GPU vs GPU
Arc B570 vs Arc B580
The Arc B580 is 14% faster at 1440p but costs $73 more. For value, the Arc B570 gives more fps per dollar; buy the Arc B580 only if you need the extra speed.
Key facts· updated
- At 1440p the Arc B570 averages 44 fps and the Arc B580 averages 51 fps (Tom's Hardware GPU hierarchy, June 2026, 11-game average at Ultra).
- The Arc B580 is 14% faster than the Arc B570 at 1440p (Tom's Hardware GPU hierarchy, June 2026).
- The Arc B570 costs $289 and the Arc B580 costs $362 (PC Atlas price check, Nov 3, 2026; catalog estimates, not live store prices).
- At those prices the Arc B570 gives the most 1440p fps per $100: 15.3 vs 14.0.
- The Arc B570 has 10 GB of video memory and the Arc B580 has 12 GB (maker spec pages, checked Oct 29, 2026).
| Spec | Arc B570 | Arc B580 |
|---|---|---|
| Price today | $289Sample | $362Sample |
| Average fps at 1080p | 64 | 72 |
| Average fps at 1440p | 44 | 51 |
| Average fps at 4K | 20 | 28 |
| fps per $100 at 1440p | 15.3 | 14.0 |
| Video memory | 10 GB | 12 GB |
| Gaming power | ~150 W | ~190 W |
| Power supply advice | - | - |
| Card length | ~250 mm | ~272 mm |
| Power plug | 8-pin PCIe | 8-pin PCIe |
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 Arc B570 10GB and Arc B580 12GB 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 Arc B570 10GB averages 44 fps at 1440p and 20 at 4K; the Arc B580 12GB averages 51 and 28. At 1080p the averages are 64 and 72 fps. That makes the Arc B580 12GB about 16% faster at 1440p (13% at 1080p, 40% at 4K).
Memory differs: 10GB on the Arc B570 10GB against 12GB on the Arc B580 12GB. More memory keeps texture settings high for longer as games get heavier. In games the Arc B570 10GB draws about 150W and the Arc B580 12GB about 190W; power supply advice is about 450W (our rule of thumb) vs about 550W (our rule of thumb). The Arc B570 10GB is about 250mm long, 2 slots thick and uses standard 8-pin power; the Arc B580 12GB is about 272mm long, 2 slots thick with standard 8-pin power.
Both use XeSS for upscaling.
Our take: the Arc B580 12GB 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.
Questions
Is the Arc B570 better than the Arc B580?
The Arc B580 is 14% faster at 1440p but costs $73 more. For value, the Arc B570 gives more fps per dollar; buy the Arc B580 only if you need the extra speed.
Which is better value, Arc B570 or Arc B580?
At today's prices the Arc B570 gives more frames per dollar at 1440p (15.3 vs 14.0 fps per $100).
What power supply do I need?
Arc B570: about 450 W with a typical gaming CPU. Arc B580: about 550 W with a typical gaming CPU.
Not sure which fits your games? The PC Wizard picks for you →