Product Compare
AMD Radeon R9 270 vs AMD Radeon Instinct MI455X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Nov 2013 | Jul 2026 |
| Generation | Volcanic Islands | Radeon Instinct |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 6.0 x16 |
| Clock Speeds | ||
| Base Clock | 900 MHz | 1000 MHz |
| Boost Clock | 925 MHz | 2400 MHz |
| Memory Clock | 1400 MHz | 1900 MHz |
| Memory | ||
| Memory Size | 2GB | 432GB |
| Memory Type | GDDR5 | HBM4 |
| Memory Bus | 256bit | 24576bit |
| Bandwidth | 179.2GB/s | 23.3TB/s |
| Render Config | ||
| Compute Units | 20 | 256 |
| Shading Units | 1280 | 32768 |
| TMUs | 80 | 1024 |
| ROPs | 32 | 0 |
| L1 Cache | 16 KB (per CU) | 32 KB (per CU) |
| L2 Cache | 512 KB | 192 MB |
| Theoretical Performance | ||
| Pixel Rate | 29.60 GPixel/s | 0 MPixel/s |
| Texture Rate | 74.00 GTexel/s | 2457.6 GTexel/s |
| FP32 (float) | 2.368 TFLOPS | 157.3 TFLOPS |
| FP64 (double) | 148.0 GFLOPS | 2.458 TFLOPS |
| FP16 (half) | 157.3 TFLOPS | |
| Graphics Processor | ||
| GPU Name | Curacao | MI450 256CU |
| GPU Variant | Curacao PRO(215-0848000) | |
| Architecture | GCN 1.0 | CDNA 5.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 2 nm |
| Transistors | 2.8 billion | 320 billion |
| Die Size | 212 mm² | Unknown |
| Board Design | ||
| TDP | 150W | 2300W |
| Suggested PSU | 450 W | 2700 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin | None |
| Graphics Features | ||
| DirectX | 12 (11_1) | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | N/A |
| Shader Model | 5.1 | N/A |