I just bought a new PC with a Gigabyte RTX 5080 OC and an ULTRA 7 265KF and a 850W PSU.
Out of the box i was getting quite disappointing results in time spy (around 30k graphics score and 28k overall).
I spent an hour with MSI afterburner and Heaven to do a quick overclock and managed to go from being below average to above average!!
I then tweaked the values to have a stable OC (+350 core + 1900 memory) which i validated with multiple runs on time spy and a 20 minutes of cyberpunk on max settings.
My worry is that the PSU may not be able to support the extra power draw. When running benchmarks GPU power maxes at 370-380W is that normal?