GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Arc A770 comes out noticeably faster — about 17% ahead of the Arc B580.
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Arc A770 vs Arc B580: In-Depth Breakdown
Performance: Arc A770 vs Arc B580
The Arc A770 is noticeably faster, around 17% ahead of the Arc B580. That gap is enough to move it up a tier: the Arc A770 is comfortable at 1440p, while the Arc B580 is better matched to 1080p. The Arc A770 packs 4,096 shading units versus 2,560 on the Arc B580.
Power & Efficiency
At 190W against 225W, the Arc B580 is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern Battlemage architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Arc A770 carries 16GB versus 12GB on the Arc B580. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Arc A770's memory is also faster — 560 GB/s versus 456 GB/s (256-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Arc B580 is roughly 2 years newer than the Arc A770 (Battlemage vs Alchemist), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Arc A770 or Arc B580?
The Arc A770 is the faster card by about 17%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.