Radeon 660M vs Radeon RX 580
The Radeon 660M is much slower than the Radeon RX 580 on average across 100+ games. We cannot compare value as at least one GPU is out of stock.
FPS Comparison Across Popular Games
Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.
Specs & Benchmark Comparison
Side-by-side specs, synthetic benchmarks, and key hardware differences.
FP32 Computehelp
Radeon RX 580 has 323% more compute power.
Texture Fillratehelp
Radeon RX 580 maps textures 323% faster.
System-Shared
Memory Typehelp
GDDR5System-Shared
Memory Bushelp
256-bitNavi II IGP (Rembrandt Mobile)
Generationhelp
Polaris (RX 500)Integrated
Segmenthelp
Desktop-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, Radeon 660M or Radeon RX 580?expand_more
Neither, they're within 1% of each other across 100+ games. Pick based on price, availability, or VRAM.
aspect_ratioWhich is better for 1440p and 4K gaming, Radeon 660M or Radeon RX 580?expand_more
They trade blows depending on the game. Toggle the resolution selector above to compare per-game FPS at 1440p and 4K.
differenceWhat is the difference between Radeon 660M and Radeon RX 580?expand_more
Performance: Radeon 660M scores 43/100, Radeon RX 580 scores 9/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the Radeon 660M or Radeon RX 580 bottleneck my PC?expand_more
Depends on the rest of your build, especially your CPU. Swap the paired CPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.
upgradeIs it worth upgrading to the Radeon 660M or Radeon RX 580?expand_more
Both are solid choices. Compare your current GPU against each one to see the exact FPS gain.
memoryDoes VRAM matter when comparing the Radeon 660M and Radeon RX 580?expand_more
Yes, more VRAM helps at higher resolutions and in modded games. Check the specs section above to compare memory capacity and bandwidth between both GPUs.
Popular Comparisons
RTX 5070 vs 660MRTX 5060 Ti vs 660MRTX 5060 vs 660MRTX 5070 Ti vs 660MRTX 5080 vs 660M660M vs RX 9070 XTRTX 5090 vs 660M660M vs RX 9060 XT 16 GBRTX 2060 vs 660MGTX 1660 Ti vs 660MArc B580 vs 660MGTX 1660 SUPER vs 660M660M vs RX 9070660M vs RX 560660M vs RX 6900 XTGTX 1650 SUPER vs 660M660M vs RX 6800Arc A310 vs 660MArc A580 vs 660MArc A750 vs 660MGT 710 vs 660MRTX 4090 vs 660M660M vs RX 7900 XTX660M vs R7 240660M vs R7 250Arc B570 vs 660MRTX 5070 vs RX 580RTX 5060 Ti vs RX 580RTX 5060 vs RX 580RTX 5070 Ti vs RX 580RTX 5080 vs RX 580RX 580 vs RX 9070 XTRTX 5090 vs RX 580RX 580 vs RX 9060 XT 16 GBRTX 2060 vs RX 580GTX 1660 Ti vs RX 580Arc B580 vs RX 580GTX 1660 SUPER vs RX 580RX 580 vs RX 9070RX 560 vs RX 580RX 580 vs RX 6900 XTGTX 1650 SUPER vs RX 580RX 580 vs RX 6800Arc A310 vs RX 580Arc A580 vs RX 580Arc A750 vs RX 580GT 710 vs RX 580RTX 4090 vs RX 580RX 580 vs RX 7900 XTXR7 240 vs RX 580R7 250 vs RX 580Arc B570 vs RX 580