Product Compare
AMD Radeon R9 295X2 vs AMD Radeon R9 M390X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Apr 2014 | May 2015 |
| Generation | Volcanic Islands | Crystal System |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1250 MHz | 1250 MHz |
| Memory | ||
| Memory Size | 4GB | 4GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 512bit | 256bit |
| Bandwidth | 320.0GB/s | 160.0GB/s |
| Render Config | ||
| Compute Units | 44 | 32 |
| Shading Units | 2816 | 2048 |
| TMUs | 176 | 128 |
| ROPs | 64 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 1024 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 65.15 GPixel/s | 23.14 GPixel/s |
| Texture Rate | 179.2 GTexel/s | 92.54 GTexel/s |
| FP32 (float) | 5.733 TFLOPS | 2.961 TFLOPS |
| FP64 (double) | 716.7 GFLOPS | 185.1 GFLOPS |
| FP16 (half) | 2.961 TFLOPS | |
| Graphics Processor | ||
| GPU Name | Vesuvius | Amethyst |
| GPU Variant | Vesuvius XT(215-0852022) | Amethyst XT |
| Architecture | GCN 2.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 6.2 billion | 5 billion |
| Die Size | 438 mm² | 366 mm² |
| Board Design | ||
| TDP | 500W | 75W |
| Suggested PSU | 900 W | |
| Outputs | 1x DVI4x mini-DisplayPort 1.2 | No outputs |
| Power Connectors | 2x 8-pin | None |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader Model | 6.3 | 6.3 |