I'd say that bandwidth matters less than latency for performance. Both are good, but this is part of the reason why we see ever-increasing cache sizes, and memo

I'd say that bandwidth matters less than latency for performance. Both are good, but this is part of the reason why we see ever-increasing cache sizes, and memory physically closer to the CPU. Edit: Of course, it depends on the benchmark. Latency is critical for programs that access many memory addresses randomly, not for data processing applications that scan memory linearly (and GPU use-cases often fall into that category).