Product Compare
AMD Steam Machine GPU vs NVIDIA B300
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2026 | Sep 2025 |
| Generation | Console GPU | Server Blackwell |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 5.0 x16 | |
| Clock Speeds | ||
| Base Clock | 1720 MHz | 1665 MHz |
| Boost Clock | 2450 MHz | 2032 MHz |
| Memory Clock | 2250 MHz | 2000 MHz |
| Memory | ||
| Memory Size | 8GB | 144GB |
| Memory Type | GDDR6 | HBM3e |
| Memory Bus | 128bit | 4096bit |
| Bandwidth | 288.0GB/s | 4.10TB/s |
| Render Config | ||
| Compute Units | 28 | |
| Shading Units | 1792 | 18944 |
| TMUs | 112 | 592 |
| ROPs | 64 | 24 |
| RT Cores | 28 | |
| L1 Cache | 128 KB per Array | 256 KB (per SM) |
| L2 Cache | 2 MB | 50 MB |
| L3 Cache | 32 MB | |
| SM Count | 148 | |
| Tensor Cores | 592 | |
| Theoretical Performance | ||
| Pixel Rate | 156.8 GPixel/s | 48.77 GPixel/s |
| Texture Rate | 274.4 GTexel/s | 1202.9 GTexel/s |
| FP16 (half) | 35.12 TFLOPS | 1231.8 TFLOPS |
| FP32 (float) | 17.56 TFLOPS | 76.99 TFLOPS |
| FP64 (double) | 548.8 GFLOPS | 1202.9 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 33 | GB110 |
| Architecture | RDNA 3.0 | Blackwell Ultra |
| Foundry | TSMC | TSMC |
| Process Size | 6 nm | 5 nm |
| Transistors | 13.3 billion | 104 billion |
| Die Size | 204 mm² | Unknown |
| Board Design | ||
| TDP | 110W | 1400W |
| Outputs | No outputs | No outputs |
| Power Connectors | None | |
| Suggested PSU | 1800 W | |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.2 | 3.0 |
| Vulkan | 1.4 | N/A |
| Shader Model | 6.8 | N/A |
| CUDA | 10.3 | |