GeForce 8800 GTS 640 vs GT 640M

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Primary details

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

Place in the ranking843not rated
Place by popularitynot in top-100not in top-100
Power efficiency5.14no data
ArchitectureKepler (2012−2018)Tesla (2006−2010)
GPU code nameGK107G80
Market segmentLaptopDesktop
Release date22 March 2012 (12 years ago)8 November 2006 (18 years ago)
Launch price (MSRP)no data$449

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 cores38496
Core clock speedUp to 625 MHz513 MHz
Boost clock speed645 MHzno data
Number of transistors1,270 million681 million
Manufacturing process technology28 nm90 nm
Power consumption (TDP)32 Watt143 Watt
Texture fill rate20.0024.62
Floating-point processing power0.48 TFLOPS0.2281 TFLOPS
ROPs1620
TMUs3224

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 sizedno data
Bus supportPCI Express 2.0, PCI Express 3.0no data
InterfacePCIe 3.0 x16PCIe 1.0 x16
Lengthno data267 mm
Widthno data2-slot
Supplementary power connectorsno data1x 6-pin

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 typeDDR3\GDDR5GDDR3
Maximum RAM amount2 GB640 MB
Memory bus width128bit320 Bit
Memory clock speed900 MHz792 MHz
Memory bandwidthUp to 64.0 GB/s63.36 GB/s
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 ConnectorsNo outputs2x DVI, 1x S-Video
HDMI+-
HDCP+-
Maximum VGA resolutionUp to 2048x1536no data

Supported technologies

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

3D Blu-Ray+-
Optimus+-

API compatibility

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

DirectX12 API11.1 (10_0)
Shader Model5.14.0
OpenGL4.53.3
OpenCL1.11.1
Vulkan1.1.126N/A
CUDA++

Pros & cons summary


Recency 22 March 2012 8 November 2006
Maximum RAM amount 2 GB 640 MB
Chip lithography 28 nm 90 nm
Power consumption (TDP) 32 Watt 143 Watt

GT 640M has an age advantage of 5 years, a 220% higher maximum VRAM amount, a 221.4% more advanced lithography process, and 346.9% lower power consumption.

We couldn't decide between GeForce GT 640M and GeForce 8800 GTS 640. We've got no test results to judge.

Be aware that GeForce GT 640M is a notebook card while GeForce 8800 GTS 640 is a desktop one.


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 640M
GeForce GT 640M
NVIDIA GeForce 8800 GTS 640
GeForce 8800 GTS 640

Comparisons with similar GPUs

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Community ratings

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