NVIDIA GeForce GT 640 OEM 1 GB
GK107
Graphics Processor
384
Cores
32
TMUs
16
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
Graphics Processor
- GPU Name
- GK107
- GPU Variant
- GK107-300-A2
- Architecture
- Kepler
- Foundry
- TSMC
- Process Size
- 28 nm
- Transistors
- 1,270 million
- Die Size
- 118 mm²
Graphics Card
- Release Date
- Apr 24th, 2012
- Generation
- GeForce 600
- Production
- End-of-life
- Bus Interface
- PCIe 3.0 x16
Clock Speeds
- GPU Clock
797 MHz
954 MHz (+20%)
- Memory Clock
-
891 MHz
1250 MHz (+40%)
1782 MHz effective
5000 MHz effective
Memory
- Memory Size
-
2 GB
1024 MB
- Memory Type
DDR3
GDDR5
- Memory Bus
- 128 bit
- Bandwidth
-
28.51 GB/s
80.00 GB/s
Render Config
- Shading Units
- 384
- TMUs
- 32
- ROPs
- 16
- SMX Count
- 2
Theoretical Performance
- Pixel Rate
-
6.376 GPixel/s
7.632 GPixel/s
- Texture Rate
-
25.50 GTexel/s
30.53 GTexel/s
- FP32 (float) performance
-
612.1 GFLOPS
732.7 GFLOPS
- FP64 (double) performance
-
25.50 GFLOPS
30.53 GFLOPS (1:24)
Board Design
- Slot Width
- Single-slot
- Length
- 5.7 inches
145 mm
- TDP
- 50 W
- Outputs
- 1x DVI
1x HDMI
1x DisplayPort
- Power Connectors
- None
- Board Number
- P2010
Graphics Features
- DirectX
- 12.0 (11_0)
- OpenGL
- 4.6
- OpenCL
- 1.2
- Vulkan
- 1.1.92
- CUDA
- 3.0
- Shader Model
- 5.1
Card Notes
| OEM DPUs: 128 SFUs: 64 Variant Memory: 4096MB DDR3 Variant Memory: 1024MB GDDR5 |
GK107 GPU Notes
| PureVideo HD: VP5 VDPAU: Feature Set D |
Other retail boards based on this design (2)
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
NVIDIA GeForce GT 640 OEM 1 GB
|
954 MHz | 1250 MHz | 1024 MB, GDDR5 |
NVIDIA GeForce GT 640 OEM 2 GB
|
797 MHz | 891 MHz |