GeForce RTX 4080 Mobile vs Radeon RX 6900 XT
The GeForce RTX 4080 Mobile is slightly slower than the Radeon RX 6900 XT 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.
Scorehelp
GeForce RTX 4080 Mobile ranks 31 points higher.
FP32 Computehelp
GeForce RTX 4080 Mobile has 7% more compute power.
Pixel Fillratehelp
Radeon RX 6900 XT fills pixels 116% faster.
Texture Fillratehelp
Radeon RX 6900 XT maps textures 86% faster.
Memory Bandwidthhelp
Radeon RX 6900 XT moves data 19% faster.
TDPhelp
GeForce RTX 4080 Mobile draws 190W less power.
GDDR6
Memory Typehelp
GDDR6192-bit
Memory Bushelp
256-bitGeForce 40 Mobile
Generationhelp
Navi II (RX 6000)Mobile
Segmenthelp
Desktop-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, GeForce RTX 4080 Mobile or Radeon RX 6900 XT?expand_more
The Radeon RX 6900 XT. It's 70% faster than the GeForce RTX 4080 Mobile on average across 100+ games, scoring 44/100 vs 75/100 in our gaming rating.
speedHow much faster is Radeon RX 6900 XT than GeForce RTX 4080 Mobile?expand_more
70% 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 4080 Mobile or Radeon RX 6900 XT?expand_more
The Radeon RX 6900 XT 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 6900 XT worth buying in 2026?expand_more
It scores 44/100 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 4080 Mobile and Radeon RX 6900 XT?expand_more
Performance: GeForce RTX 4080 Mobile scores 75/100, Radeon RX 6900 XT scores 44/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the GeForce RTX 4080 Mobile or Radeon RX 6900 XT 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 4080 Mobile or Radeon RX 6900 XT?expand_more
The Radeon RX 6900 XT is the stronger pick at 44/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the GeForce RTX 4080 Mobile and Radeon RX 6900 XT?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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