NVIDIA · Kepler (derived from codename prefix) · 2013
GeForce GTX 645 OEM
GeForce GTX 645 OEM: 1 GB GDDR5, 65 W, 576 CUDA cores. Launched April 22, 2013.
- Memory
- 1 GB
- Power
- 65 W
- Bus width
- 128 bit
Memory1 GB
109 of 143 in GeForce GTX
Power65 W
131 of 154 by higher draw in GeForce GTX
CUDA cores576
97 of 158 in GeForce GTX
Current market
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Specifications
Memory
- Capacity
- 1 GB
- Memory type
- GDDR5
- Bus width
- 128 bit
- Memory clock
- 1,000 MHz
- Bandwidth
- 64 GB/s
Compute
- CUDA cores
- 576
- SM count
- 3
- TMUs
- 48
- ROPs
- 16
- FP32
- 949.248 GFLOPS
- FP64
- 39.552 GFLOPS
- Pixel fill rate
- 13.18 GP/s
- Texture fill rate
- 39.55 GT/s
Clocks
- Boost clock
- 824 MHz
Board
- TDP
- 65 W
- Bus interface
- PCIe 3.0 x16
- External power required
- No
- Form factor
- desktop
Physical
- Architecture
- Kepler (derived from codename prefix)
- Codename
- GK106-200-A1
- Process
- 28 nm
- Transistors
- 2.54 billion
- Die size
- 221 mm²
- Series
- GeForce GTX
- Launch date
- April 22, 2013
Not recorded by the source: generation, base clock 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 GTX 645 OEM ranks 93rd of 121 for FP32 throughput and 109th of 143 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