Leaked overclock benchmarks for the upcoming NVIDIA GeForce RTX 3080 Ampere graphics card were recently published. The tests showed memory clocks pushed 9 percent for a mere 2-3 percent performance gain. This raises questions about the RTX 3080's performance gap with the RTX 3090, which delivers 936 GB/s of memory bandwidth.
https://www.notebookcheck.net/Poor-memory-OC-scaling-on-the-GeForce-RTX-3080-might-be-a-blessing-in-disguise-with-closer-than-expected-performance-to-the-GeForce-RTX-3090.493458.0.html