Product Compare
AMD Radeon HD 6850 X2 vs NVIDIA RTX PRO 4500 Blackwell Server
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2011 | Mar 2026 |
| Generation | Northern Islands | Server Blackwell |
| Type | Desktop | Professional |
| Bus Interface | PCIe 2.0 x16 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1050 MHz | 1563 MHz |
| Base Clock | 1215 MHz | |
| Boost Clock | 2415 MHz | |
| Memory | ||
| Memory Size | 2GB | 32GB |
| Memory Type | GDDR5 | GDDR7 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 134.4GB/s | 800.3GB/s |
| Render Config | ||
| Compute Units | 12 | |
| Shading Units | 960 | 10496 |
| TMUs | 48 | 328 |
| ROPs | 32 | 112 |
| L1 Cache | 8 KB (per CU) | 128 KB (per SM) |
| L2 Cache | 512 KB | 64 MB |
| SM Count | 82 | |
| Tensor Cores | 328 | |
| RT Cores | 82 | |
| Theoretical Performance | ||
| Pixel Rate | 25.60 GPixel/s | 270.5 GPixel/s |
| Texture Rate | 38.40 GTexel/s | 792.1 GTexel/s |
| FP32 (float) | 1.536 TFLOPS | 50.70 TFLOPS |
| FP16 (half) | 50.70 TFLOPS | |
| FP64 (double) | 792.1 GFLOPS | |
| Graphics Processor | ||
| GPU Name | Barts | GB203 |
| GPU Variant | Barts PRO(215-0798006) | |
| Architecture | TeraScale 2 | Blackwell 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 5 nm |
| Transistors | 1.7 billion | 45.6 billion |
| Die Size | 255 mm² | 378 mm² |
| Board Design | ||
| TDP | 254W | 165W |
| Suggested PSU | 600 W | 450 W |
| Outputs | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 | No outputs |
| 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 | 6.9 |
| CUDA | 12.0 | |