NVIDIA GeForce GTX 260 Rev. 2 vs NVIDIA GeForce GT 645 OEM
What is the difference between NVIDIA GeForce GTX 260 Rev. 2 and NVIDIA GeForce GT 645 OEM. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GT200B | GPU Name | GF114 |
| Tesla 2.0 | Architecture | Fermi 2.0 |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 40 nm |
| 1,400 million | Transistors | 1,950 million |
| 470 mm² | Die Size | 332 mm² |
Graphics Card
| Jul 23rd, 2008 | Release Date | Apr 24th, 2012 |
| GeForce 200 | Family | GeForce 600 |
| End-of-life | Production | End-of-life |
| GeForce 9 | Predecessor | GeForce 500 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 896 MB | Memory Size | 1024 MB |
| GDDR3 | Memory Type | GDDR5 |
| 448 bit | Memory Bus | 192 bit |
| 111.9 GB/s | Bandwidth | 91.87 GB/s |
Performance
| 16.13 GPixel/s | Pixel fillrate | 9.312 GPixel/s |
| 36.86 GTexel/s | Texture fillrate | 37.25 GTexel/s |
| 476.9 GFLOPS | FP32 (float) performance | 894.0 GFLOPS |
| 59.62 GFLOPS (1:8) | FP64 (double) performance | 74.50 GFLOPS (1:12) |
Clock Speeds
| 999 MHz 1998 Mbps effective | Memory Clock | 957 MHz 3.8 Gbps effective |
| 576 MHz | GPU Clock | 776 MHz |
Render Config
| 192 | Shading Units | 288 |
| 64 | TMUs | 48 |
| 28 | ROPs | 24 |
| 224 KB | L2 Cache | 384 KB |
| 24 | SM Count | 6 |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 267 mm 10.5 inches | Length | 210 mm 8.3 inches |
| 182 W | Thermal design power (TDP) | 102 W |
| 450 W | Suggested PSU | 300 W |
| 2x DVI 1x S-Video | Display Connectors | 2x DVI 1x mini-HDMI |
API support
| 11.1 (10_0) | DirectX | 12 (11_0) |
| 3.3 | OpenGL | 4.6 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.0 | Shader Model | 5.1 |
| 1.3 | CUDA | 2.1 |