GPU model | Polaris 21 | Coffee Lake GT3e |
---|---|---|
GPU variant | Polaris 21 XT (215-0908004) | — |
Architecture | GCN 4.0 | Generation 9.5 |
Foundry | GlobalFoundries | Intel |
Manufacturing process | 14 nm | 14 nm+++ |
Number of transistors | 3,000 million | unknown |
Die size | 123 mm² | unknown |
Release date | Apr 18th, 2017 | — |
---|---|---|
Generation | Radeon Pro Mac (500 Series) | — |
Production | Active | — |
Interface | PCIe 3.0 x8 | — |
GPU clock | 907 MHz | — |
---|---|---|
Memory clock | 1270 MHz 5.1 Gbps effective | System Shared |
Base clock | — | 300 MHz |
Boost clock | — | 1050 MHz |
Memory size | 4 GB | System Shared |
---|---|---|
Memory type | GDDR5 | System Shared |
Memory bus width | 128 bit | System Shared |
Bandwidth | 81.28 GB/s | System Dependent |
Shading units | 1024 | 384 |
---|---|---|
TMUs | 64 | 48 |
ROPs | 16 | 6 |
Compute units | 16 | — |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 1024 KB | — |
Execution units | — | 48 |
Pixel rate | 14.51 GPixel/s | 6.300 GPixel/s |
---|---|---|
Texture rate | 58.05 GTexel/s | 50.40 GTexel/s |
FP16 (half) performance | 1.858 TFLOPS (1:1) | 1.613 TFLOPS (2:1) |
FP32 (float) performance | 1.858 TFLOPS | 806.4 GFLOPS |
FP64 (double) performance | 116.1 GFLOPS (1:16) | 201.6 GFLOPS (1:4) |
Slot width | IGP | IGP |
---|---|---|
TDP | 75 W | 15 W |
Outputs | No outputs | No outputs |
Power connectors | None | — |
DirectX | 12 (12_0) | 12 (12_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 3.0 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 6.4 |
Release date | — | Apr 3rd, 2018 |
---|---|---|
Generation | — | HD Graphics-M (Coffee Lake) |
Production | — | Active |
Interface | — | Ring Bus |
Reviews | — | 1 in our database |