1 GB
GDDR51046 MHz
Boost Clock49 W
TDP28 nm
ProcessShare on Social Media
Share GeForce GT 640 Rev. 2 specifications with othersTechnical Specifications
Core Specifications
Architecture:
Kepler 2.0
Process Size:
28 nm
Base Clock:
1046 MHz
Boost Clock:
1046 MHz
Shader Units:
384
TMUs:
32
ROPs:
8
Memory & Performance
Memory Size:
1 GB
Memory Type:
GDDR5
Memory Bandwidth:
40.1 GB/s
Bus Interface:
PCIe 2.0 x8
TDP:
49 W
Suggested PSU:
200 W
Cache & Die Information
L1 Cache:
16 KB
L2 Cache:
0.5 MB
Die Size:
87 mm²
Transistors:
1.0 billion
Transistor Density:
11.7 million/mm²
Physical Specifications
Board Length:
145 mm
Power Connectors:
None
Display Outputs:
1x DVI, 1x HDMI 1.4a, 1x VGA
Quick Facts
Performance
Pixel Fill Rate
8.4 GPixel/s
Texture Fill Rate
33.5 GTexel/s
FP32 Performance
0.8 TFLOPS
CUDA Toolkit Compatibility
Cuda Compute
3.5
sm_35
Architecture
Kepler
Supported CUDA Toolkits
5.0
5.5
6.0
6.5
7.0
7.5
8.0
9.0
9.1
9.2
Note: Support dropped in CUDA 10.0
Kepler architecture (GK110/GK208) - Support dropped in CUDA 10.0