Product Compare
AMD Radeon HD 6990 vs NVIDIA RTX PRO 4000 Blackwell
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Mar 2011 | Mar 2025 |
| Generation | Northern Islands | Blackwell PRO W |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 2.0 x16 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1250 MHz | 1750 MHz |
| Base Clock | 1230 MHz | |
| Boost Clock | 2055 MHz | |
| Memory | ||
| Memory Size | 2GB | 24GB |
| Memory Type | GDDR5 | GDDR7 |
| Memory Bus | 256bit | 192bit |
| Bandwidth | 160.0GB/s | 672.0GB/s |
| Render Config | ||
| Compute Units | 24 | |
| Shading Units | 1536 | 8960 |
| TMUs | 96 | 280 |
| ROPs | 32 | 96 |
| L1 Cache | 8 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 512 KB | 48 MB |
| SM Count | 70 | |
| Tensor Cores | 280 | |
| RT Cores | 70 | |
| Theoretical Performance | ||
| Pixel Rate | 26.56 GPixel/s | 197.3 GPixel/s |
| Texture Rate | 79.68 GTexel/s | 575.4 GTexel/s |
| FP32 (float) | 2.550 TFLOPS | 36.83 TFLOPS |
| FP64 (double) | 637.4 GFLOPS | 575.4 GFLOPS |
| FP16 (half) | 36.83 TFLOPS | |
| Graphics Processor | ||
| GPU Name | Antilles | GB203 |
| GPU Variant | Antilles XT(215-0807027) | |
| Architecture | TeraScale 3 | Blackwell 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 5 nm |
| Transistors | 2.64 billion | 45.6 billion |
| Die Size | 389 mm² | 378 mm² |
| Board Design | ||
| TDP | 375W | 140W |
| Suggested PSU | 750 W | 300 W |
| Outputs | 1x DVI4x mini-DisplayPort 1.2 | 4x DisplayPort 2.1b |
| Power Connectors | 2x 8-pin | 1x 16-pin |
| Graphics Features | ||
| DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | N/A | 1.4 |
| Shader Model | 5.0 | 6.8 |
| CUDA | 12.0 | |