Product Compare
AMD Radeon RX 6700 XT vs AMD Radeon Instinct MI455X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Mar 2021 | Jul 2026 |
| Generation | Navi II | Radeon Instinct |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 4.0 x16 | PCIe 6.0 x16 |
| Clock Speeds | ||
| Base Clock | 2321 MHz | 1000 MHz |
| Boost Clock | 2581 MHz | 2400 MHz |
| Memory Clock | 2000 MHz | 1900 MHz |
| Memory | ||
| Memory Size | 12GB | 432GB |
| Memory Type | GDDR6 | HBM4 |
| Memory Bus | 192bit | 24576bit |
| Bandwidth | 384.0GB/s | 23.3TB/s |
| Render Config | ||
| Compute Units | 40 | 256 |
| Shading Units | 2560 | 32768 |
| TMUs | 160 | 1024 |
| ROPs | 64 | 0 |
| RT Cores | 40 | |
| L1 Cache | 128 KB per Array | 32 KB (per CU) |
| L2 Cache | 3 MB | 192 MB |
| L3 Cache | 96 MB | |
| Theoretical Performance | ||
| Pixel Rate | 165.2 GPixel/s | 0 MPixel/s |
| Texture Rate | 413.0 GTexel/s | 2457.6 GTexel/s |
| FP16 (half) | 26.43 TFLOPS | 157.3 TFLOPS |
| FP32 (float) | 13.21 TFLOPS | 157.3 TFLOPS |
| FP64 (double) | 825.9 GFLOPS | 2.458 TFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 22 | MI450 256CU |
| GPU Variant | Navi 22 XT(215-127000006) | |
| Architecture | RDNA 2.0 | CDNA 5.0 |
| Foundry | TSMC | TSMC |
| Process Size | 7 nm | 2 nm |
| Transistors | 17.2 billion | 320 billion |
| Die Size | 335 mm² | Unknown |
| Board Design | ||
| TDP | 230W | 2300W |
| Suggested PSU | 550 W | 2700 W |
| Outputs | 1x HDMI 2.13x DisplayPort 1.4a | No outputs |
| Power Connectors | 1x 6-pin + 1x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.3 | N/A |
| Shader Model | 6.5 | N/A |