Arc B580
Battlemage · 12 GB · 190 W · PCIe 4.0 x8
RTX A4000
Ampere · 16 GB GDDR6 ECC · 140 W
Dead heat — it comes down to priorities.
In our weighted Specdex score, Arc B580 lands at 82 and RTX A4000 at 82. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Arc B580 if…
- ✓Incredible $/frame at 1440p
- ✓12 GB VRAM on a budget card
- ✓Modern AV1 + XeSS 2
Pick RTX A4000 if…
- ✓ECC VRAM for professional workloads
- ✓ISV certifications
- ✓Huge framebuffer
Winner by scenario
Derived from the sub-score breakdown · not a separate test4K & rasterization
Arc B580Traditional rendering throughput at high resolution
Arc B580 leads on raster (82 vs 77).
Ray tracing
RTX A4000RT-heavy titles with path-traced lighting
RTX A4000 leads on rt (82 vs 76).
AI workloads
RTX A4000Local inference, upscaling, generative tools
RTX A4000 leads on ai (83 vs 80).
Power efficiency
TieFrames per watt — heat, noise, and PSU sizing
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
Arc B580Specdex score per dollar at MSRP
Arc B580 more score per dollar ($249 vs $1,000).
Score breakdown
Specs side-by-side
| Spec | Arc B580 | RTX A4000 |
|---|---|---|
| Architecture | Xe2 Battlemage | Ampere |
| Xe cores | 20 | — |
| Ray Tracing Units | 20 | — |
| XMX engines | 160 | — |
| VRAM | 12 GB GDDR6 | ▲ 16 GB GDDR6 ECC |
| Memory bus | 192-bit | — |
| Bandwidth | 456 GB/s | — |
| Base clock | 1.70 GHz | — |
| Boost clock | 2.67 GHz | — |
| TBP | 190 W | 140 W |
| PCIe | PCIe 4.0 x8 | — |
| Release year | — | 2021 |
Arc B580
- +Incredible $/frame at 1440p
- +12 GB VRAM on a budget card
- +Modern AV1 + XeSS 2
- −PCIe 4.0 x8 interface (not x16) — bottlenecks on PCIe 3.0 boards
- −Older DX11 titles can still struggle
- −Needs resizable BAR
RTX A4000
- +ECC VRAM for professional workloads
- +ISV certifications
- +Huge framebuffer
- −Expensive per-frame vs consumer
- −Lower gaming clocks
- −Driver optimized for CAD/DCC not games
FAQ: Arc B580 vs RTX A4000
Which is better, Arc B580 or RTX A4000? +
Both score 82 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Arc B580 worth the price? +
At $249, Arc B580 delivers a Specdex score of 82 — strongest in efficiency.
Is RTX A4000 worth the price? +
At $1,000, RTX A4000 delivers a Specdex score of 82 — strongest in efficiency.
Does Arc B580 or RTX A4000 last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is better for 4K gaming, Arc B580 or RTX A4000? +
Arc B580 — leads on raster (82 vs 77). Traditional rendering throughput at high resolution.
Which is better for ray tracing, Arc B580 or RTX A4000? +
RTX A4000 — leads on rt (82 vs 76). RT-heavy titles with path-traced lighting.