amd
Brand4GB GDDR6
Memory768
Cores128 GB/s
BandwidthAMD Radeon RX 6400
amd
Brand20GB GDDR6
Memory5376
Cores800 GB/s
BandwidthAMD Radeon RX 7900 XT
AMD Radeon RX 6400
Radeon RX 6400
$159 • Jan 2022
Radeon RX 7900 XT
$899 • Nov 2022
AMD Radeon RX 7900 XT
Specs Comparison
| Specification | AMD Radeon RX 6400 | AMD Radeon RX 7900 XT |
|---|---|---|
| Memory Size | 4 GB | 20 GB |
| Memory Type | GDDR6 | GDDR6 |
| TDP | 53 W | 300 W |
| Core Clock | N/A | N/A |
| Boost Clock | 2321 MHz | 2394 MHz |
| Memory Bandwidth | 128 GB/s | 800 GB/s |
| Process Size | 6nm | 5nm |
| Architecture | RDNA 2.0 | RDNA 3.0 |
| Shading Units | 768 | 5376 |
| RT Cores | 12 | 84 |
| TMUs | 48 | 336 |
| ROPs | 32 | 192 |
| Memory Bus | 64-bit | 320-bit |
| Memory Clock | 2000 MHz | 2500 MHz |
| Pixel Rate | 74.27 GPixel/s | 459.6 GPixel/s |
| Texture Rate | 128 GTexel/s | 800 GTexel/s |
| FP32 Performance | 3.565 GFLOPS | 51.48 GFLOPS |
| L2 Cache | 1.00 MB | 6.00 MB |
| Die Size | 107 mm² | 529 mm² |
| Transistors | 5400 Million | 57700 Million |
| Required PSU | 250 W | 700 W |
| Power Connectors | None | 2x 8-pin |
| Bus Interface | PCIe 4.0 x4 | 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
AMD Radeon RX 6400
AMD Radeon RX 7900 XT
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon RX 6400
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)
AMD Radeon RX 6400
AMD Radeon RX 7900 XT
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon RX 6400
AMD Radeon RX 7900 XT
Game Benchmarks Comparison
No game benchmarks available for this combination of GPUs yet.
We're working on collecting performance data for this combination of GPUs. Please check back later.
AMD Radeon RX 7900 XT Wins!
Based on 4 synthetic benchmarks
AMD Radeon RX 6400
AMD • 4GB GDDR6
AMD Radeon RX 7900 XT
AMD • 20GB GDDR6
Most Compared GPUs
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