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An interesting thought is the comparison to x86. Icestorm cores max out at 2GHz, but have 30-50% the performance of the 3.2GHz Firestorm cores. Accounting for
by hajile 5y ago
An interesting thought is the comparison to x86.
Icestorm cores max out at 2GHz, but have 30-50% the performance of the 3.2GHz Firestorm cores. Accounting for that frequency difference, the actual performance difference if Icestorm were to boost clocks would be closer to 50-60% of the Firestorm IPC.
Zen 3 at 4.9GHz trades blows with M1 at 3.2GHz in single-core benchmarks.
It seems when you adjust all the things that Icestorm should be 10-30% slower than Zen 3.
Putting that in perspective, Icestorm cores (based on this one microbenchmark) would have around the same performance per clock as the original Zen cores, but only consume a 5-10% of the actual power consumption.