GPU model | Tahiti | Lexa |
---|---|---|
GPU variant | Tahiti PRO (215-0821056) | Lexa PRO (215-0904018) |
Architecture | GCN 1.0 | GCN 4.0 |
Foundry | TSMC | GlobalFoundries |
Manufacturing process | 28 nm | 14 nm |
Number of transistors | 4,313 million | 2,200 million |
Die size | 352 mm² | 103 mm² |
Release date | Jan 31st, 2012 | — |
---|---|---|
Generation | Southern Islands | — |
Production | End-of-life | — |
Launch price | 449 USD | — |
Interface | PCIe 3.0 x16 | — |
Reviews | 118 in our database | — |
Predecessor | Northern Islands | — |
Successor | Sea Islands | — |
GPU clock | 800 MHz | — |
---|---|---|
Memory clock | 1250 MHz 5 Gbps effective | 1500 MHz 6 Gbps effective |
Base clock | — | 1124 MHz |
Boost clock | — | 1219 MHz |
Memory size | 3 GB | 2 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 384 bit | 128 bit |
Bandwidth | 240.0 GB/s | 96.00 GB/s |
Shading units | 1792 | 512 |
---|---|---|
TMUs | 112 | 32 |
ROPs | 32 | 16 |
Compute units | 28 | 8 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 768 KB | 512 KB |
Pixel rate | 25.60 GPixel/s | 19.50 GPixel/s |
---|---|---|
Texture rate | 89.60 GTexel/s | 39.01 GTexel/s |
FP32 (float) performance | 2.867 TFLOPS | 1,248 GFLOPS |
FP64 (double) performance | 716.8 GFLOPS (1:4) | 78.02 GFLOPS (1:16) |
FP16 (half) performance | — | 1,248 GFLOPS (1:1) |
Slot width | Dual-slot | IGP |
---|---|---|
Length | 278 mm 10.9 inches | — |
Width | 111 mm 4.4 inches | — |
Height | 38 mm 1.5 inches | — |
TDP | 200 W | 50 W |
Suggested PSU | 550 W | — |
Outputs | 1x DVI1x HDMI2x mini-DisplayPort | No outputs |
Power connectors | 2x 6-pin | None |
Board number | C386-37 | — |
DirectX | 12 (11_1) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 5.1 | 6.4 |
Release date | — | Nov 11th, 2017 |
---|---|---|
Generation | — | Mobility Radeon (RX M500) |
Production | — | End-of-life |
Interface | — | PCIe 3.0 x8 |
Predecessor | — | Crystal System |