AMD Radeon R9 M295X Mac Edition vs AMD Radeon R9 M395X Mac Edition
Graphics Processor
GPU model | Amethyst | Amethyst |
---|---|---|
GPU variant | Amethyst XT | Amethyst XT |
Architecture | GCN 3.0 | GCN 3.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 28 nm | 28 nm |
Number of transistors | 5,000 million | 5,000 million |
Die size | 366 mm² | 366 mm² |
Mobile graphics
Release date | Nov 23rd, 2014 | May 5th, 2015 |
---|---|---|
Generation | Crystal System (R9 M200) | Crystal System (R9 M300) |
Production | End-of-life | End-of-life |
Interface | MXM-B (3.0) | MXM-B (3.0) |
Predecessor | Solar System | Solar System |
Successor | Mobility Radeon | Mobility Radeon |
Clocks
GPU clock | 850 MHz | 909 MHz |
---|---|---|
Memory clock | 1362 MHz 5.4 Gbps effective | 1365 MHz 5.5 Gbps effective |
Memory Configuration
Memory size | 4 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 256 bit | 256 bit |
Bandwidth | 174.3 GB/s | 174.7 GB/s |
Render Configuration
Shading units | 2048 | 2048 |
---|---|---|
TMUs | 128 | 128 |
ROPs | 32 | 32 |
Compute units | 32 | 32 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 512 KB | 512 KB |
Performance
Pixel rate | 27.20 GPixel/s | 29.09 GPixel/s |
---|---|---|
Texture rate | 108.8 GTexel/s | 116.4 GTexel/s |
FP16 (half) performance | 3.482 TFLOPS (1:1) | 3.723 TFLOPS (1:1) |
FP32 (float) performance | 3.482 TFLOPS | 3.723 TFLOPS |
FP64 (double) performance | 217.6 GFLOPS (1:16) | 232.7 GFLOPS (1:16) |
Dimensions & Outputs
Slot width | MXM Module | MXM Module |
---|---|---|
TDP | 250 W | 250 W |
Outputs | No outputs | No outputs |
Power connectors | — | None |
API Support & 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 |