NVIDIA GeForce GT 640 Rev. 2: specs and benchmarks

NVIDIA GeForce GT 640 Rev. 2


NVIDIA started GeForce GT 640 Rev. 2 sales 29 May 2013 at a recommended price of 89 USD. This is Kepler 2.0 architecture desktop card based on 28 nm manufacturing process and primarily aimed at office use. 1 GB of GDDR5 memory clocked at 5.01 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 40.06 GB/s.

Compatibility-wise, this is 1-slot card attached via PCIe 2.0 x8 interface. Its manufacturer default version has a length of 145 mm. No additional power connector is required, and power consumption is at 49 Watt.

It provides poor gaming and benchmark performance at 3.28 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of GeForce GT 640 Rev. 2's architecture, market type and release date.
Place in performance rating
Kepler 2.0
Code name
Release date
29 May 2013
Launch price (MSRP)
89 USD
of 14999 (Quadro Plex 7000)

Technical specs

GeForce GT 640 Rev. 2's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GT 640 Rev. 2's performance, but for precise assessment you have to consider its benchmark and gaming test results.
of 8192 (FirePro S9300 X2)
Core clock speed
1046 MHz
Manufacturing process technology
28 nm
of 12
Power consumption (TDP)
49 Watt
of 900 (Tesla S2050)
Texture fill rate
of 20896 (Tesla M10)
Floating-point performance
803.3 gflops

Compatibility, dimensions and requirements

Information on GeForce GT 640 Rev. 2's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
PCIe 2.0 x8
145 mm
Supplementary power connectors

Memory specs

Parameters of memory installed on GeForce GT 640 Rev. 2: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
Maximum RAM amount
1 GB
of 32 (Tesla M10)
Memory bus width
64 Bit
of 8192 (FirePro S9300 X2)
Memory clock speed
5008 MHz
Memory bandwidth
40.06 GB/s
of 11404 (GRID K1)

Video outputs and ports

Types and number of video connectors present on GeForce GT 640 Rev. 2.
Display Connectors
1x DVI, 1x HDMI, 1x VGA


Technological solutions and APIs supported by GeForce GT 640 Rev. 2. You'll probably need this information if you need some particular technology for your purposes.

Video card benchmarks performance

Non-gaming benchmarks performance of GeForce GT 640 Rev. 2. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance

Mining hashrate

Cryptocurrency mining performance of GeForce GT 640 Rev. 2. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
44 Mh/s

Game benchmarks (in FPS)

Let's see how good GeForce GT 640 Rev. 2 is for gaming. Particular gaming benchmark results are measured in FPS, while overall gaming performance is a number in 0-100 range, and the older the game, the less impact it has on the overall grade.
Overall gaming performance

Relative perfomance

Overall GeForce GT 640 Rev. 2 performance compared to its nearest competitors. All GPU types participate.

AMD equivalent

We believe that the nearest equivalent to GeForce GT 640 Rev. 2 from AMD is Radeon HD 4350, which is slower by 1%. and lower by positions 2

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Compare GeForce GT 640 Rev. 2 with others

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Advices and comments

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