In a typical game at high settings, the RTX 5090 is about 30% faster than the RTX 5080. The RTX 5080 has 16 GB of graphics memory, the RTX 5090 32 GB.
A faster graphics card only shows its lead when the processor can prepare the extra frames. How much more the RTX 5090 delivers than the RTX 5080, with common processors:
| Processor | 1080p | 1440p | 4K |
|---|---|---|---|
| Ryzen 5 3600 | No gain | No gain | No gain |
| Ryzen 5 5600 | No gain | No gain | +20% |
| Core i5-12400 | No gain | No gain | +30% |
| Ryzen 5 7600 | No gain | No gain | +30% |
| Core i5-14600K | No gain | No gain | +30% |
| Ryzen 7 9800X3D | No gain | +25% | +30% |
| Any processor fast enough | +30% | +30% | +30% |
With a Core i5-14600K or slower, most of the RTX 5090’s lead is lost at 1440p because the processor cannot keep up: before paying for the faster card, check the processors that suit the RTX 5090.
Each card’s gaming figure comes from the reference data the Bottleneck app uses to judge the hardware it measures; the processors are compared with the same model as the bottleneck calculator, where frame rate is set by whichever part is slower. The figures are for a typical game at high settings and rounded to 5%: individual games, ray tracing and upscaling move them, and price and power draw are not part of it.
Before buying a faster graphics card, make sure your PC gets what it should from the one it has: a setting left wrong can cost as many frames as the upgrade would add. Bottleneck checks the usual reasons a PC falls short of its parts, free: memory below its rated speed or in single channel, Resizable BAR and GPU scheduling left off, a monitor held at 60 Hz, heat. Then, while you play, it records which part set the pace in every frame.
The free version has no time limit and needs no account. Pro, $9 once, explains each problem and how to fix it, makes the common fixes in one click, and costs out the upgrade for your own PC. Compare the versions