GPU model | Tahiti | Pitcairn |
---|---|---|
GPU variant | Tahiti PRO (215-0821056) | Pitcairn XT GL (215-0828073) |
Architecture | GCN 1.0 | GCN 1.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 28 nm | 28 nm |
Number of transistors | 4,313 million | 2,800 million |
Die size | 352 mm² | 212 mm² |
Release date | Mar 7th, 2013 | Mar 27th, 2013 |
---|---|---|
Generation | Southern Islands | Radeon Sky |
Production | End-of-life | End-of-life |
Launch price | 449 USD | — |
Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
Reviews | 118 in our database | — |
Predecessor | Northern Islands | — |
Successor | Sea Islands | — |
GPU clock | 800 MHz | 950 MHz |
---|---|---|
Memory clock | 1250 MHz 5 Gbps effective | 1200 MHz 4.8 Gbps effective |
Memory size | 3 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 384 bit | 256 bit |
Bandwidth | 240.0 GB/s | 153.6 GB/s |
Shading units | 1792 | 1280 |
---|---|---|
TMUs | 112 | 80 |
ROPs | 32 | 32 |
Compute units | 28 | 20 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 768 KB | 512 KB |
Pixel rate | 25.60 GPixel/s | 30.40 GPixel/s |
---|---|---|
Texture rate | 89.60 GTexel/s | 76.00 GTexel/s |
FP32 (float) performance | 2.867 TFLOPS | 2.432 TFLOPS |
FP64 (double) performance | 716.8 GFLOPS (1:4) | 152.0 GFLOPS (1:16) |
Slot width | Dual-slot | Single-slot |
---|---|---|
Length | 279 mm 11 inches | 242 mm 9.5 inches |
TDP | 200 W | 150 W |
Suggested PSU | 550 W | 450 W |
Outputs | 1x DVI1x HDMI2x mini-DisplayPort | 1x DisplayPort |
Power connectors | 2x 6-pin | 1x 6-pin |
Board number | C381 | — |
Width | — | 111 mm 4.4 inches |
DirectX | 12 (11_1) | 12 (11_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 1.2 |
Vulkan | 1.2 | 1.2 |
Shader model | 5.1 | 5.1 |