512 MB
GDDR5745 MHz
Boost Clock32 W
TDP28 nm
ProcessShare on Social Media
Share GeForce GT 640M Mac Edition specifications with othersTechnical Specifications
Core Specifications
Architecture:
Kepler
Process Size:
28 nm
Base Clock:
745 MHz
Boost Clock:
745 MHz
Shader Units:
384
TMUs:
32
ROPs:
8
Memory & Performance
Memory Size:
512 MB
Memory Type:
GDDR5
Memory Bandwidth:
40.0 GB/s
Bus Interface:
PCIe 3.0 x16
TDP:
32 W
Cache & Die Information
L1 Cache:
16 KB
L2 Cache:
0.1 MB
Die Size:
118 mm²
Transistors:
1.3 billion
Transistor Density:
10.8 million/mm²
Physical Specifications
Power Connectors:
None
Quick Facts
Performance
Pixel Fill Rate
6.0 GPixel/s
Texture Fill Rate
23.8 GTexel/s
FP32 Performance
0.6 TFLOPS
CUDA Toolkit Compatibility
Cuda Compute
3.0
sm_30
Architecture
Kepler
Supported CUDA Toolkits
5.0
5.5
6.0
6.5
7.0
7.5
8.0
Note: Support dropped in CUDA 9.0
Kepler architecture (GK104) - Support dropped in CUDA 9.0