Radeon RX 640 vs R7 Graphics

Primary details

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

Place in the rankingnot rated615
Place by popularitynot in top-100not in top-100
Power efficiencyno data7.29
ArchitectureGCN 2.0 (2013−2017)GCN 4.0 (2016−2020)
GPU code nameSpectrePolaris 23
Market segmentDesktopLaptop
Release date11 January 2014 (10 years ago)13 May 2019 (5 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 cores512640
Core clock speed720 MHz1082 MHz
Boost clock speed980 MHz1218 MHz
Number of transistors2,410 million2,200 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)15 Watt50 Watt
Texture fill rate31.3648.72
Floating-point processing power1.004 TFLOPS1.559 TFLOPS
ROPs816
TMUs3240

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 sizeno datalarge
InterfaceIGPPCIe 3.0 x8
WidthIGPno data
Supplementary power connectorsno dataNone

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 typeSystem SharedGDDR5
Maximum RAM amountSystem Shared2 GB
Memory bus widthSystem Shared64 Bit
Memory clock speedSystem Shared1500 MHz
Memory bandwidthno data48 GB/s
Shared memoryno 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 ConnectorsNo outputsNo outputs

Supported technologies

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

FreeSync-+

API compatibility

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

DirectX12 (12_0)12 (12_0)
Shader Model6.06.4
OpenGL4.64.6
OpenCL2.02.0
Vulkan1.2.1311.2.131

Pros & cons summary


Recency 11 January 2014 13 May 2019
Chip lithography 28 nm 14 nm
Power consumption (TDP) 15 Watt 50 Watt

R7 Graphics has 233.3% lower power consumption.

RX 640, on the other hand, has an age advantage of 5 years, and a 100% more advanced lithography process.

We couldn't decide between Radeon R7 Graphics and Radeon RX 640. We've got no test results to judge.

Be aware that Radeon R7 Graphics is a desktop card while Radeon RX 640 is a notebook 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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AMD Radeon R7 Graphics
Radeon R7 Graphics
AMD Radeon RX 640
Radeon RX 640

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.


3.3 1377 votes

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3.2 255 votes

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Questions & comments

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