Product Compare
NVIDIA B300 vs AMD Radeon RX 6650 XT
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2025 | May 2022 |
| Generation | Server Blackwell | Navi II |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x8 |
| Clock Speeds | ||
| Base Clock | 1665 MHz | 2055 MHz |
| Boost Clock | 2032 MHz | 2635 MHz |
| Memory Clock | 2000 MHz | 2190 MHz |
| Memory | ||
| Memory Size | 144GB | 8GB |
| Memory Type | HBM3e | GDDR6 |
| Memory Bus | 4096bit | 128bit |
| Bandwidth | 4.10TB/s | 280.3GB/s |
| Render Config | ||
| SM Count | 148 | |
| Shading Units | 18944 | 2048 |
| TMUs | 592 | 128 |
| ROPs | 24 | 64 |
| Tensor Cores | 592 | |
| L1 Cache | 256 KB (per SM) | 128 KB per Array |
| L2 Cache | 50 MB | 2 MB |
| Compute Units | 32 | |
| RT Cores | 32 | |
| L3 Cache | 32 MB | |
| Theoretical Performance | ||
| Pixel Rate | 48.77 GPixel/s | 168.6 GPixel/s |
| Texture Rate | 1202.9 GTexel/s | 337.3 GTexel/s |
| FP16 (half) | 1231.8 TFLOPS | 21.59 TFLOPS |
| FP32 (float) | 76.99 TFLOPS | 10.79 TFLOPS |
| FP64 (double) | 1202.9 GFLOPS | 674.6 GFLOPS |
| Graphics Processor | ||
| GPU Name | GB110 | Navi 23 |
| Architecture | Blackwell Ultra | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 7 nm |
| Transistors | 104 billion | 11.06 billion |
| Die Size | Unknown | 237 mm² |
| GPU Variant | Navi 23 KXT(215-130000136) | |
| Board Design | ||
| TDP | 1400W | 176W |
| Suggested PSU | 1800 W | 450 W |
| Outputs | No outputs | 1x HDMI 2.13x DisplayPort 1.4a |
| Power Connectors | 1x 8-pin | |
| Graphics Features | ||
| DirectX | N/A | 12 Ultimate (12_2) |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 2.1 |
| Vulkan | N/A | 1.3 |
| CUDA | 10.3 | |
| Shader Model | N/A | 6.5 |