GPU model | Polaris 21 | Polaris 22 |
---|---|---|
GPU variant | Polaris 21 XT (215-0908004) | VegaM XL (D715A714) |
Architecture | GCN 4.0 | GCN 4.0 |
Foundry | GlobalFoundries | GlobalFoundries |
Manufacturing process | 14 nm | 14 nm |
Number of transistors | 3,000 million | 5,000 million |
Die size | 123 mm² | 208 mm² |
Release date | Apr 18th, 2017 | — |
---|---|---|
Generation | Polaris | — |
Production | Active | — |
Launch price | 99 USD | — |
Interface | PCIe 3.0 x8 | — |
Predecessor | Arctic Islands | — |
Successor | Vega | — |
Base clock | 1175 MHz | 931 MHz |
---|---|---|
Boost clock | 1275 MHz | 1011 MHz |
Memory clock | 1750 MHz 7 Gbps effective | 700 MHz 1400 Mbps effective |
Memory size | 4 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | HBM2 |
Memory bus width | 128 bit | 1024 bit |
Bandwidth | 112.0 GB/s | 179.2 GB/s |
Shading units | 1024 | 1280 |
---|---|---|
TMUs | 64 | 80 |
ROPs | 16 | 32 |
Compute units | 16 | 20 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 1024 KB | 1024 KB |
Pixel rate | 20.40 GPixel/s | 32.35 GPixel/s |
---|---|---|
Texture rate | 81.60 GTexel/s | 80.88 GTexel/s |
FP16 (half) performance | 2.611 TFLOPS (1:1) | 2.588 TFLOPS (1:1) |
FP32 (float) performance | 2.611 TFLOPS | 2.588 TFLOPS |
FP64 (double) performance | 163.2 GFLOPS (1:16) | 161.8 GFLOPS (1:16) |
Slot width | Dual-slot | IGP |
---|---|---|
Length | 170 mm 6.7 inches | — |
TDP | 75 W | 65 W |
Suggested PSU | 250 W | — |
Outputs | 1x DVI1x HDMI1x DisplayPort | No outputs |
Power connectors | None | — |
Board number | C994 | D136 |
DirectX | 12 (12_0) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 6.4 |
Release date | — | Feb 1st, 2018 |
---|---|---|
Generation | — | Vega (Vega M) |
Production | — | Active |
Interface | — | IGP |