Rust
4K@165Hz·05:13 played
LiamLewis·1h ago
Public
261
FPSAverage
204
FPS1% Low
76%/45°C
77%/48°C
32 GB
72%usage
Radeon RX 6400 vs GeForce RTX 4090
The Radeon RX 6400 is much slower than the GeForce RTX 4090 on average across 100+ games and it's also a worse value for money, as it's only $3,030.00 cheaper!
Radeon RX 64007% Score
- Up to 906% cheaper – $465.00 vs $3,495.00
GeForce RTX 409077% Score
- Up to 914% faster on average across 100+ games
- Is 8 months newer
- Up to 1% better value for money
- Up to 906% more expensive – $3,495.00 vs $465.00
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 2216% more compute power.
Pixel Fillratehelp
GeForce RTX 4090 fills pixels 497% faster.
Texture Fillratehelp
GeForce RTX 4090 maps textures 1058% faster.
Memory Bandwidthhelp
GeForce RTX 4090 moves data 689% faster.
GDDR6
Memory Typehelp
GDDR6X64-bit
Memory Bushelp
384-bitNavi II (RX 6000)
Generationhelp
GeForce 40Desktop
Segmenthelp
Desktop-
Power Connectorshelp
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Outputshelp
-Frequently Asked Questions
compare_arrowsWhich is better, Radeon RX 6400 or GeForce RTX 4090?expand_more
The GeForce RTX 4090. It's 1000% faster than the Radeon RX 6400 on average across 100+ games, scoring 77/100 vs 7/100 in our gaming rating.
speedHow much faster is GeForce RTX 4090 than Radeon RX 6400?expand_more
1000% 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, Radeon RX 6400 or GeForce RTX 4090?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 Radeon RX 6400 and GeForce RTX 4090?expand_more
Performance: Radeon RX 6400 scores 7/100, GeForce RTX 4090 scores 77/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the Radeon RX 6400 or GeForce RTX 4090 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 RX 6400 or GeForce RTX 4090?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 Radeon RX 6400 and GeForce RTX 4090?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
RX 6400 vs RTX 5070RX 6400 vs RTX 5060 TiRX 6400 vs RTX 5060RX 6400 vs RTX 5070 TiRX 6400 vs RTX 5080RX 6400 vs RX 9070 XTRX 6400 vs RTX 5090RX 6400 vs RX 9060 XT 16 GBRX 6400 vs GTX 1660 TiRX 6400 vs Arc B580RX 6400 vs GTX 1660 SUPERRX 6400 vs RX 7600RX 6400 vs RTX 3080RX 6400 vs RX 9070RX 6400 vs RX 7700 XTRX 6400 vs RX 580RX 6400 vs RX 7900 XTRX 6400 vs RX 6900 XTRX 6400 vs RX 6800RX 6400 vs Arc A310RX 6400 vs Arc A580RX 6400 vs Arc B570RX 6400 vs RX 480RX 6400 vs RX 7800 XTRX 6400 vs RX 7900 XTXRX 6400 vs R7 240RX 6400 vs R7 250RTX 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 4090 vs GTX 1660 TiRTX 4090 vs Arc B580RTX 4090 vs GTX 1660 SUPERRTX 4090 vs RX 7600RTX 4090 vs RTX 3080RTX 4090 vs RX 9070RTX 4090 vs RX 7700 XTRTX 4090 vs RX 580RTX 4090 vs RX 7900 XTRTX 4090 vs RX 6900 XTRTX 4090 vs RX 6800RTX 4090 vs Arc A310RTX 4090 vs Arc A580RTX 4090 vs Arc B570RTX 4090 vs RX 480RTX 4090 vs RX 7800 XTRTX 4090 vs RX 7900 XTXRTX 4090 vs R7 240RTX 4090 vs R7 250