RAM chip manufacturer Micron has recently been making some interesting claims about its next generation of ultra-fast memory for graphics cards, GDDR7. Compared to what's currently being used (GDDR6X and GDDR6), Micron says its forthcoming tech is "expected to achieve greater than 30% improvement in frames per second for ray tracing and rasterization workloads."
That's a remarkable performance boost, no matter how you look at it, and it's normally the preserve of the significant architectural changes a new GPU design brings in.