NVIDIA GeForce GTX 560 Ti OEM vs NVIDIA GeForce GTX 645 OEM
Graphics Processor
| GPU model | GF110 | GK106 |
|---|---|---|
| Architecture | Fermi 2.0 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 3,000 million | 2,540 million |
| Die size | 520 mm² | 221 mm² |
| GPU variant | — | GK106-200-A1 |
Graphics Card
| Release date | Mar 30th, 2011 | Apr 22nd, 2013 |
|---|---|---|
| Generation | GeForce 500 | GeForce 600 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 122 in our database | — |
| Predecessor | GeForce 400 | GeForce 500 |
| Successor | GeForce 600 | GeForce 700 |
Clocks
| GPU clock | 732 MHz | 824 MHz |
|---|---|---|
| Shader clock | 1464 MHz | — |
| Memory clock | 950 MHz 3.8 Gbps effective | 1000 MHz 4 Gbps effective |
Memory Configuration
| Memory size | 1280 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 121.6 GB/s | 64.00 GB/s |
Render Configuration
| Shading units | 352 | 576 |
|---|---|---|
| TMUs | 44 | 48 |
| ROPs | 40 | 16 |
| SM count | 11 | — |
| Cache L1 | 64 KB (per SM) | 16 KB (per SMX) |
| Cache L2 | 512 KB | 256 KB |
| SMX count | — | 3 |
Performance
| Pixel rate | 16.10 GPixel/s | 9.888 GPixel/s |
|---|---|---|
| Texture rate | 32.21 GTexel/s | 39.55 GTexel/s |
| FP32 (float) performance | 1,031 GFLOPS | 949.2 GFLOPS |
| FP64 (double) performance | 128.8 GFLOPS (1:8) | 39.55 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 229 mm 9 inches | 147 mm 5.8 inches |
| TDP | 210 W | 65 W |
| Suggested PSU | 550 W | 250 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI1x DisplayPort |
| Power connectors | 2x 6-pin | None |
| Board number | P1263 | P2010 SKU 20 |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | — | 1.1 |
| CUDA | 2.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
