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Actually, Intel beats M1/M2 in perf/watt benchmarks: https://www.cpubenchmark.net/power_performance.html https://www.cpubenchmark.net/power_performance.html
by ipsum2 4y ago
Actually, Intel beats M1/M2 in perf/watt benchmarks: https://www.cpubenchmark.net/power_performance.html https://www.cpubenchmark.net/power_performance.html
- sliken 4y agoVery weird measure of efficiency. Perf/(Max TDP) doesn't really measure efficiency. Running a workload you care about and measure power usage at the wall would be a MUCH better metric. The Intel chip might well spend most of it's time at Max TDP and throttling while the M1 might require unusual circumstances (like maxing out the fast cores, slow cores, matrix multiply (which is outside the core), memory controller, and iGPU simultaneously. There's not really any way to tell from the posted benchmark. Wonder if the i7-1250 runs in any laptops without a fan.
- rcxdude 4y agoAlso, TDP is a spec point with a lot of BS. Intel's TDP is widely mocked for being far under the actual maximum power draw of the chip. I don't know how Apple is working out their TDP but it's almost certainly different to Intel. But then if you have accurate numbers it's still not a great measure because cores are at their least efficient when maxed out (like desktop CPUs usually are and laptop CPUs usually aren't), so it's a comparison which is unfair to intel and you should really compare the real power consumption of an intel CPU when clocked to get equivalent performance to an M1. So the data is basically useless as a comparison.