RTX 5080 vs RTX 5090: How Much Faster Is the 5090?
The RTX 5090 is 44% faster than the RTX 5080 on our performance index and doubles its video memory, from 16GB to 32GB. It also doubles the price: $1999 at launch against $999.
The spec sheet makes the 5090 look like the obvious winner. The real question is whether any game you will play in 2027 needs it, and here the published requirements give a clear answer.
RTX 5080 vs RTX 5090: the specs side by side
| RTX 5080 | RTX 5090 | |
|---|---|---|
| Performance index | 89 | 128 |
| Relative speed | 100% | 144% |
| Video memory | 16GB | 32GB |
| Board power | 360W | 575W |
| Launch price (MSRP) | $999 | $1999 |
| Index points per $100 | 8.9 | 6.4 |
| Index points per 100W | 24.7 | 22.3 |
| Released | 2025 | 2025 |
| Upscaling support | DLSS, FSR | DLSS, FSR |
| Recommended specs met, 2024+ games | 19 of 19 | 19 of 19 |
| Recommended specs met, upcoming games | 16 of 16 | 16 of 16 |
"Recommended specs met" counts the games whose recommended graphics card each GPU matches or beats. It covers the 19 games from 2024 onward in our catalogue that name a recommended card, and the 16 unreleased games whose publishers have posted one.
Does any game need an RTX 5090?
Not yet. The RTX 5080 already meets the recommended graphics card of all 16 unreleased games that have posted one, and 19 of the 19 recent games that name a recommended card. Every extra frame the 5090 delivers goes beyond what publishers ask for. That is why it matters most for 4K at high refresh rates, heavy path tracing and creative work that fills 32GB of memory.
What the extra $1000 buys
Measured per dollar, the RTX 5080 returns 8.9 index points per $100 and the 5090 returns 6.4. The step up is 44% more performance for 100% more money, which is typical of flagship pricing.
Power and heat
The 5090 is rated at 575W of board power, 215W more than the 5080's 360W. That often means a new power supply, and it always means more heat in the case. Run your parts through the PSU calculator before you buy.
Verdict
- Buy the NVIDIA GeForce RTX 5080 for gaming. It meets every published recommended spec for upcoming games and delivers more performance per dollar.
- Buy the NVIDIA GeForce RTX 5090 if you play at 4K with path tracing, want the most headroom money can buy, or need 32GB of memory for work as well as play.
Want a different pairing? Put any two cards in the GPU comparison tool, see both on the GPU tier list for 2027, or estimate frame rates for a specific game with the FPS calculator.
How these numbers were worked out
Requirements are the publishers' own, read from each game's Steam store page (last checked 15 September 2026). Entries such as "TBD" or "Coming soon" count as not published, never as a spec. Graphics cards are compared on the relative performance index explained in our editorial standards, where a card "meets" a requirement when it scores at least as high as the card the publisher named and has any VRAM amount the publisher stated. This article is rebuilt whenever that data is refreshed.
Prices are launch MSRPs in US dollars, not today's street prices, which we do not track.