Radeon HD 6640G2 vs GeForce GT 240M

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking1213not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.67no data
ArchitectureTesla 2.0 (2007−2013)Terascale 2 (2009−2015)
GPU code nameGT216no data
Market segmentLaptopLaptop
Release date15 June 2009 (15 years ago)14 June 2011 (13 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores48560
Core clock speed550 MHzno data
Number of transistors486 millionno data
Manufacturing process technology40 nm40 nm
Power consumption (TDP)23 Wattno data
Texture fill rate8.800no data
Floating-point processing power0.1162 TFLOPSno data
Gigaflops174no data
ROPs8no data
TMUs16no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop sizemedium sizedmedium sized
Bus supportPCI-E 2.0no data
InterfacePCIe 2.0 x16no data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR3no data
Maximum RAM amount1 GBno data
Memory bus width128 Bitno data
Memory clock speedUp to 600 (DDR2), Up to 1066 (DDR3), Up to 800 (GDDR3) MHzno data
Memory bandwidth25.6 GB/sno data
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsSingle Link DVIDisplayPortDual Link DVIHDMIVGAno data
Multi monitor support+no data
HDMI+-
Maximum VGA resolution2048x1536no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Power management8.0no data

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.1 (10_1)11
Shader Model4.1no data
OpenGL2.1no data
OpenCL1.1no data
VulkanN/A-
CUDA+-

Pros & cons summary


Recency 15 June 2009 14 June 2011

HD 6640G2 has an age advantage of 1 year.

We couldn't decide between GeForce GT 240M and Radeon HD 6640G2. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce GT 240M
GeForce GT 240M
AMD Radeon HD 6640G2
Radeon HD 6640G2

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.1 75 votes

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2 4 votes

Rate Radeon HD 6640G2 on a scale of 1 to 5:

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Questions & comments

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