https://wccftech.com/amd-rdna-2-gpus-have-much-better-memory-latency-versus-nvidia-ampere-gpu-architecture/

The memory latency performance of AMD's RDNA 2 & NVIDIA's Ampere GPU architectures has been tested by Chips and Cheese. The tech outlet decided to test out the GPU memory latency performance of the latest GPU architectures from team red and team green & found out some interesting results.

On the CPU side, measuring cache and latency performance has become a crucial pointer with the ever-increasing use of multi-chiplet dies and several IO chips onboard the same die and in recent instances, off-die too (AMD Zen chiplets). GPUs are also composed of several cache hierarchies that fill in the gaps between compute and memory performance and the source used OpenCL-based pointer chasing benchmarks to measure cache and memory latency performance on current-gen of GPUs such as the NVIDIA Ampere and AMD RDNA 2 architectures.