Product Compare
AMD Radeon RX 7900 GRE vs AMD Radeon R9 M485X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jul 2023 | May 2016 |
| Generation | Navi III | Crystal System |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 4.0 x16 | MXM-B (3.0) |
| Clock Speeds | ||
| Base Clock | 1287 MHz | |
| Boost Clock | 2245 MHz | |
| Memory Clock | 2250 MHz | 1250 MHz |
| Memory | ||
| Memory Size | 16GB | 8GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 576.0GB/s | 160.0GB/s |
| Render Config | ||
| Compute Units | 80 | 32 |
| Shading Units | 5120 | 2048 |
| TMUs | 320 | 128 |
| ROPs | 160 | 32 |
| RT Cores | 80 | |
| L1 Cache | 256 KB per Array | 16 KB (per CU) |
| L2 Cache | 6 MB | 512 KB |
| L3 Cache | 64 MB | |
| Theoretical Performance | ||
| Pixel Rate | 359.2 GPixel/s | 23.14 GPixel/s |
| Texture Rate | 718.4 GTexel/s | 92.54 GTexel/s |
| FP16 (half) | 91.96 TFLOPS | 2.961 TFLOPS |
| FP32 (float) | 45.98 TFLOPS | 2.961 TFLOPS |
| FP64 (double) | 1436.8 GFLOPS | 185.1 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 31 | Amethyst |
| GPU Variant | Navi 31 XL(215-145000206) | Amethyst XT |
| Architecture | RDNA 3.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 28 nm |
| Transistors | 57.7 billion | 5 billion |
| Die Size | 529 mm² | 366 mm² |
| Board Design | ||
| TDP | 260W | 250W |
| Suggested PSU | 600 W | |
| Outputs | 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C | No outputs |
| Power Connectors | 2x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.2 | 2.0 |
| Vulkan | 1.3 | 1.2 |
| Shader Model | 6.8 | 6.3 |