AMD Radeon RX 6600 XT VS AMD Radeon RX 7900 XT
amd
Brand8GB GDDR6
Memory2048
Cores256 GB/s
BandwidthRadeon RX 6600 XT
VS
amd
Brand20GB GDDR6
Memory5376
Cores800 GB/s
BandwidthRadeon RX 7900 XT
AMD Radeon RX 6600 XT
8GB GDDR6 160W $299.99 Jul 2021
Radeon RX 6600 XT
$379 • Jul 2021
VS
Radeon RX 7900 XT
$899 • Nov 2022
AMD Radeon RX 7900 XT
20GB GDDR6 300W $580.61 Nov 2022
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Specs Comparison
| Specification | AMD Radeon RX 6600 XT | AMD Radeon RX 7900 XT |
|---|---|---|
| Memory Size | 8 GB | 20 GB |
| Memory Type | GDDR6 | GDDR6 |
| TDP | 160 W | 300 W |
| Core Clock | N/A | N/A |
| Boost Clock | 2589 MHz | 2394 MHz |
| Memory Bandwidth | 256 GB/s | 800 GB/s |
| Process Size | 7nm | 5nm |
| Architecture | RDNA 2.0 | RDNA 3.0 |
| Shading Units | 2048 | 5376 |
| RT Cores | 32 | 84 |
| TMUs | 128 | 336 |
| ROPs | 64 | 192 |
| Memory Bus | 128-bit | 320-bit |
| Memory Clock | 2000 MHz | 2500 MHz |
| Pixel Rate | 165.7 GPixel/s | 459.6 GPixel/s |
| Texture Rate | 256 GTexel/s | 800 GTexel/s |
| FP32 Performance | 10.6 GFLOPS | 51.48 GFLOPS |
| L2 Cache | 2.00 MB | 6.00 MB |
| Die Size | 237 mm² | 529 mm² |
| Transistors | 11060 Million | 57700 Million |
| Required PSU | 450 W | 700 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Bus Interface | PCIe 4.0 x8 | 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
9026
AMD Radeon RX 6600 XT
24671 (+173%)
AMD Radeon RX 7900 XT
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
84088
AMD Radeon RX 6600 XT
203754 (+142%)
AMD Radeon RX 7900 XT
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
116.8 FPS
AMD Radeon RX 6600 XT
323.2 FPS (+177%)
AMD Radeon RX 7900 XT
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
16474
AMD Radeon RX 6600 XT
28872 (+75%)
AMD Radeon RX 7900 XT
Game Benchmarks Comparison (252 benchmarks)
Split Fiction
8.7 2025 • Action, Adventure Hazelight Studios
1080p
| ultra
Radeon RX 7900 XT (+137%)
AVG 185 FPS
MIN 162 FPS
Radeon RX 6600 XT
AVG 78 FPS
MIN 66 FPS
1440p
| ultra
Radeon RX 7900 XT (+148%)
AVG 144 FPS
MIN 122 FPS
Radeon RX 6600 XT
AVG 58 FPS
MIN 48 FPS
2160p
| ultra
Radeon RX 7900 XT (+167%)
AVG 88 FPS
MIN 74 FPS
Radeon RX 6600 XT
AVG 33 FPS
MIN 28 FPS
Winner
Loser
Marvel's Spider-Man 2
7.9 2025 • Action, Adventure Insomniac Games, Nixxes Software
1080p
| ultra
Radeon RX 7900 XT (+154%)
AVG 127 FPS
MIN 112 FPS
Radeon RX 6600 XT
AVG 50 FPS
MIN 38 FPS
1440p
| ultra
Radeon RX 7900 XT (+231%)
AVG 106 FPS
MIN 94 FPS
Radeon RX 6600 XT
