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GPU Comparison: FPS, Specs & Value

Radeon R9 M390X vs Radeon RX 6800

The Radeon R9 M390X is much slower than the Radeon RX 6800 on average across 100+ games. We cannot compare value as at least one GPU is out of stock.

  • Up to 630% faster on average across 100+ games
  • Is 5 years and 7 months newer
  • Available for $449.99

FPS Comparison Across Popular Games

Specs & Benchmark Comparison

Scorehelp

Radeon RX 6800 ranks 26 points higher.

FP32 Computehelp
AMD Radeon R9 M390X Logo
Radeon R9 M390X
2961 TFLOPS
AMD Radeon RX 6800 Logo
Radeon RX 6800
16170.000000000002 TFLOPS

Radeon RX 6800 has 446% more compute power.

Pixel Fillratehelp
AMD Radeon R9 M390X Logo
Radeon R9 M390X
23.14 GP/s
AMD Radeon RX 6800 Logo
Radeon RX 6800
202.1 GP/s

Radeon RX 6800 fills pixels 773% faster.

Texture Fillratehelp
AMD Radeon R9 M390X Logo
Radeon R9 M390X
92.54 GT/s
AMD Radeon RX 6800 Logo
Radeon RX 6800
505.2 GT/s

Radeon RX 6800 maps textures 446% faster.

VRAMhelp

Radeon RX 6800 has 12 GB more VRAM.

Memory Bandwidthhelp

Radeon RX 6800 moves data 220% faster.

TDPhelp

Radeon R9 M390X draws 175W less power.

GDDR5
Memory Typehelp
GDDR6
256-bit
Memory Bushelp
256-bit
Gem System (R9 M300)
Generationhelp
Navi II (RX 6000)
Mobile
Segmenthelp
Desktop
-
Power Connectorshelp
-
-
Outputshelp
-

Frequently Asked Questions

compare_arrowsWhich is better, Radeon R9 M390X or Radeon RX 6800?expand_more
The Radeon RX 6800. It's 325% faster than the Radeon R9 M390X on average across 100+ games, scoring 34/100 vs 8/100 in our gaming rating.
speedHow much faster is Radeon RX 6800 than Radeon R9 M390X?expand_more
325% 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 R9 M390X or Radeon RX 6800?expand_more
The Radeon RX 6800 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 6800 worth buying in 2026?expand_more
It scores 34/100 in our gaming rating, faster than most GPUs on the market. Good buy if the price is right.
differenceWhat is the difference between Radeon R9 M390X and Radeon RX 6800?expand_more
Performance: Radeon R9 M390X scores 8/100, Radeon RX 6800 scores 34/100. They also differ in VRAM, memory bandwidth, power draw, and compute performance. Full breakdown in the specs section above.
compressWill the Radeon R9 M390X or Radeon RX 6800 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 R9 M390X or Radeon RX 6800?expand_more
The Radeon RX 6800 is the stronger pick at 34/100. Compare your current GPU against it to see the exact FPS gain across 100+ games.
memoryDoes VRAM matter when comparing the Radeon R9 M390X and Radeon RX 6800?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.

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