GPU model | Polaris 23 | Hemlock |
---|---|---|
GPU variant | Polaris 23 XT GL | Hemlock XT (215-0735075) |
Architecture | GCN 4.0 | TeraScale 2 |
Foundry | GlobalFoundries | TSMC |
Manufacturing process | 14 nm | 40 nm |
Number of transistors | 2,200 million | 2,154 million |
Die size | 103 mm² | 334 mm² |
Release date | Jul 2nd, 2019 | Nov 18th, 2009 |
---|---|---|
Generation | Radeon Pro | Evergreen |
Production | Active | End-of-life |
Launch price | 199 USD | 699 USD |
Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
Reviews | — | 74 in our database |
Predecessor | — | Radeon R700 |
Successor | — | Northern Islands |
GPU clock | 1295 MHz | 725 MHz |
---|---|---|
Memory clock | 1500 MHz 6 Gbps effective | 1000 MHz 4 Gbps effective |
Memory size | 4 GB | 1024 MB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 128 bit | 256 bit |
Bandwidth | 96.00 GB/s | 128.0 GB/s |
Shading units | 640 | 1600 |
---|---|---|
TMUs | 32 | 80 |
ROPs | 16 | 32 |
Compute units | 10 | 20 |
Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
Cache L2 | 512 KB | 512 KB |
Pixel rate | 20.72 GPixel/s | 23.20 GPixel/s |
---|---|---|
Texture rate | 41.44 GTexel/s | 58.00 GTexel/s |
FP16 (half) performance | 1.658 TFLOPS (1:1) | — |
FP32 (float) performance | 1.658 TFLOPS | 2.320 TFLOPS |
FP64 (double) performance | 103.6 GFLOPS (1:16) | 464.0 GFLOPS (1:5) |
Slot width | Single-slot | Dual-slot |
---|---|---|
Length | 167 mm 6.6 inches | 311 mm 12.2 inches |
Width | 69 mm 2.7 inches | 111 mm 4.4 inches |
TDP | 65 W | 294 W |
Suggested PSU | 250 W | 600 W |
Outputs | 4x mini-DisplayPort | 2x DVI1x mini-DisplayPort |
Power connectors | None | 1x 6-pin + 1x 8-pin |
Height | — | 40 mm 1.6 inches |
Board number | — | C000-37 |
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 |