> Where is this narrative that Zen 3 instances are faster than Graviton 3 instances coming from?
Various benchmarks have shown EPYC Milan performing well compared to contemporary Xeon and ARM-based processors, but the most direct comparison that I've seen was when Phoronix compared Graviton2 M6g instances to GCP's EPYC Milan-powered T2D instances.[1] The T2D instances beat the equivalent M6g instances across the board, oftentimes by substantial margins.
Of course, that's comparing against Graviton2, not Graviton3, but the performance delta is wide enough that T2D instances will still probably be faster in most cases.
Unfortunately those claims don't translate to servers, because the IO die's power usage increased and perf/w isn't much better [1]. Do the math and you get around 14% gain in SPEC MT workloads.
Various benchmarks have shown EPYC Milan performing well compared to contemporary Xeon and ARM-based processors, but the most direct comparison that I've seen was when Phoronix compared Graviton2 M6g instances to GCP's EPYC Milan-powered T2D instances.[1] The T2D instances beat the equivalent M6g instances across the board, oftentimes by substantial margins.
Of course, that's comparing against Graviton2, not Graviton3, but the performance delta is wide enough that T2D instances will still probably be faster in most cases.
[1] https://www.phoronix.com/scan.php?page=article&item=tau-vm-t...