AMD Radeon RX 6900 XT VS NVIDIA GeForce RTX 4090
amd
Brand16GB GDDR6
Memory5120
Cores512 GB/s
BandwidthRadeon RX 6900 XT
VS
nvidia
Brand24GB GDDR6X
Memory16384
Cores1010 GB/s
BandwidthGeForce RTX 4090
AMD Radeon RX 6900 XT
16GB GDDR6 300W $499.99 Oct 2020
Radeon RX 6900 XT
$999 • Oct 2020
VS
GeForce RTX 4090
$1599 • Sep 2022
NVIDIA GeForce RTX 4090
24GB GDDR6X 450W $2,591.99 Sep 2022
Specs Comparison
| Specification | AMD Radeon RX 6900 XT | NVIDIA GeForce RTX 4090 |
|---|---|---|
| Memory Size | 16 GB | 24 GB |
| Memory Type | GDDR6 | GDDR6X |
| TDP | 300 W | 450 W |
| Core Clock | N/A | N/A |
| Boost Clock | 2250 MHz | 2520 MHz |
| Memory Bandwidth | 512 GB/s | 1010 GB/s |
| Process Size | 7nm | 5nm |
| Architecture | RDNA 2.0 | Ada Lovelace |
| Shading Units | 5120 | 16384 |
| RT Cores | 80 | 128 |
| TMUs | 320 | 512 |
| ROPs | 128 | 176 |
| Memory Bus | 256-bit | 384-bit |
| Memory Clock | 2000 MHz | 1313 MHz |
| Pixel Rate | 288 GPixel/s | 443.5 GPixel/s |
| Texture Rate | 512 GTexel/s | 1.01 GTexel/s |
| FP32 Performance | 23.04 GFLOPS | 82.58 GFLOPS |
| L2 Cache | 4.00 MB | 72.00 MB |
| Die Size | 520 mm² | 609 mm² |
| Transistors | 26800 Million | 76300 Million |
| Required PSU | 700 W | 850 W |
| Power Connectors | 2x 8-pin | 1x 16-pin |
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| DirectX | 12.2 | 12.2 |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Foundry | TSMC | TSMC |
Comparison in Synthetic Benchmarks
3DMark Time Spy
Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads
Graphics Score
20261
AMD Radeon RX 6900 XT
42193 (+108%)
NVIDIA GeForce RTX 4090
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
124121
AMD Radeon RX 6900 XT
316301 (+155%)
NVIDIA GeForce RTX 4090
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
305.2 FPS
AMD Radeon RX 6900 XT
615.9 FPS (+102%)
NVIDIA GeForce RTX 4090
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
26744
AMD Radeon RX 6900 XT
38309 (+43%)
NVIDIA GeForce RTX 4090
Game Benchmarks Comparison (660 benchmarks)
Phantom Blade Zero
7.7 2026 • Action, RPG S-GAME Studio
1080p
| ultra
GeForce RTX 4090 (+126%)
AVG 113 FPS
MIN 94 FPS
Radeon RX 6900 XT
AVG 50 FPS
MIN 43 FPS
1440p
| ultra
GeForce RTX 4090 (+159%)
AVG 88 FPS
MIN 74 FPS
Radeon RX 6900 XT
AVG 34 FPS
MIN 28 FPS
2160p
| ultra
GeForce RTX 4090 (+189%)
AVG 55 FPS
MIN 45 FPS
Radeon RX 6900 XT
AVG 19 FPS
MIN 14 FPS
1080p
| ultra
| RTX
GeForce RTX 4090 (+188%)
AVG 95 FPS
MIN 83 FPS
Radeon RX 6900 XT
AVG 33 FPS
MIN 28 FPS
1440p
| ultra
| RTX
GeForce RTX 4090 (+217%)
AVG 73 FPS
MIN 64 FPS
Radeon RX 6900 XT
AVG 23 FPS
MIN 17 FPS
2160p
| ultra
| RTX
GeForce RTX 4090 (+300%)
AVG 44 FPS
MIN 36 FPS
Radeon RX 6900 XT
AVG 11 FPS
MIN 9 FPS
Winner
Loser
.jpg?w=200&fit=cover)
