3 ms·
Or like CPU clock speeds, which have never correlated directly with performance across families, even when comparing something as old as the 6502 vs. Z80.
by sehugg 8y ago
Or like CPU clock speeds, which have never correlated directly with performance across families, even when comparing something as old as the 6502 vs. Z80.
- umanwizard 8y agoIt's not quite the same thing, since CPU clock speeds do in fact have a well-defined meaning.
- close04 8y agoIt's starting to get murky. We're back to the point where not everything runs at the same speed (take AVX for example [0]). Add to that that some of the frequencies are turbo, and specific frequencies are only achieved under very specific load conditions, etc. You get something that physically is very clearly defined but in practice it's not. Just like the minimum feature size which doesn't tell you much about the rest of the transistor. Perhaps if they used an average feature size it would make more sense for the regular person. So how are the fabrication sizes different from the frequency that gets advertised on the box? "Oh that? It's only when you load one core. And don't run anything using these specific instructions. And when the temperature isn't too high. And...". [0] https://www.tcm.phy.cam.ac.uk/~mjr/IT/clocks.html https://www.tcm.phy.cam.ac.uk/~mjr/IT/clocks.html