GPU model | Polaris 22 | Tahiti |
---|---|---|
GPU variant | VegaM MGL XL | Tahiti PRO GL |
Architecture | GCN 4.0 | GCN 1.0 |
Foundry | GlobalFoundries | TSMC |
Manufacturing process | 14 nm | 28 nm |
Number of transistors | 5,000 million | 4,313 million |
Die size | 208 mm² | 352 mm² |
Release date | Apr 24th, 2018 | — |
---|---|---|
Generation | Vega (Vega M) | — |
Production | Active | — |
Interface | IGP | — |
Base clock | 931 MHz | — |
---|---|---|
Boost clock | 1011 MHz | — |
Memory clock | 700 MHz 1400 Mbps effective | 1375 MHz 5.5 Gbps effective |
GPU clock | — | 900 MHz |
Memory size | 4 GB | 6 GB |
---|---|---|
Memory type | HBM2 | GDDR5 |
Memory bus width | 1024 bit | 384 bit |
Bandwidth | 179.2 GB/s | 264.0 GB/s |
Shading units | 1280 | 1792 |
---|---|---|
TMUs | 80 | 112 |
ROPs | 32 | 32 |
Compute units | 20 | 28 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 1024 KB | 768 KB |
Pixel rate | 32.35 GPixel/s | 28.80 GPixel/s |
---|---|---|
Texture rate | 80.88 GTexel/s | 100.8 GTexel/s |
FP16 (half) performance | 2.588 TFLOPS (1:1) | — |
FP32 (float) performance | 2.588 TFLOPS | 3.226 TFLOPS |
FP64 (double) performance | 161.8 GFLOPS (1:16) | 806.4 GFLOPS (1:4) |
Slot width | IGP | Dual-slot |
---|---|---|
TDP | 65 W | 225 W |
Outputs | No outputs | 1x DisplayPort |
Board number | D136 | — |
Length | — | 267 mm 10.5 inches |
Width | — | 111 mm 4.4 inches |
Suggested PSU | — | 550 W |
Power connectors | — | 1x 8-pin |
DirectX | 12 (12_0) | 12 (11_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 1.2 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 5.1 |
Release date | — | Mar 27th, 2013 |
---|---|---|
Generation | — | Radeon Sky |
Production | — | End-of-life |
Interface | — | PCIe 3.0 x16 |