AMD Radeon HD 6990 vs NVIDIA GeForce GTX 1080 Ti
Graphics Processor
| GPU model | Antilles | GP102 |
|---|---|---|
| GPU variant | Antilles XT (215-0807027) | GP102-350-K1-A1 |
| Architecture | TeraScale 3 | Pascal |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 16 nm |
| Number of transistors | 2,640 million | 11,800 million |
| Die size | 389 mm² | 471 mm² |
Graphics Card
| Release date | Mar 8th, 2011 | Mar 10th, 2017 |
|---|---|---|
| Generation | Northern Islands | GeForce 10 |
| Production | End-of-life | End-of-life |
| Launch price | 699 USD | 699 USD |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 47 in our database | 149 in our database |
| Predecessor | Evergreen | GeForce 900 |
| Successor | Southern Islands | GeForce 20 |
| Current price | — | Amazon / Newegg |
Clocks
| GPU clock | 830 MHz | — |
|---|---|---|
| Memory clock | 1250 MHz 5 Gbps effective | 1376 MHz 11 Gbps effective |
| Base clock | — | 1481 MHz |
| Boost clock | — | 1582 MHz |
Memory Configuration
| Memory size | 2 GB | 11 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5X |
| Memory bus width | 256 bit | 352 bit |
| Bandwidth | 160.0 GB/s | 484.4 GB/s |
Render Configuration
| Shading units | 1536 | 3584 |
|---|---|---|
| TMUs | 96 | 224 |
| ROPs | 32 | 88 |
| Compute units | 24 | — |
| Cache L1 | 8 KB (per CU) | 48 KB (per SM) |
| Cache L2 | 512 KB | 2.75 MB |
| SM count | — | 28 |
Performance
| Pixel rate | 26.56 GPixel/s | 139.2 GPixel/s |
|---|---|---|
| Texture rate | 79.68 GTexel/s | 354.4 GTexel/s |
| FP32 (float) performance | 2.550 TFLOPS | 11.34 TFLOPS |
| FP64 (double) performance | 637.4 GFLOPS (1:4) | 354.4 GFLOPS (1:32) |
| FP16 (half) performance | — | 177.2 GFLOPS (1:64) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 310 mm 12.2 inches | 267 mm 10.5 inches |
| Width | 115 mm 4.5 inches | 112 mm 4.4 inches |
| Height | 40 mm 1.6 inches | 40 mm 1.6 inches |
| TDP | 375 W | 250 W |
| Suggested PSU | 750 W | 600 W |
| Outputs | 1x DVI4x mini-DisplayPort | 1x HDMI3x DisplayPort |
| Power connectors | 2x 8-pin | 1x 6-pin + 1x 8-pin |
| Board number | C206-47 | PG611 SKU 50 |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | — | 1.2 |
| Shader model | 5.0 | 6.4 |
| CUDA | — | 6.1 |
