7 ms·
I can understand the claim the M1 has the same timings as off-the-shelf DDR4 (thought this was a nice way to explain the apparent increases in memory bandwidth
by AshamedCaptain 5y ago
I can understand the claim the M1 has the same timings as off-the-shelf DDR4 (thought this was a nice way to explain the apparent increases in memory bandwidth shown in benchmarks), but here you are dismissing the concept of HBM entirely.
- rasz 5y agoAfaik M1s dont use HBM (which is 1024bit per chip and are their own thing), but ordinary POP ram like RPI. Anything up to 512bits is just cost cutting. Look at Xbox - no problem fanning out 320bit bus in addition to pcie lanes, same for hiend GPUs. 4096bit is where you can claim someone actually uses HBM for performance, like on Radeon R9 Nano/Fury.