Product Compare
AMD Radeon RX 7800 XT vs AMD Radeon RX 6450M
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Aug 2023 | Jan 2023 |
| Generation | Navi III | Navi Mobile |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x4 |
| Clock Speeds | ||
| Base Clock | 1295 MHz | 2000 MHz |
| Boost Clock | 2430 MHz | 2460 MHz |
| Memory Clock | 2438 MHz | 2000 MHz |
| Memory | ||
| Memory Size | 16GB | 4GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256bit | 64bit |
| Bandwidth | 624.1GB/s | 128.0GB/s |
| Render Config | ||
| Compute Units | 60 | 12 |
| Shading Units | 3840 | 768 |
| TMUs | 240 | 48 |
| ROPs | 96 | 32 |
| RT Cores | 60 | 12 |
| L1 Cache | 128 KB per Array | 128 KB per Array |
| L2 Cache | 4 MB | 1024 KB |
| L3 Cache | 64 MB | 16 MB |
| Theoretical Performance | ||
| Pixel Rate | 233.3 GPixel/s | 78.72 GPixel/s |
| Texture Rate | 583.2 GTexel/s | 118.1 GTexel/s |
| FP16 (half) | 74.65 TFLOPS | 7.557 TFLOPS |
| FP32 (float) | 37.32 TFLOPS | 3.779 TFLOPS |
| FP64 (double) | 1166.4 GFLOPS | 236.2 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 32 | Navi 24 |
| GPU Variant | Navi 32 XT(215-180000006) | Navi 24 XML |
| Architecture | RDNA 3.0 | RDNA 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 6 nm |
| Transistors | 28.1 billion | 5.4 billion |
| Die Size | 346 mm² | 107 mm² |
| Board Design | ||
| TDP | 263W | 50W |
| Suggested PSU | 600 W | |
| Outputs | 1x HDMI 2.1a3x DisplayPort 2.1 | Portable Device Dependent |
| Power Connectors | 2x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.2 | 2.2 |
| Vulkan | 1.3 | 1.3 |
| Shader Model | 6.8 | 6.7 |