Valor Mortis
8.2 2026 • Action, Adventure, RPG One More Level
1080p
| ultra
| RTX
GeForce RTX 4090 (+74%)
AVG 113 FPS
MIN 102 FPS
Radeon RX 6900 XT
AVG 65 FPS
MIN 61 FPS
1440p
| ultra
| RTX
GeForce RTX 4090 (+93%)
AVG 83 FPS
MIN 74 FPS
Radeon RX 6900 XT
AVG 43 FPS
MIN 40 FPS
2160p
| ultra
| RTX
GeForce RTX 4090 (+104%)
AVG 49 FPS
MIN 45 FPS
Radeon RX 6900 XT
AVG 24 FPS
MIN 22 FPS
Winner
Loser
The Witcher 3: Wild Hunt — Remastered
7.5 2026 • Action, RPG CD PROJEKT RED
1080p
| ultra
| RTX
GeForce RTX 4090 (+143%)
AVG 102 FPS
MIN 91 FPS
Radeon RX 6900 XT
AVG 42 FPS
MIN 38 FPS
1440p
| ultra
| RTX
GeForce RTX 4090 (+139%)
AVG 74 FPS
MIN 66 FPS
Radeon RX 6900 XT
AVG 31 FPS
MIN 28 FPS
2160p
| ultra
| RTX
GeForce RTX 4090 (+175%)
AVG 44 FPS
MIN 40 FPS
Radeon RX 6900 XT
AVG 16 FPS
MIN 15 FPS
Winner
Loser
SILENT HILL: Townfall
7.5 2026 • Action, Adventure Screen Burn
1080p
| ultra
GeForce RTX 4090 (+81%)
AVG 159 FPS
MIN 133 FPS
Radeon RX 6900 XT
AVG 88 FPS
MIN 81 FPS
1440p
| ultra
GeForce RTX 4090 (+93%)
AVG 116 FPS
MIN 100 FPS
Radeon RX 6900 XT
AVG 60 FPS
MIN 55 FPS
2160p
| ultra
GeForce RTX 4090 (+113%)
AVG 66 FPS
MIN 61 FPS
Radeon RX 6900 XT
AVG 31 FPS
MIN 29 FPS
1080p
| ultra
GeForce RTX 4090 (+81%)
AVG 159 FPS
MIN 133 FPS
Radeon RX 6900 XT
AVG 88 FPS
MIN 81 FPS
1440p
| ultra
GeForce RTX 4090 (+93%)
AVG 116 FPS
MIN 100 FPS
Radeon RX 6900 XT
AVG 60 FPS
MIN 55 FPS
2160p
| ultra
GeForce RTX 4090 (+113%)
AVG 66 FPS
MIN 61 FPS
Radeon RX 6900 XT
AVG 31 FPS
MIN 29 FPS
Winner
Loser
CONTROL Resonant
7.2 2026 • Action, Adventure, RPG Remedy Entertainment
1080p
| ultra
GeForce RTX 4090 (+119%)
AVG 153 FPS
MIN 136 FPS
Radeon RX 6900 XT
AVG 70 FPS
MIN 63 FPS
1440p
| ultra
GeForce RTX 4090 (+120%)
AVG 110 FPS
MIN 101 FPS
Radeon RX 6900 XT
AVG 50 FPS
MIN 46 FPS
2160p
| ultra
GeForce RTX 4090 (+129%)
AVG 64 FPS
MIN 57 FPS
Radeon RX 6900 XT
AVG 28 FPS
MIN 25 FPS
Winner
Loser
The Blood of Dawnwalker
7 2026 • Action, Adventure, RPG Rebel Wolves
1080p
| ultra
GeForce RTX 4090 (+64%)
AVG 77 FPS
MIN 69 FPS
Radeon RX 6900 XT
AVG 47 FPS
MIN 43 FPS
1440p
| ultra
GeForce RTX 4090 (+86%)
AVG 65 FPS
MIN 59 FPS
Radeon RX 6900 XT
AVG 35 FPS
MIN 30 FPS
2160p
| ultra
GeForce RTX 4090 (+91%)
AVG 42 FPS
MIN 38 FPS
Radeon RX 6900 XT
AVG 22 FPS
MIN 20 FPS
Winner
Loser
No more benchmarks available for this comparison
NVIDIA GeForce RTX 4090 Wins!
Based on 663 benchmarks across 184 games
71
Avg FPS
Radeon RX 6900 XT
VS
+81%
128
Avg FPS
GeForce RTX 4090
AMD Radeon RX 6900 XT
AMD • 16GB GDDR6
3
Wins
71
Avg FPS
60
Min FPS
0%
Win Rate
NVIDIA GeForce RTX 4090
NVIDIA • 24GB GDDR6X
650
Wins
128
Avg FPS
110
Min FPS
98%
Win Rate
Where to Buy
Compare with Similar GPUs
Comments & Discussion
Share your thoughts and experiences
Loading comments...