelon0
Comment by watermelon0 a day ago
How is the performance difference negligible? In my experience, for the same generation of hardware, ARM64 performance is better than the AMD64 one.
AFAIK ARM64 is around 20% cheaper, not sure where you got the 50%.
I'm curious if you have any posted benchmarks about it. In my own experience at work, m8a demolishes m8g core-for-core. The ARM64 core is much slower. I wonder if you're comparing vCPU-for-vCPU against Intel families that use SMT: that's one ARM64 core against one Intel HyperThread. Make sure you're using AMD.
e.g. https://www.phoronix.com/review/aws-m8a-m8g-m8i-benchmarks -- m8a won virtually all of these comparisons by a wide margin. Raw performance isn't really Graviton's selling point; price-performance is.