2 ms·
I generally try to quantify TLB latency and DRAM latency separately. The M1 chip has quite impressive memory latency around 30ns, assuming you aren't thrashing
by sliken 6y ago
I generally try to quantify TLB latency and DRAM latency separately. The M1 chip has quite impressive memory latency around 30ns, assuming you aren't thrashing the TLB.
Desktops tend to be much higher latency, like say the AMD ryzen 5950X. In particular the R per RV range benchmark uses between 1 and 32 pages in a sliding window. The M1 gets around 30ns (which I've personally verified with code I wrote) and the Ryzen 5950x gets around 65ns. Intel does a bit better than AMD, but nowhere close to the M1.