Arc B580 vs RTX 4060: 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 Arc B580 leads the RTX 4060 by about 11% — a moderate gap. The Arc B580 has more VRAM (12GB vs 8GB), which helps at high resolutions and in VRAM-hungry titles. The RTX 4060 adds NVIDIA DLSS and stronger ray tracing, while the Arc B580 typically leans on raw rasterisation value.
| Arc B580 | RTX 4060 | |
|---|---|---|
| Performance index | 40/100 | 36/100 |
| VRAM | 12GB | 8GB |
| Board power (TBP) | 190W | 115W |
| Maker PSU guidance | 600W | 550W |
| Our starting PSU class | 650W | 550W |
| Power connector | 8-pin PCIe | 8-pin PCIe |
| Generation | Arc B | RTX 40 |
Relative gaming index — an estimate of typical performance. Real-world gaps vary by game, resolution and settings.
Which should you buy?
Buy the Arc B580 if you want the higher frame rate and can find it at a fair price. Choose the RTX 4060 if it is clearly cheaper and its 8GB+ of VRAM and features cover your target resolution. For ray tracing and DLSS, the NVIDIA option has the edge; for raw rasterisation per dollar, the alternative often wins.
Power planning: Arc B580 PSU · RTX 4060 PSU.
Arc B580 vs RTX 4060 at each resolution
| Resolution | Arc B580 | RTX 4060 |
|---|---|---|
| 1080p | Excellent | Great (4 short of Excellent) |
| 1440p | Playable (8 short of Good) | Not ideal (2 short of Playable) |
| 4K | Not ideal (10 short of Playable) | Not ideal (14 short of Playable) |
The 4-point gap (40 vs 36) changes the verdict at 1080p and 1440p: that is where the Arc B580 earns its place. At 4K both get the same rating, so paying for the faster card buys headroom rather than a different experience there. The Arc B580 also carries 4GB more memory (12GB vs 8GB).
Power, PSU and efficiency
Reference board power is 190W for the Arc B580 and 115W for the RTX 4060, a 75W difference. Per 100W that works out to 21.1 index points for the Arc B580 and 31.3 for the RTX 4060, so the RTX 4060 does more per watt. An existing 550W supply meets the maker guidance for the RTX 4060 but not for the Arc B580 (600W). Only the Arc B580 is a current-generation card; the other is mostly found as remaining or used stock. Full sizing: Arc B580 PSU · RTX 4060 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
- Intel Arc desktop graphics specifications
- NVIDIA GeForce RTX 40 Series 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 Arc B580 better than the RTX 4060?
On our relative index the Arc B580 is about 11% ahead of the RTX 4060. The Arc B580 has more VRAM (12GB vs 8GB), 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 Arc B580 or the RTX 4060?
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 Arc B580 and RTX 4060 need different power supplies?
The Arc B580's maker lists a 600W supply and the RTX 4060's lists 550W; our starting classes are 650W and 550W. If you might move to the Arc B580 later, size for its 600W now. The RTX 4060 can also take a PCIe Gen 5 (12V-2x6) cable; see the connector guide.
Make sure your CPU can keep up with either card using the Bottleneck Estimator, or compare more cards in the GPU comparison hub.