GeForce GTX 660 vs Radeon RX 7900 XTX
The GeForce GTX 660 is much slower than the Radeon RX 7900 XTX 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 7900 XTX has 2999% more compute power.
Pixel Fillratehelp
Radeon RX 7900 XTX fills pixels 2224% faster.
Texture Fillratehelp
Radeon RX 7900 XTX maps textures 1062% faster.
Memory Bandwidthhelp
Radeon RX 7900 XTX moves data 566% faster.
GDDR5
Memory Typehelp
GDDR6192-bit
Memory Bushelp
384-bitGeForce 600
Generationhelp
Navi III (RX 7000)Desktop
Segmenthelp
Desktop-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, GeForce GTX 660 or Radeon RX 7900 XTX?expand_more
The Radeon RX 7900 XTX. It's 3150% faster than the GeForce GTX 660 on average across 100+ games, scoring 65/100 vs 2/100 in our gaming rating.
speedHow much faster is Radeon RX 7900 XTX than GeForce GTX 660?expand_more
3150% 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 GTX 660 or Radeon RX 7900 XTX?expand_more
The Radeon RX 7900 XTX 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 Radeon RX 7900 XTX worth buying in 2026?expand_more
It scores 65/100 in our gaming rating, faster than most GPUs on the market. Good buy if the price is right.
differenceWhat is the difference between GeForce GTX 660 and Radeon RX 7900 XTX?expand_more
Performance: GeForce GTX 660 scores 2/100, Radeon RX 7900 XTX scores 65/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the GeForce GTX 660 or Radeon RX 7900 XTX 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 GTX 660 or Radeon RX 7900 XTX?expand_more
The Radeon RX 7900 XTX is the stronger pick at 65/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the GeForce GTX 660 and Radeon RX 7900 XTX?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
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