4 ms·
I don't think the L0 is the "new" cache. It's still 48K like the old L1. The 9 cycle 192K cache about halfway between the old L1 and L2 is really the new cache
by trynumber9 2y ago
I don't think the L0 is the "new" cache. It's still 48K like the old L1. The 9 cycle 192K cache about halfway between the old L1 and L2 is really the new cache level in size and latency. And that's now called L1.
- hajile 2y agoL0 latency is 4 cycles while old L1 was 5 cycles, so it's definitely a new cache even though the size is the same. Apple does a lot better. I'm not sure about newer chips, but M1 has the same 192kb of L1, but with the 4 cycle latency of Intel's tiny 48kb cache.
- KingOfCoders 2y agoYes, Apple makes expensive CPUs and has much more cache, one of the reasons why they have been faster and why Intel adds much more caching each generation now.