Product Compare
AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 4090
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Oct 2020 | Sep 2022 |
| Generation | Navi II | GeForce 40 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Base Clock | 1825 MHz | 2235 MHz |
| Boost Clock | 2250 MHz | 2520 MHz |
| Memory Clock | 2000 MHz | 1313 MHz |
| Memory | ||
| Memory Size | 16GB | 24GB |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bus | 256bit | 384bit |
| Bandwidth | 512.0GB/s | 1.01TB/s |
| Render Config | ||
| Compute Units | 80 | |
| Shading Units | 5120 | 16384 |
| TMUs | 320 | 512 |
| ROPs | 128 | 176 |
| RT Cores | 80 | 128 |
| L1 Cache | 128 KB per Array | 128 KB (per SM) |
| L2 Cache | 4 MB | 72 MB |
| L3 Cache | 128 MB | |
| SM Count | 128 | |
| Tensor Cores | 512 | |
| Theoretical Performance | ||
| Pixel Rate | 288.0 GPixel/s | 443.5 GPixel/s |
| Texture Rate | 720.0 GTexel/s | 1290.2 GTexel/s |
| FP16 (half) | 46.08 TFLOPS | 82.58 TFLOPS |
| FP32 (float) | 23.04 TFLOPS | 82.58 TFLOPS |
| FP64 (double) | 1440.0 GFLOPS | 1290.2 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 21 | AD102 |
| GPU Variant | Navi 21 XTX(215-121000167) | AD102-300-A1 |
| Architecture | RDNA 2.0 | Ada Lovelace |
| Foundry | TSMC | TSMC |
| Process Size | 7 nm | 5 nm |
| Transistors | 26.8 billion | 76.3 billion |
| Die Size | 520 mm² | 609 mm² |
| Board Design | ||
| TDP | 300W | 450W |
| Suggested PSU | 700 W | 850 W |
| Outputs | 1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C | 1x HDMI 2.13x DisplayPort 1.4a |
| Power Connectors | 2x 8-pin | 1x 16-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.4 | 1.4 |
| Shader Model | 6.8 | 6.8 |
| CUDA | 8.9 | |