GPU head-to-head · curated specs + live pool data
RX 7800 XTVSArc B580
Specifications
| RX 7800 XT | Arc B580 | |
|---|---|---|
| VRAM | 16 GB GDDR6 | 12 GB GDDR6 |
| Memory bus | 256-bit | 192-bit |
| TBP | 263 W | 190 W |
| PCIe | Gen 4 | Gen 4 |
| Local AI (Q4 fit) | 14B · ~70 tok/s @8B | 14B · ~51 tok/s @8B |
Live benchmark data
Not enough verified runs yet for a fair pool verdict — averages appear once each side has at least five.
Verdict — RX 7800 XT
Best price-per-frame at 1440p for its generation. FSR is workable, RT is passable but not why you'd buy it. Very popular pick with informed budget builders.
Verdict — Arc B580
Intel finally got graphics right. The B580 is genuinely competitive on price/performance and 12 GB helps it age. Drivers are much improved but occasional oddity remains.