4 ms·
What do you mean? This is just about nm?
by ladyanita22 6y ago
What do you mean? This is just about nm?
- formerly_proven 6y agoDebating which ISA enables higher performance designs has been shown in the last 25 years to be a lot like debating which JIT API will result in faster execution.
- ben-schaaf 6y agoAMD, Apple, NVIDIA and those AWS chips use TSMCs 7nm process node which has a ~50% efficiency advantage over Intel's 14nm (the actual nm isn't comparable though).
- flyinglizard 6y agoNo, it's also about system and memory interconnects, caches, various accelerators, core configuration, and indeed process nodes as mentioned above. I don't think there's anything inherently faster in one ISA than the other.
- acdha 6y agoThere can be ISA-level differences: Itanium’s VLIW structure meant a lot of memory was storing NOPs filling unused slots unless your work aligned perfectly with the CPU and you had a brilliant compiler. These days, I think you’re right with the possible exception of density: if you have comparable resources, vector extensions, etc. an ISA which uses memory more efficiently is going to get a little more out of its cache and memory bandwidth, but that’s probably not going to be huge.
- ladyanita22 6y agoThen I fail to understand how is Intel's perf/watt behind some ARM vendors. They probably have the best talent in the industry.