GeForce RTX 4090 vs Radeon 660M
The GeForce RTX 4090 is much faster than the Radeon 660M 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
GeForce RTX 4090 has 5559% more compute power.
Pixel Fillratehelp
GeForce RTX 4090 fills pixels 1359% faster.
Texture Fillratehelp
GeForce RTX 4090 maps textures 2729% faster.
GDDR6X
Memory Typehelp
System-Shared384-bit
Memory Bushelp
System-SharedGeForce 40
Generationhelp
Navi II IGP (Rembrandt Mobile)Desktop
Segmenthelp
Integrated-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, GeForce RTX 4090 or Radeon 660M?expand_more
The GeForce RTX 4090. It's 79% faster than the Radeon 660M on average across 100+ games, scoring 77/100 vs 43/100 in our gaming rating.
speedHow much faster is GeForce RTX 4090 than Radeon 660M?expand_more
79% faster on average. The gap varies by game and resolution, check the per-game FPS comparison above.
aspect_ratioWhich is better for 1440p and 4K gaming, GeForce RTX 4090 or Radeon 660M?expand_more
The GeForce RTX 4090 is faster at both resolutions. At 4K, VRAM matters more, check the specs section to compare memory. Toggle the resolution selector above to see per-game FPS.
paidIs the GeForce RTX 4090 worth buying in 2026?expand_more
It scores 77/100 in our gaming rating, faster than most GPUs on the market. Good buy if the price is right.
differenceWhat is the difference between GeForce RTX 4090 and Radeon 660M?expand_more
Performance: GeForce RTX 4090 scores 77/100, Radeon 660M scores 43/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the GeForce RTX 4090 or Radeon 660M 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 GeForce RTX 4090 or Radeon 660M?expand_more
The GeForce RTX 4090 is the stronger pick at 77/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the GeForce RTX 4090 and Radeon 660M?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 4090 vs RTX 5070RTX 4090 vs RTX 5060 TiRTX 4090 vs RTX 5060RTX 4090 vs RTX 5070 TiRTX 4090 vs RTX 5080RTX 4090 vs RX 9070 XTRTX 4090 vs RTX 5090RTX 4090 vs RX 9060 XT 16 GBRTX 2060 vs RTX 4090GTX 1660 Ti vs RTX 4090Arc B580 vs RTX 4090GTX 1660 SUPER vs RTX 4090RTX 4090 vs RX 9070RTX 4090 vs RX 580RTX 4090 vs RX 560RTX 4090 vs RX 6900 XTGTX 1650 SUPER vs RTX 4090RTX 4090 vs RX 6800Arc A310 vs RTX 4090Arc A580 vs RTX 4090Arc A750 vs RTX 4090GT 710 vs RTX 4090RTX 4090 vs RX 7900 XTXRTX 4090 vs R7 240RTX 4090 vs R7 250Arc B570 vs RTX 4090RTX 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 580660M 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 660M660M vs RX 7900 XTX660M vs R7 240660M vs R7 250Arc B570 vs 660M