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DrNosferatu 7 hours ago

But single core performance has been stagnant for ages!

Considering ‘Geekbench 6’ scores, at least.

So if it’s not a task massively benefiting from parallelization, buying used is still the best value for money.

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bob1029 7 hours ago | parent | next [-]

Single core performance has not been stagnant. We're about double where we were in 2015 for a range of workloads. Branch prediction, OoO execution, SIMD, etc. make a huge difference.

The clock speed of a core is important and we are hitting physical limits there, but we're also getting more done with each clock cycle than ever before.

	▲	zozbot234 41 minutes ago \| parent [-]
		Doubling single-core performance in 10 years amounts to a less than 10% improvement year-over-year. That will feel like "stagnant" if you're on non-vintage hardware. Of course there are improvements elsewhere that partially offset this, but there's no need to upgrade all that often.

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DrNosferatu 6 hours ago | parent | prev | next [-]

I certainly will not die on this hill: my comment was motivated by recently comparing single core scores on Geekbench6 from 10 years apart CPUs.

Care to provide some data?

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TiredOfLife 6 hours ago | parent | prev | next [-]

Single core performance has tripled in the last 10 years

	▲	ksec an hour ago \| parent [-]
		This. I just did a comparison between my MacBook Pro Early 2015 to MacBook Air M4 Early 2025. Intel Core i5-5287U: - Single-Core Maximum Wattage: ~7-12W - Process Node: 14nm - GB6 Single Core : ~950 - Apple M4: - Single-Core Maximum Wattage: ~4-6W - Process Node: 3nm - GB6 Single Core : ~3600 Intel 14nm = TSMC 10nm > 7nm > 5nm > 3nm In 10 years, we got ~3.5x Single Core performance at ~50% Wattage. i.e 7x Performance per Watt with 3 Node Generation improvements. In terms of Multi Core we got 20x Performance per Watt. I guess that is not too bad depending on how you look at it. Had we compared it to x86 Intel or AMD it would have been worst. I hope M5 have something new.

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PartiallyTyped 7 hours ago | parent | prev [-]

I don’t think that’s true. AMD’s ****X3D chips are evidence that’s not true, with lots of benchmarks supporting this.