GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The Radeon RX 9070 is dramatically faster than the Arc B580, leading by roughly 113% in our performance index. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
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Radeon RX 9070 vs Arc B580: In-Depth Breakdown
Performance: Radeon RX 9070 vs Arc B580
The Radeon RX 9070 is dramatically faster, around 113% ahead of the Arc B580. That gap is enough to move it up a tier: the Radeon RX 9070 is comfortable at 4K with upscaling and native 1440p, while the Arc B580 is better matched to 1080p.
Price & Value
Right now the Arc B580 starts at $289 GBP against $500 GBP for the Radeon RX 9070. Because it's both faster and competitively priced, the Radeon RX 9070 wins on performance-per-dollar by about 23%. The Radeon RX 9070 is trading below its $549 GBP MSRP — a genuine deal.
Power & Efficiency
The Arc B580 pulls less power (190W vs 220W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 9070 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. Its more modern RDNA 4 architecture on a TSMC N4 process is part of why it does more with each watt.
VRAM & Future-Proofing
With 16GB against 12GB, the Radeon RX 9070 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Arc B580's 12GB can fall short.
Features & Ecosystem
Beyond raw numbers, the Arc B580 brings Intel XeSS upscaling and AV1 encoding, while the Radeon RX 9070 offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: Arc B580 or Radeon RX 9070?
The Radeon RX 9070 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Arc B580 if you find it at a steep discount.