GPU model | Tropo | Polaris 21 |
---|---|---|
GPU variant | Tropo LE | Polaris 21M XT |
Architecture | GCN 1.0 | GCN 4.0 |
Foundry | TSMC | GlobalFoundries |
Manufacturing process | 28 nm | 14 nm |
Number of transistors | 1,500 million | 3,000 million |
Die size | 123 mm² | 123 mm² |
Release date | May 15th, 2016 | Apr 11th, 2018 |
---|---|---|
Generation | Crystal System (R7 M400) | Mobility Radeon (RX M500X) |
Production | End-of-life | Active |
Interface | PCIe 3.0 x16 | MXM-B (3.0) |
Predecessor | Solar System | Crystal System |
Successor | Mobility Radeon | — |
Base clock | 900 MHz | — |
---|---|---|
Boost clock | 925 MHz | — |
Memory clock | 1125 MHz 4.5 Gbps effective | 1450 MHz 5.8 Gbps effective |
GPU clock | — | 1275 MHz |
Memory size | 2 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 72.00 GB/s | 92.80 GB/s |
Shading units | 512 | 1024 |
---|---|---|
TMUs | 32 | 64 |
ROPs | 16 | 16 |
Compute units | 8 | 16 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 256 KB | 1024 KB |
Pixel rate | 14.80 GPixel/s | 20.40 GPixel/s |
---|---|---|
Texture rate | 29.60 GTexel/s | 81.60 GTexel/s |
FP32 (float) performance | 947.2 GFLOPS | 2.611 TFLOPS |
FP64 (double) performance | 59.20 GFLOPS (1:16) | 163.2 GFLOPS (1:16) |
FP16 (half) performance | — | 2.611 TFLOPS (1:1) |
TDP | unknown | 65 W |
---|---|---|
Outputs | No outputs | No outputs |
Slot width | — | MXM Module |
Power connectors | — | None |
DirectX | 12 (11_1) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 5.1 | 6.4 |