3 ms·
I think the numbers in that article (the CAS latency) are the latency numbers "within" the DRAM module itself, not the end to end latency between the processor
by foota 2y ago
I think the numbers in that article (the CAS latency) are the latency numbers "within" the DRAM module itself, not the end to end latency between the processor and the RAM.
You could read the article on the latest AMD top of the line desktop chip to compare: https://chipsandcheese.com/2024/08/14/amds-ryzen-9950x-zen-5-on-desktop/ https://chipsandcheese.com/2024/08/14/amds-ryzen-9950x-zen-5... (although that's a desktop chip, the original article compares the Intel performance to 128 ns of DRAM latency for AMD's mobile platform Strix Point)
- Tuna-Fish 2y agoCAS latency is only the latency of doing an access from an open row. This is in no way representative of a normal random access latency. (Because caches are so large that if you were frequently hitting open rows, you'd just load from cache instead.) The way CAS has been widely understood as "memory latency" is just wrong.