Arc B580
Battlemage · 12 GB · 190 W · PCIe 4.0 x8
Sapphire Nitro+ Radeon Pro W7700
RDNA 3 · 16 GB GDDR6 · 190 W · Nitro+
Dead heat — it comes down to priorities.
In our weighted Specdex score, Arc B580 lands at 82 and Sapphire Nitro+ Radeon Pro W7700 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 Sapphire Nitro+ Radeon Pro W7700 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
Sapphire Nitro+ Radeon Pro W7700RT-heavy titles with path-traced lighting
Sapphire Nitro+ Radeon Pro W7700 leads on rt (82 vs 76).
AI workloads
Sapphire Nitro+ Radeon Pro W7700Local inference, upscaling, generative tools
Sapphire Nitro+ Radeon Pro W7700 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 $1,128).
Score breakdown
Specs side-by-side
| Spec | Arc B580 | Sapphire Nitro+ Radeon Pro W7700 |
|---|---|---|
| Architecture | Xe2 Battlemage | RDNA 3 |
| Xe cores | 20 | — |
| Ray Tracing Units | 20 | — |
| XMX engines | 160 | — |
| VRAM | 12 GB GDDR6 | ▲ 16 GB GDDR6 |
| Memory bus | 192-bit | — |
| Bandwidth | 456 GB/s | — |
| Base clock | 1.70 GHz | — |
| Boost clock | 2.67 GHz | — |
| TBP | 190 W | 190 W |
| PCIe | PCIe 4.0 x8 | — |
| Release year | — | 2023 |
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
Sapphire Nitro+ Radeon Pro W7700
- +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 Sapphire Nitro+ Radeon Pro W7700
Which is better, Arc B580 or Sapphire Nitro+ Radeon Pro W7700? +
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 Sapphire Nitro+ Radeon Pro W7700 worth the price? +
At $1,128, Sapphire Nitro+ Radeon Pro W7700 delivers a Specdex score of 82 — strongest in efficiency.
Does Arc B580 or Sapphire Nitro+ Radeon Pro W7700 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 Sapphire Nitro+ Radeon Pro W7700? +
Arc B580 — leads on raster (82 vs 77). Traditional rendering throughput at high resolution.
Which is better for ray tracing, Arc B580 or Sapphire Nitro+ Radeon Pro W7700? +
Sapphire Nitro+ Radeon Pro W7700 — leads on rt (82 vs 76). RT-heavy titles with path-traced lighting.