[Blue Spirit]

RTX 5090 vs RTX 4090 tested at same power level: RTX 50 flagship shows efficiency downgrade vs previous gen

According to ComputerBase RTX 5090 manages 17% more FPS on average vs RTX 4090 in rasterization workloads when both cards are limited to 450 W. So, the RTX 5090 suffers a performance regression of 8% when using 125 W less power.

This 17% performance bump at 450 W is also quite interesting, since the RTX 5090 packs 33% more CUDA cores than the RTX 4090. As such, one would expect the performance difference to be noticeably greater than the measured 17% when the RTX 5090’s power consumption advantage is removed. Granted, the lower GPU clocks of the RTX 5090 (113 MHz less) are undoubtedly negatively affecting the overall performance.

All things considered, it seems that Nvidia is brute-forcing its way to a decent lead for the RTX 5090 over the RTX 4090. However, this doesn’t fare well for the GPU’s efficiency, as the RTX 5090 appears to scale linearly with TDP (27% more performance for 28% more energy). For reference, the RTX 4090 has a >50% advantage vs RTX 3090 at a 29% higher TDP.

https://www.notebookcheck.net/RTX-50....952084.0.html

https://www.computerbase.de/artikel/...90-test.91081/

EDIT:

NVIDIA GeForce RTX 5090 PCI-Express Scaling