NVIDIA · Kepler (derived from codename prefix) · 2012
GeForce GT 640
GeForce GT 640: 2 GB DDR3, 65 W, 384 CUDA cores. Launched June 5, 2012 at $99.
- Memory
- 2 GB
- Power
- 65 W
- Bus width
- 128 bit
Memory2 GB
2 of 94 in GeForce GT
Power65 W
15 of 91 by higher draw in GeForce GT
CUDA cores384
1 of 104 in GeForce GT
Launch price$99
3 of 23 in GeForce GT
Current market
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Specifications
Memory
- Capacity
- 2 GB
- Memory type
- DDR3
- Bus width
- 128 bit
- Memory clock
- 891 MHz
- Bandwidth
- 28.51 GB/s
Compute
- CUDA cores
- 384
- SM count
- 2
- TMUs
- 32
- ROPs
- 16
- FP32
- 692.736 GFLOPS
- FP64
- 28.864 GFLOPS
- Pixel fill rate
- 7.22 GP/s
- Texture fill rate
- 28.86 GT/s
Clocks
- Boost clock
- 902 MHz
Board
- TDP
- 65 W
- Bus interface
- PCIe 3.0 x16
- External power required
- No
- Form factor
- desktop
- Launch MSRP
- 99 USD
Physical
- Architecture
- Kepler (derived from codename prefix)
- Codename
- GK107-300-A2
- Process
- 28 nm
- Transistors
- 1.27 billion
- Die size
- 118 mm²
- Series
- GeForce GT
- Launch date
- June 5, 2012
Not recorded by the source: generation and base clock.
Die figure
Silicon, made visible
Die area is drawn against the largest recorded die in the catalog. Shader dots use a labeled, card-specific ratio so both early and modern GPUs remain legible.
Catalog context
Within its series, the GeForce GT 640 ranks 9th of 54 for FP32 throughput and second of 94 for memory capacity. Its 65 W TDP is within the 75 W PCIe slot-power ceiling.
Source: Wikipedia, revision 1369488585 · catalog loaded 2026-08-16