Radeon R2 Graphics vs GeForce GT 640

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Primary details

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

Place in the ranking769not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.20no data
Power efficiency3.23no data
ArchitectureKepler (2012−2018)GCN 2.0 (2013−2017)
GPU code nameGK107Beema
Market segmentDesktopDesktop
Release date5 June 2012 (12 years ago)27 February 2015 (9 years ago)
Launch price (MSRP)$99 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores384128
Core clock speed902 MHz351 MHz
Number of transistors1,270 million930 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)65 Watt15 Watt
Texture fill rate28.862.808
Floating-point processing power0.6927 TFLOPS0.08986 TFLOPS
ROPs164
TMUs328

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).

InterfacePCIe 3.0 x16IGP
Length145 mmno data
Width1-slotIGP
Supplementary power connectorsNoneno 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 typeDDR3System Shared
Maximum RAM amount2 GBSystem Shared
Memory bus width128 BitSystem Shared
Memory clock speed891 MHzSystem Shared
Memory bandwidth28.51 GB/sno data

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 Connectors1x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 (11_0)12 (12_0)
Shader Model5.16.3
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.1.1261.2.131
CUDA3.0-

Pros & cons summary


Recency 5 June 2012 27 February 2015
Power consumption (TDP) 65 Watt 15 Watt

R2 Graphics has an age advantage of 2 years, and 333.3% lower power consumption.

We couldn't decide between GeForce GT 640 and Radeon R2 Graphics. 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 640
GeForce GT 640
AMD Radeon R2 Graphics
Radeon R2 Graphics

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


3.4 1576 votes

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2.5 470 votes

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Questions & comments

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