GPU model | Ellesmere | Polaris 20 |
---|---|---|
GPU variant | Ellesmere XTA (216-0886220) | Polaris 20 XL (215-0910052) |
Architecture | GCN 4.0 | GCN 4.0 |
Foundry | GlobalFoundries | GlobalFoundries |
Manufacturing process | 14 nm | 14 nm |
Number of transistors | 5,700 million | 5,700 million |
Die size | 232 mm² | 232 mm² |
Release date | Jun 5th, 2017 | — |
---|---|---|
Generation | Radeon Pro Mac (500 Series) | — |
Production | Active | — |
Interface | PCIe 3.0 x16 | — |
Base clock | 1100 MHz | 1168 MHz |
---|---|---|
Boost clock | 1200 MHz | 1284 MHz |
Memory clock | 1695 MHz 6.8 Gbps effective | 1750 MHz 7 Gbps effective |
Memory size | 8 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 256 bit | 256 bit |
Bandwidth | 217.0 GB/s | 224.0 GB/s |
Shading units | 2304 | 2048 |
---|---|---|
TMUs | 144 | 128 |
ROPs | 32 | 32 |
Compute units | 36 | 32 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 2 MB | 2 MB |
Pixel rate | 38.40 GPixel/s | 41.09 GPixel/s |
---|---|---|
Texture rate | 172.8 GTexel/s | 164.4 GTexel/s |
FP16 (half) performance | 5.530 TFLOPS (1:1) | 5.259 TFLOPS (1:1) |
FP32 (float) performance | 5.530 TFLOPS | 5.259 TFLOPS |
FP64 (double) performance | 345.6 GFLOPS (1:16) | 328.7 GFLOPS (1:16) |
Slot width | IGP | Dual-slot |
---|---|---|
TDP | 185 W | 150 W |
Outputs | No outputs | 1x DVI1x HDMI3x DisplayPort |
Power connectors | None | 1x 8-pin |
Length | — | 241 mm 9.5 inches |
Suggested PSU | — | 450 W |
Board number | — | C940, D000 |
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 | — | Oct 15th, 2018 |
---|---|---|
Generation | — | Polaris |
Production | — | Active |
Interface | — | PCIe 3.0 x16 |
Reviews | — | 52 in our database |
Predecessor | — | Arctic Islands |
Successor | — | Vega |