Product Compare
AMD Radeon R9 390 vs AMD Radeon RX 7900 XT
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jun 2015 | Nov 2022 |
| Generation | Pirate Islands | Navi III |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1500 MHz | 2500 MHz |
| Base Clock | 1387 MHz | |
| Boost Clock | 2394 MHz | |
| Memory | ||
| Memory Size | 8GB | 20GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bus | 512bit | 320bit |
| Bandwidth | 384.0GB/s | 800.0GB/s |
| Render Config | ||
| Compute Units | 40 | 84 |
| Shading Units | 2560 | 5376 |
| TMUs | 160 | 336 |
| ROPs | 64 | 192 |
| L1 Cache | 16 KB (per CU) | 256 KB per Array |
| L2 Cache | 1024 KB | 6 MB |
| RT Cores | 84 | |
| L3 Cache | 80 MB | |
| Theoretical Performance | ||
| Pixel Rate | 64.00 GPixel/s | 459.6 GPixel/s |
| Texture Rate | 160.0 GTexel/s | 804.4 GTexel/s |
| FP32 (float) | 5.120 TFLOPS | 51.48 TFLOPS |
| FP64 (double) | 640.0 GFLOPS | 1.609 TFLOPS |
| FP16 (half) | 103.0 TFLOPS | |
| Graphics Processor | ||
| GPU Name | Grenada | Navi 31 |
| GPU Variant | Grenada PRO(215-0880030) | Navi 31 XT(215-145000156) |
| Architecture | GCN 2.0 | RDNA 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 5 nm |
| Transistors | 6.2 billion | 57.7 billion |
| Die Size | 438 mm² | 529 mm² |
| Board Design | ||
| TDP | 275W | 300W |
| Suggested PSU | 600 W | 700 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C |
| Power Connectors | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.2 |
| Vulkan | 1.2 | 1.3 |
| Shader Model | 6.3 | 6.8 |
| Benchmarks | ||
| 3DMark Time Spy | 3964 | 26829 |
| 3DMark Time Spy Extreme | 1931 | 13130 |