GPU vs GPU
RX 7900 XTX vs RTX 5080
The RTX 5080 is 5% faster at 1440p but costs $201 more. For value, the RX 7900 XTX gives more fps per dollar; buy the RTX 5080 only if you need the extra speed.
Key facts· updated
- At 1440p the RX 7900 XTX averages 122 fps and the RTX 5080 averages 128 fps (Tom's Hardware GPU hierarchy, June 2026, 11-game average at Ultra).
- The RTX 5080 is 5% faster than the RX 7900 XTX at 1440p (Tom's Hardware GPU hierarchy, June 2026).
- The RX 7900 XTX costs $1,799 and the RTX 5080 costs $2,000 (PC Atlas price check, Nov 3, 2026; catalog estimates, not live store prices).
- At those prices the RX 7900 XTX gives the most 1440p fps per $100: 6.8 vs 6.4.
- The RX 7900 XTX has 24 GB of video memory and the RTX 5080 has 16 GB (maker spec pages, checked Oct 29, 2026).
| Spec | RX 7900 XTX | RTX 5080 |
|---|---|---|
| Price today | $1,799Sample | $2,000Sample |
| Average fps at 1080p | 162 | 167 |
| Average fps at 1440p | 122 | 128 |
| Average fps at 4K | 71 | 77 |
| fps per $100 at 1440p | 6.8 | 6.4 |
| Video memory | 24 GB | 16 GB |
| Gaming power | ~355 W | ~360 W |
| Power supply advice | 800 W | 850 W |
| Card length | ~287 mm | ~330 mm |
| Power plug | 8-pin PCIe | 12V-2x6 |
fps: Tom's Hardware GPU hierarchy (June 2026), 11-game average at Ultra. Highlighted = better. Prices last checked . Prices marked Sample are PC Atlas catalog estimates, not live store prices.
Which one should you buy?
The RX 7900 XTX 24GB and RTX 5080 16GB sit in the same class, so this is a straight question of which maker gives more for the money right now. In the Tom's Hardware GPU hierarchy (June 2026), the RX 7900 XTX 24GB averages 122 fps at 1440p and 71 at 4K; the RTX 5080 16GB averages 128 and 77. At 1080p the averages are 162 and 167 fps. That makes the RTX 5080 16GB about 5% faster at 1440p (3% at 1080p, 8% at 4K).
Memory differs: 24GB on the RX 7900 XTX 24GB against 16GB on the RTX 5080 16GB. More memory keeps texture settings high for longer as games get heavier. In games the RX 7900 XTX 24GB draws about 355W and the RTX 5080 16GB about 360W; power supply advice is 800W (maker's advice) vs 850W (maker's advice). The RX 7900 XTX 24GB is about 287mm long, 2.5 slots thick and uses standard 8-pin power; the RTX 5080 16GB is about 330mm long, 3 slots thick with the 12V-2x6 plug.
For upscaling, the RX 7900 XTX 24GB uses FSR 3 and the RTX 5080 16GB uses DLSS; DLSS is supported in the most games.
Our take: the RTX 5080 16GB is the faster card, so it is the pick unless the price gap is bigger than the speed gap. The verdict above checks that with today's prices.
Good to know
- RTX 5080 uses the 12V-2x6 power plug; older power supplies work with the adapter in the box.
Questions
Is the RX 7900 XTX better than the RTX 5080?
The RTX 5080 is 5% faster at 1440p but costs $201 more. For value, the RX 7900 XTX gives more fps per dollar; buy the RTX 5080 only if you need the extra speed.
Which is better value, RX 7900 XTX or RTX 5080?
At today's prices the RX 7900 XTX gives more frames per dollar at 1440p (6.8 vs 6.4 fps per $100).
What power supply do I need?
RX 7900 XTX: 800 W (the maker's advice). RTX 5080: 850 W (the maker's advice).
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