Product Compare
AMD Radeon R9 390 X2 vs NVIDIA A40 PCIe
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2015 | Oct 2020 |
| Generation | Pirate Islands | Tesla |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1350 MHz | 1812 MHz |
| Base Clock | 1305 MHz | |
| Boost Clock | 1740 MHz | |
| Memory | ||
| Memory Size | 8GB | 48GB |
| Memory Type | GDDR5 | GDDR6 |
| Memory Bus | 512bit | 384bit |
| Bandwidth | 345.6GB/s | 695.8GB/s |
| Render Config | ||
| Compute Units | 40 | |
| Shading Units | 2560 | 10752 |
| TMUs | 160 | 336 |
| ROPs | 64 | 112 |
| L1 Cache | 16 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 1024 KB | 6 MB |
| SM Count | 84 | |
| Tensor Cores | 336 | |
| RT Cores | 84 | |
| Theoretical Performance | ||
| Pixel Rate | 64.00 GPixel/s | 194.9 GPixel/s |
| Texture Rate | 160.0 GTexel/s | 584.6 GTexel/s |
| FP32 (float) | 5.120 TFLOPS | 37.42 TFLOPS |
| FP64 (double) | 640.0 GFLOPS | 584.6 GFLOPS |
| FP16 (half) | 37.42 TFLOPS | |
| Graphics Processor | ||
| GPU Name | Grenada | GA102 |
| GPU Variant | Grenada PRO(215-0880030) | |
| Architecture | GCN 2.0 | Ampere |
| Foundry | TSMC | Samsung |
| Process Size | 28 nm | 8 nm |
| Transistors | 6.2 billion | 28.3 billion |
| Die Size | 438 mm² | 628 mm² |
| Board Design | ||
| TDP | 580W | 300W |
| Suggested PSU | 950 W | 700 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 3x DisplayPort 1.4a |
| Power Connectors | 4x 8-pin | 8-pin EPS |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.3 |
| Shader Model | 6.3 | 6.6 |
| CUDA | 8.6 | |