GeForce GT 640M LE 1 GB DDR3

Released in March 2012, NVIDIA GeForce GT 640M LE 1 GB DDR3 mobile Graphics Processing Unit is built upon Fermi architecture, and is manufactured on 40 nm technology. The card has 762 MHz graphics clock frequency. Furthermore, it has 96 CUDA cores, 4 ROPs, along with 16 texture units. The GeForce GT 640M LE 1 GB DDR3 embeds 1 GB of DDR3 memory, utilizing 128 bit bus. The memory is clocked at 785 MHz, which results in 25.12 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface. This model has the maximum power consumption of 32 Watt.

Below you will find detailed specifications of the card.

NVIDIA GeForce GT 640M LE 1 GB DDR3 GPU specifications

Name / Brand / Architecture
Manufacturer:	NVIDIA
Model:	GeForce GT **0M LE 1 GB DDR3
Reference card?:	Yes
Target market segment:	Mobile
Die name:	GF108 LP
Architecture:	Fermi
Fabrication process:	40 nm
Transistors:	585 million
Bus interface:	PCI-E 2.0 x 16
Launch date:	March 2012
Frequency
Graphics clock:	762 MHz
BIOS 2 graphics clock:	1524 MHz
Memory specifications
Memory size:	** MB
Memory type:	DDR3
Memory clock:	785 MHz
Memory clock (effective):	1570 MHz
Memory interface width:	128-bit
Memory bandwidth:	25.12 GB/s
Cores / Texture
CUDA:	3.0
CUDA cores:	96
ROPs:	4
Texture units:	16
RAMDACs:	400 MHz
Electric characteristics
Maximum power draw:	32 W
Video features
Maximum digital resolution:	3840 x 2160
Maximum VGA resolution:	2048 x 1536
HDMI:	Yes
Performance
Pixel fill rate:	3.05 Gigapixels/s
Texture fill rate:	12.19 Gigatexels/s
Single presision compute power:	146.3 GFLOPS
Other features / Support
Other features:	3D Vision ? Direct Compute HDCP Optimus PhysX
Open CL support:	Yes
OpenGL support:	4.2
DirectX support:	11.0
Shader model:	5.0

Mobile GPU

NVIDIA GeForce GT 640M LE 1 GB DDR3 GPU specifications

Name / Brand / Architecture

Frequency

Memory specifications

Cores / Texture

Electric characteristics

Video features

Performance

Other features / Support