Product Compare
AMD Radeon RX 6600 XT vs AMD Radeon R9 270
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jul 2021 | Nov 2013 |
| Generation | Navi II | Volcanic Islands |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 1968 MHz | 900 MHz |
| Boost Clock | 2589 MHz | 925 MHz |
| Memory Clock | 2000 MHz | 1400 MHz |
| Memory | ||
| Memory Size | 8GB | 2GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 128bit | 256bit |
| Bandwidth | 256.0GB/s | 179.2GB/s |
| Render Config | ||
| Compute Units | 32 | 20 |
| Shading Units | 2048 | 1280 |
| TMUs | 128 | 80 |
| ROPs | 64 | 32 |
| RT Cores | 32 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 2 MB | 512 KB |
| L3 Cache | 32 MB | |
| Theoretical Performance | ||
| Pixel Rate | 165.7 GPixel/s | 29.60 GPixel/s |
| Texture Rate | 331.4 GTexel/s | 74.00 GTexel/s |
| FP16 (half) | 21.21 TFLOPS | |
| FP32 (float) | 10.60 TFLOPS | 2.368 TFLOPS |
| FP64 (double) | 662.8 GFLOPS | 148.0 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 23 | Curacao |
| GPU Variant | Navi 23 XT(215-130000006) | Curacao PRO(215-0848000) |
| Architecture | RDNA 2.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 7 nm | 28 nm |
| Transistors | 11.06 billion | 2.8 billion |
| Die Size | 237 mm² | 212 mm² |
| Board Design | ||
| TDP | 160W | 150W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 1x HDMI 2.13x DisplayPort 1.4a | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 1x 8-pin | 1x 6-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 1.2 |
| Vulkan | 1.3 | 1.2 |
| Shader Model | 6.7 | 5.1 |
| Benchmarks | ||
| 3DMark Time Spy | 9656 | 1603 |