NVIDIA · Kepler (derived from codename prefix) · 2012
GeForce GTX 660
GeForce GTX 660: 2 GB GDDR5, 140 W, 960 CUDA cores. Launched September 6, 2012 at $229.
- Memory
- 2 GB
- Power
- 140 W
- Bus width
- 192 bit
Memory2 GB
64 of 143 in GeForce GTX
Power140 W
73 of 154 by higher draw in GeForce GTX
CUDA cores960
68 of 158 in GeForce GTX
Launch price$229
58 of 92 in GeForce GTX
Current market
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Specifications
Memory
- Capacity
- 2 GB
- Memory type
- GDDR5
- Bus width
- 192 bit
- Memory clock
- 1,502 MHz
- Bandwidth
- 144.2 GB/s
Compute
- CUDA cores
- 960
- SM count
- 5
- TMUs
- 80
- ROPs
- 24
- FP32
- 1,505.28 GFLOPS
- FP64
- 62.72 GFLOPS
- Pixel fill rate
- 23.52 GP/s
- Texture fill rate
- 62.72 GT/s
Clocks
- Boost clock
- 980 MHz
Board
- TDP
- 140 W
- Bus interface
- PCIe 3.0 x16
- External power required
- Yes
- Form factor
- desktop
- Launch MSRP
- 229 USD
Physical
- Architecture
- Kepler (derived from codename prefix)
- Codename
- GK106-400-A1
- Process
- 28 nm
- Transistors
- 2.54 billion
- Die size
- 221 mm²
- Series
- GeForce GTX
- Launch date
- September 6, 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 GTX 660 ranks 73rd of 121 for FP32 throughput and 64th of 143 for memory capacity. Its 140 W TDP is above the 75 W PCIe slot-power ceiling.
Source: Wikipedia, revision 1369488585 · catalog loaded 2026-08-16