GPU model | Polaris 21 | Pinewood |
---|---|---|
GPU variant | Polaris 21 XT (215-0908004) | Pinewood PRO |
Architecture | GCN 4.0 | TeraScale 2 |
Foundry | GlobalFoundries | TSMC |
Manufacturing process | 14 nm | 40 nm |
Number of transistors | 3,000 million | 627 million |
Die size | 123 mm² | 104 mm² |
Release date | Apr 18th, 2017 | Feb 9th, 2010 |
---|---|---|
Generation | Polaris | Evergreen |
Production | Active | End-of-life |
Launch price | 99 USD | — |
Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
Predecessor | Arctic Islands | Radeon R700 |
Successor | Vega | Northern Islands |
Reviews | — | 42 in our database |
Base clock | 1175 MHz | — |
---|---|---|
Boost clock | 1275 MHz | — |
Memory clock | 1750 MHz 7 Gbps effective | 800 MHz 3.2 Gbps effective |
GPU clock | — | 625 MHz |
Memory size | 4 GB | 1024 MB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 112.0 GB/s | 51.20 GB/s |
Shading units | 1024 | 400 |
---|---|---|
TMUs | 64 | 20 |
ROPs | 16 | 8 |
Compute units | 16 | 5 |
Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
Cache L2 | 1024 KB | 256 KB |
Pixel rate | 20.40 GPixel/s | 5.000 GPixel/s |
---|---|---|
Texture rate | 81.60 GTexel/s | 12.50 GTexel/s |
FP16 (half) performance | 2.611 TFLOPS (1:1) | — |
FP32 (float) performance | 2.611 TFLOPS | 500.0 GFLOPS |
FP64 (double) performance | 163.2 GFLOPS (1:16) | — |
Slot width | Dual-slot | Single-slot |
---|---|---|
Length | 170 mm 6.7 inches | 165 mm 6.5 inches |
TDP | 75 W | 39 W |
Suggested PSU | 250 W | 200 W |
Outputs | 1x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI1x VGA |
Power connectors | None | None |
Board number | C994 | C076 |
DirectX | 12 (12_0) | 11.2 (11_0) |
---|---|---|
OpenGL | 4.6 | 4.4 |
OpenCL | 2.1 | 1.2 |
Vulkan | 1.2 | — |
Shader model | 6.4 | 5.0 |