RX 9060 XT vs Arc B580: Which Should You Buy?
Head-to-head on performance, VRAM, power and value for 2026.
Quick Summary · TL;DR
On our relative performance index the RX 9060 XT leads the Arc B580 by about 25% — a large gap. The RX 9060 XT has more VRAM (16GB vs 12GB), which helps at high resolutions and in VRAM-hungry titles.
| RX 9060 XT | Arc B580 | |
|---|---|---|
| Performance index | 50/100 | 40/100 |
| VRAM | 16GB | 12GB |
| Board power (TBP) | 160W | 190W |
| Maker PSU guidance | 450W | 600W |
| Our starting PSU class | 550W | 650W |
| Power connector | 8-pin PCIe | 8-pin PCIe |
| Generation | RX 9000 | Arc B |
Relative gaming index — an estimate of typical performance. Real-world gaps vary by game, resolution and settings.
Which should you buy?
Buy the RX 9060 XT if you want the higher frame rate and can find it at a fair price. Choose the Arc B580 if it is clearly cheaper and its 12GB+ of VRAM and features cover your target resolution. Both are from a similar lineage, so price is the main deciding factor.
Power planning: RX 9060 XT PSU · Arc B580 PSU.
RX 9060 XT 16GB vs Arc B580 at each resolution
| Resolution | RX 9060 XT 16GB | Arc B580 |
|---|---|---|
| 1080p | Excellent | Excellent |
| 1440p | Good (10 short of Great) | Playable (8 short of Good) |
| 4K | Playable (14 short of Good) | Not ideal (10 short of Playable) |
The 10-point gap (50 vs 40) changes the verdict at 1440p and 4K: that is where the RX 9060 XT 16GB earns its place. At 1080p both get the same rating, so paying for the faster card buys headroom rather than a different experience there. The RX 9060 XT 16GB also carries 4GB more memory (16GB vs 12GB).
Power, PSU and efficiency
Reference board power is 160W for the RX 9060 XT 16GB and 190W for the Arc B580, a 30W difference. Per 100W that works out to 31.3 index points for the RX 9060 XT 16GB and 21.1 for the Arc B580, so the RX 9060 XT 16GB does more per watt. An existing 450W supply meets the maker guidance for the RX 9060 XT 16GB but not for the Arc B580 (600W). Full sizing: RX 9060 XT 16GB PSU · Arc B580 PSU.
Ratings use the same index lines as our GPU resolution pages; the index is an editorial tier summary, not a benchmark. PSU figures are the makers’ reference guidance reviewed 12 September 2026.
Sources & verification
- AMD Radeon desktop graphics specifications
- Intel Arc desktop graphics specifications
- SpecsCalc calculation methodology and limitations
Relative indices summarize broad gaming tiers and are not a substitute for game-by-game benchmark averages. Price and driver updates can change the buying recommendation. Last reviewed September 19, 2026.
Frequently asked questions
Is the RX 9060 XT better than the Arc B580?
On our relative index the RX 9060 XT is about 25% ahead of the Arc B580. The RX 9060 XT has more VRAM (16GB vs 12GB), which helps at high resolutions and in VRAM-hungry titles. The smaller the gap, the more other factors like price, VRAM and features should decide it.
Which is better value, the RX 9060 XT or the Arc B580?
Value depends on the price you can find each at. The slower card is usually the smart buy if it is meaningfully cheaper, unless you need the extra VRAM or features of the faster one.
Do the RX 9060 XT and Arc B580 need different power supplies?
The RX 9060 XT 16GB's maker lists a 450W supply and the Arc B580's lists 600W; our starting classes are 550W and 650W. If you might move to the Arc B580 later, size for its 600W now.
Make sure your CPU can keep up with either card using the Bottleneck Estimator, or compare more cards in the GPU comparison hub.