GPU model | Emerald | Polaris 21 |
---|---|---|
GPU variant | Emerald XT | Polaris 21 XT (215-0908004) |
Architecture | GCN 2.0 | GCN 4.0 |
Foundry | TSMC | GlobalFoundries |
Manufacturing process | 28 nm | 14 nm |
Number of transistors | 2,080 million | 3,000 million |
Die size | 160 mm² | 123 mm² |
Release date | May 15th, 2016 | — |
---|---|---|
Generation | Crystal System (R9 M400) | — |
Production | End-of-life | — |
Interface | PCIe 3.0 x16 | — |
Predecessor | Solar System | — |
Successor | Mobility Radeon | — |
Base clock | 1000 MHz | 1175 MHz |
---|---|---|
Boost clock | 1100 MHz | 1275 MHz |
Memory clock | 1500 MHz 6 Gbps effective | 1750 MHz 7 Gbps effective |
Memory size | 4 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 96.00 GB/s | 112.0 GB/s |
Shading units | 896 | 1024 |
---|---|---|
TMUs | 56 | 64 |
ROPs | 16 | 16 |
Compute units | 14 | 16 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 256 KB | 1024 KB |
Pixel rate | 17.60 GPixel/s | 20.40 GPixel/s |
---|---|---|
Texture rate | 61.60 GTexel/s | 81.60 GTexel/s |
FP32 (float) performance | 1.971 TFLOPS | 2.611 TFLOPS |
FP64 (double) performance | 123.2 GFLOPS (1:16) | 163.2 GFLOPS (1:16) |
FP16 (half) performance | — | 2.611 TFLOPS (1:1) |
TDP | unknown | 75 W |
---|---|---|
Outputs | No outputs | 1x DVI1x HDMI1x DisplayPort |
Slot width | — | Dual-slot |
Length | — | 170 mm 6.7 inches |
Suggested PSU | — | 250 W |
Power connectors | — | None |
Board number | — | C994 |
DirectX | 12 (12_0) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.0 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.3 | 6.4 |
Release date | — | Apr 11th, 2018 |
---|---|---|
Generation | — | Polaris |
Production | — | Active |
Interface | — | PCIe 3.0 x8 |
Predecessor | — | Polaris |
Successor | — | Vega |