GeForce GT 640
NVIDIA
Catalog context
Within its series, the GeForce GT 640 ranks 9th of 53 for FP32 throughput and second of 93 for memory capacity. Its 65 W TDP is within the 75 W PCIe slot-power ceiling. The source does not record generation and base clock for this variant.
| Launch date | June 5, 2012 |
|---|---|
| Series | GeForce GT |
| Generation | — |
| Codename | GK107-300-A2 |
| Form factor | desktop |
| Architecture | Kepler (derived from codename prefix) |
| Process | 28 nm |
| Transistors | 1.27 billion |
| Die size | 118 mm² |
| Shaders | 384 |
| TMUs | 32 |
| ROPs | 16 |
| SM count | 2 |
| Base clock | — |
| Boost clock | 902 MHz |
| Memory clock | 891 MHz |
| Memory | 2 GB |
| Memory type | DDR3 |
| Bus width | 128 bit |
| Bandwidth | 28.51 GB/s |
| Pixel fill rate | 7.22 GP/s |
| Texture fill rate | 28.86 GT/s |
| FP32 | 692.736 GFLOPS |
| FP64 | 28.864 GFLOPS |
| TDP | 65 W |
| Bus interface | PCIe 3.0 x16 |
| External power required | No |
| Launch MSRP | 99 USD |
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Source: Wikipedia, revision 1369488585 · catalog loaded 2026-08-16