Product Compare
AMD Radeon RX 7800M vs AMD Radeon Instinct MI355X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2024 | Jun 2025 |
| Generation | Navi Mobile | Radeon Instinct |
| Type | Mobile | Professional |
| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| Clock Speeds | ||
| Base Clock | 1295 MHz | 1000 MHz |
| Boost Clock | 2335 MHz | 2400 MHz |
| Memory Clock | 2250 MHz | 2000 MHz |
| Memory | ||
| Memory Size | 12GB | 288GB |
| Memory Type | GDDR6 | HBM3e |
| Memory Bus | 192bit | 8192bit |
| Bandwidth | 432.0GB/s | 8.19TB/s |
| Render Config | ||
| Compute Units | 60 | 256 |
| Shading Units | 3840 | 16384 |
| TMUs | 240 | 1024 |
| ROPs | 96 | 0 |
| RT Cores | 60 | |
| L1 Cache | 128 KB per Array | 32 KB (per CU) |
| L2 Cache | 4 MB | 32 MB |
| L3 Cache | 48 MB | 256 MB |
| Tensor Cores | 1216 | |
| Theoretical Performance | ||
| Pixel Rate | 224.2 GPixel/s | 0 MPixel/s |
| Texture Rate | 560.4 GTexel/s | 2457.6 GTexel/s |
| FP16 (half) | 71.73 TFLOPS | 78.64 TFLOPS |
| FP32 (float) | 35.87 TFLOPS | 78.64 TFLOPS |
| FP64 (double) | 1121 GFLOPS | 39.32 TFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 32 | MI350 256CU |
| GPU Variant | Navi 32 XT(215-180000006) | |
| Architecture | RDNA 3.0 | CDNA 4.0 |
| Foundry | TSMC | TSMC |
| Process Size | 5 nm | 3 nm |
| Transistors | 28.1 billion | 185 billion |
| Die Size | 346 mm² | Unknown |
| Board Design | ||
| TDP | 180W | 1400W |
| Outputs | Portable Device Dependent | No outputs |
| Power Connectors | None | 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 | 1.3 | N/A |
| Shader Model | 6.8 | N/A |