NVIDIA · Fermi (derived from codename prefix) · 2012
GeForce GT 640 OEM Rebrand
GeForce GT 640 OEM Rebrand: 1,536 MB DDR3, 75 W, 144 CUDA cores. Launched April 24, 2012.
- Memory
- 1,536 MB
- Power
- 75 W
- Bus width
- 192 bit
Memory1,536 MB
29 of 94 in GeForce GT
Power75 W
4 of 91 by higher draw in GeForce GT
CUDA cores144
33 of 104 in GeForce GT
Current market
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Specifications
Memory
- Capacity
- 1,536 MB
- Memory type
- DDR3
- Bus width
- 192 bit
- Memory clock
- 800 MHz
- Bandwidth
- 38.4 GB/s
Compute
- CUDA cores
- 144
- SM count
- 3
- TMUs
- 24
- ROPs
- 24
- FP32
- 414.72 GFLOPS
- Pixel fill rate
- 17.28 GP/s
- Texture fill rate
- 17.28 GT/s
Clocks
- Boost clock
- 720 MHz
Board
- TDP
- 75 W
- Bus interface
- PCIe 2.0 x16
- External power required
- No
- Form factor
- desktop
Physical
- Architecture
- Fermi (derived from codename prefix)
- Codename
- GF116-150-A1
- Process
- 40 nm
- Transistors
- 1.17 billion
- Die size
- 238 mm²
- Series
- GeForce GT
- Launch date
- April 24, 2012
Not recorded by the source: generation, base clock, fp64 and launch msrp.
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 OEM Rebrand ranks 19th of 54 for FP32 throughput and 29th of 94 for memory capacity. Its 75 W TDP is within the 75 W PCIe slot-power ceiling.
Source: Wikipedia, revision 1369488585 · catalog loaded 2026-08-16