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Single Threaded Performance vs Multi Threaded Performance; Which is more important in 2023? (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

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For much of the 2010s, we were stuck with mainly dual-core and quad-core CPUs in PCs. However the arrival of Ryzen shook the PC industry, causing a rapid increase in core counts. At the time, there was fervent discussion on this matter, with many questioning if more cores were worth it, and how many cores are more than enough?

So how do things stand today? The latest Intel and AMD consumer processors top out at 24 and 16 cores respectively. What extent of modern software can take advantage of all those cores? What modern workloads are still bottlenecked by single threaded performance?

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[–] [email protected] 1 points 11 months ago

That's only true for intel, who disable part of the L3 along with the cores. AMD however has the full L3 enabled on their 6-cores.

The marketing folks love to add up the L2 cache as well, but since that is not shared cache, each core still has the exact same amount of cache available to it, in spite of having a lower number on the spec sheet.