NVIDIA GeForce GTX 550 Ti vs NVIDIA GeForce GT 640
What is the difference between NVIDIA GeForce GTX 550 Ti and NVIDIA GeForce GT 640. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GF116 | GPU Name | GK107 |
| GF116-400-A1 | Model number | GK107-300-A2 |
| Fermi 2.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 28 nm |
| 1,170 million | Transistors | 1,270 million |
| 238 mm² | Die Size | 118 mm² |
Graphics Card
| Mar 15th, 2011 | Release Date | Jun 5th, 2012 |
| GeForce 500 | Family | GeForce 600 |
| End-of-life | Production | End-of-life |
| 149 USD | Launch Price | 99 USD |
| GeForce 400 | Predecessor | GeForce 500 |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 1024 MB | Memory Size | 2 GB |
| GDDR5 | Memory Type | DDR3 |
| 192 bit | Memory Bus | 128 bit |
| 98.50 GB/s | Bandwidth | 28.51 GB/s |
Performance
| 7.200 GPixel/s | Pixel fillrate | 7.216 GPixel/s |
| 28.80 GTexel/s | Texture fillrate | 28.86 GTexel/s |
| 691.2 GFLOPS | FP32 (float) performance | 692.7 GFLOPS |
| 57.60 GFLOPS (1:12) | FP64 (double) performance | 28.86 GFLOPS (1:24) |
Clock Speeds
| 1026 MHz 4.1 Gbps effective | Memory Clock | 891 MHz 1782 Mbps effective |
| 900 MHz | GPU Clock | 902 MHz |
Render Config
| 192 | Shading Units | 384 |
| 32 | TMUs | 32 |
| 24 | ROPs | 16 |
| 64 KB (per SM) | L1 Cache | 16 KB (per SMX) |
| 384 KB | L2 Cache | 256 KB |
Board Design
| Dual-slot | Slot Width | Single-slot |
| 210 mm 8.3 inches | Length | 145 mm 5.7 inches |
| 116 W | Thermal design power (TDP) | 65 W |
| 300 W | Suggested PSU | 250 W |
| 2x DVI 1x mini-HDMI | Display Connectors | 1x DVI 1x HDMI 1x DisplayPort |
| 1x 6-pin | Power Connectors | None |
| P1050 | Board Number | P2011 |
API support
| 12 (11_0) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.1 | OpenCL | 3.0 |
| N/A | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |
| 2.1 | CUDA | 3.0 |