AVG 32 FPS
MIN 27 FPS
2160p
| ultra
Radeon RX 7900 XT (+278%)
AVG 68 FPS
MIN 61 FPS
Radeon RX 6600 XT
AVG 18 FPS
MIN 14 FPS
1080p
| ultra
| RTX
Radeon RX 7900 XT (+300%)
AVG 52 FPS
MIN 44 FPS
Radeon RX 6600 XT
AVG 13 FPS
MIN 10 FPS
1440p
| ultra
| RTX
Radeon RX 7900 XT (+367%)
AVG 42 FPS
MIN 36 FPS
Radeon RX 6600 XT
AVG 9 FPS
MIN 6 FPS
2160p
| ultra
| RTX
Radeon RX 7900 XT (+800%)
AVG 27 FPS
MIN 22 FPS
Radeon RX 6600 XT
AVG 3 FPS
MIN 2 FPS
Winner
Loser
Sniper Elite Resistance
8.5 2025 • Action, Adventure Rebellion
1080p
| ultra
Radeon RX 7900 XT (+117%)
AVG 215 FPS
MIN 192 FPS
Radeon RX 6600 XT
AVG 99 FPS
MIN 82 FPS
1440p
| ultra
Radeon RX 7900 XT (+132%)
AVG 172 FPS
MIN 152 FPS
Radeon RX 6600 XT
AVG 74 FPS
MIN 64 FPS
2160p
| ultra
Radeon RX 7900 XT (+161%)
AVG 107 FPS
MIN 95 FPS
Radeon RX 6600 XT
AVG 41 FPS
MIN 33 FPS
Winner
Loser
FINAL FANTASY VII REBIRTH
8.1 2025 • Action, Adventure, RPG Square Enix
1080p
| ultra
Radeon RX 7900 XT (+165%)
AVG 114 FPS
MIN 99 FPS
Radeon RX 6600 XT
AVG 43 FPS
MIN 37 FPS
1440p
| ultra
Radeon RX 7900 XT (+164%)
AVG 95 FPS
MIN 81 FPS
Radeon RX 6600 XT
AVG 36 FPS
MIN 30 FPS
2160p
| ultra
Radeon RX 7900 XT (+195%)
AVG 62 FPS
MIN 53 FPS
Radeon RX 6600 XT
AVG 21 FPS
MIN 18 FPS
Winner
Loser
Assetto Corsa EVO
6 2025 • Racing, Simulation, Sports, Early Access KUNOS Simulazioni
1080p
| ultra
Radeon RX 7900 XT (+392%)
AVG 64 FPS
MIN 56 FPS
Radeon RX 6600 XT
AVG 13 FPS
MIN 10 FPS
1440p
| ultra
Radeon RX 7900 XT (+375%)
AVG 57 FPS
MIN 50 FPS
Radeon RX 6600 XT
AVG 12 FPS
MIN 9 FPS
2160p
| ultra
Radeon RX 7900 XT (+300%)
AVG 40 FPS
MIN 33 FPS
Radeon RX 6600 XT
AVG 10 FPS
MIN 8 FPS
Winner
Loser
DYNASTY WARRIORS ORIGINS
8.6 2025 • Action, RPG, Strategy KOEI TECMO GAMES CO., LTD.
1080p
| ultra
Radeon RX 7900 XT (+152%)
AVG 237 FPS
MIN 209 FPS
Radeon RX 6600 XT
AVG 94 FPS
MIN 84 FPS
1440p
| ultra
Radeon RX 7900 XT (+178%)
AVG 178 FPS
MIN 161 FPS
Radeon RX 6600 XT
AVG 64 FPS
MIN 52 FPS
2160p
| ultra
Radeon RX 7900 XT (+185%)
AVG 97 FPS
MIN 87 FPS
Radeon RX 6600 XT
AVG 34 FPS
MIN 31 FPS
Winner
Loser
No more benchmarks available for this comparison
AMD Radeon RX 7900 XT Wins!
Based on 252 benchmarks across 76 games
37
Avg FPS
Radeon RX 6600 XT
VS
+172.6%
102
Avg FPS
Radeon RX 7900 XT
AMD Radeon RX 6600 XT
AMD • 8GB GDDR6
0
Wins
37
Avg FPS
31
Min FPS
0%
Win Rate
AMD Radeon RX 7900 XT
AMD • 20GB GDDR6
251
Wins
102
Avg FPS
88
Min FPS
100%
Win Rate
Where to Buy
Compare with Similar GPUs
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