The GeForce GT 640M is a bottom-tier laptop gaming GPU released on Mar 22, 2012.

Release Date	TDP	Memory	Memory Type	Memory Bus
Mar 22nd, 2012	32 W	2 GB	DDR3	128-bit

3DMark Type Spy Graphics Score

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GeForce GT 640M Specifications

The GPU's core specifications

General
Release Date	Mar 22nd, 2012
Segment	Laptop
Generation	GeForce 600M
Power Consumption	32 W

Memory
Memory Size	2 GB
Memory Type	DDR3
Memory Bus	128-bit
Memory Bandwidth	28.8 GB/s

Theoretical Performance
Pixel Fillrate	5.672 GPixel/s
Texture Fillrate	22.69 GTexel/s
FP32	544.5 GFLOPS

GeForce GT 640M in My Games

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