GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Radeon RX Vega 56 comes out dramatically faster — about 56% ahead of the Radeon RX 580. But the Radeon RX 580 is the better value, undercutting it by $349 GBP for the performance you get.
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Radeon RX Vega 56 vs Radeon RX 580: In-Depth Breakdown
Performance: Radeon RX Vega 56 vs Radeon RX 580
The Radeon RX Vega 56 is dramatically faster, around 56% ahead of the Radeon RX 580. That gap is enough to move it up a tier: the Radeon RX Vega 56 is comfortable at 1080p, while the Radeon RX 580 is better matched to entry-level 1080p. The Radeon RX Vega 56 packs 3,584 stream processors versus 2,304 on the Radeon RX 580.
Price & Value
The Radeon RX 580 currently lists from $137 GBP, $349 GBP less than the Radeon RX Vega 56 at $486 GBP. Despite being slower, the Radeon RX 580 offers the better performance-per-dollar (~128% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 580 is trading below its $229 GBP MSRP — a genuine deal. The Radeon RX Vega 56 still sits about $87 GBP above its $399 GBP MSRP.
Power & Efficiency
On power, the Radeon RX 580 is the gentler choice at 185W versus 210W. The Radeon RX Vega 56 is more efficient per watt because it's faster, but its higher 210W draw means more heat and a bigger PSU.
Memory & Bandwidth
The Radeon RX Vega 56's memory is faster — 410 GB/s versus 256 GB/s (2048-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 580 or Radeon RX Vega 56?
Choose the Radeon RX Vega 56 if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 580 stretches your money further for only slightly lower performance.