3 ms·
A lot of that is due to the low memory bandwidth on mainstream CPU sockets: 128-bit bus, going up to around 6GT/s currently. That's half the memory bandwidth of
by wtallis 4y ago
A lot of that is due to the low memory bandwidth on mainstream CPU sockets: 128-bit bus, going up to around 6GT/s currently. That's half the memory bandwidth of NVIDIA's current entry-level laptop discrete GPU. And more L3 cache on a CPU directly addresses that memory bandwidth limitation (provided it's accessible to the iGPU, which would certainly be the case if AMD put 3D cache on an APU).