amd
Brand4GB GDDR6
Memory768
Cores128 GB/s
BandwidthAMD Radeon RX 6400
amd
Brand16GB GDDR6
Memory5120
Cores512 GB/s
BandwidthAMD Radeon RX 6900 XT
AMD Radeon RX 6400
Radeon RX 6400
$159 • Jan 2022
Radeon RX 6900 XT
$999 • Oct 2020
AMD Radeon RX 6900 XT
Specs Comparison
| Specification | AMD Radeon RX 6400 | AMD Radeon RX 6900 XT |
|---|---|---|
| Memory Size | 4 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| TDP | 53 W | 300 W |
| Core Clock | N/A | N/A |
| Boost Clock | 2321 MHz | 2250 MHz |
| Memory Bandwidth | 128 GB/s | 512 GB/s |
| Process Size | 6nm | 7nm |
| Architecture | RDNA 2.0 | RDNA 2.0 |
| Shading Units | 768 | 5120 |
| RT Cores | 12 | 80 |
| TMUs | 48 | 320 |
| ROPs | 32 | 128 |
| Memory Bus | 64-bit | 256-bit |
| Memory Clock | 2000 MHz | 2000 MHz |
| Pixel Rate | 74.27 GPixel/s | 288 GPixel/s |
| Texture Rate | 128 GTexel/s | 512 GTexel/s |
| FP32 Performance | 3.565 GFLOPS | 23.04 GFLOPS |
| L2 Cache | 1.00 MB | 4.00 MB |
| Die Size | 107 mm² | 520 mm² |
| Transistors | 5400 Million | 26800 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 6900 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 6900 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 6900 XT
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon RX 6400
AMD Radeon RX 6900 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 6900 XT Wins!
Based on 4 synthetic benchmarks
AMD Radeon RX 6400
AMD • 4GB GDDR6
AMD Radeon RX 6900 XT
AMD • 16GB GDDR6
Most Compared GPUs
Comments & Discussion
Share your thoughts and experiences