NVIDIA
RTX A4000
Ampere · 16 GB GDDR6 ECC · 140 W
82
/ 100
From $1,000
VS
Intel
Arc B580
Battlemage · 12 GB · 190 W · PCIe 4.0 x8
82
/ 100
From $249
Specdex verdict
Dead heat — it comes down to priorities.
In our weighted Specdex score, RTX A4000 lands at 82 and Arc B580 at 82. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick RTX A4000 if…
- ✓ECC VRAM for professional workloads
- ✓ISV certifications
- ✓Huge framebuffer
Pick Arc B580 if…
- ✓Incredible $/frame at 1440p
- ✓12 GB VRAM on a budget card
- ✓Modern AV1 + XeSS 2
RTX A4000 82
vs 82 Arc B580
Score breakdown
RTX A4000
82 raster 77
rt 82
ai 83
efficiency 85
Arc B580
82 raster 82
rt 76
ai 80
efficiency 84
Specs side-by-side
| Spec | RTX A4000 | Arc B580 |
|---|---|---|
| Architecture | Ampere | Xe2 Battlemage |
| VRAM | ▲ 16 GB GDDR6 ECC | 12 GB GDDR6 |
| TBP | 140 W | 190 W |
| Release year | 2021 | — |
| Xe cores | — | 20 |
| Ray Tracing Units | — | 20 |
| XMX engines | — | 160 |
| Memory bus | — | 192-bit |
| Bandwidth | — | 456 GB/s |
| Base clock | — | 1.70 GHz |
| Boost clock | — | 2.67 GHz |
| PCIe | — | PCIe 4.0 x8 |
RTX A4000
Pros
- +ECC VRAM for professional workloads
- +ISV certifications
- +Huge framebuffer
Cons
- −Expensive per-frame vs consumer
- −Lower gaming clocks
- −Driver optimized for CAD/DCC not games
Arc B580
Pros
- +Incredible $/frame at 1440p
- +12 GB VRAM on a budget card
- +Modern AV1 + XeSS 2
Cons
- −PCIe 4.0 x8 interface (not x16) — bottlenecks on PCIe 3.0 boards
- −Older DX11 titles can still struggle
- −Needs resizable BAR
FAQ: RTX A4000 vs Arc B580
Which is better, RTX A4000 or Arc B580? +
Both score 82 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is RTX A4000 worth the price? +
At $1,000, RTX A4000 delivers a Specdex score of 82 — strongest in efficiency.
Is Arc B580 worth the price? +
At $249, Arc B580 delivers a Specdex score of 82 — strongest in efficiency.
Does RTX A4000 or Arc B580 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.