Radeon R7 Graphics vs GeForce 840M

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Primary details

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

Place in the ranking795not rated
Place by popularitynot in top-100not in top-100
Power efficiency5.88no data
ArchitectureMaxwell (2014−2017)GCN 2.0 (2013−2017)
GPU code nameGM108Spectre
Market segmentLaptopDesktop
Release date12 March 2014 (10 years ago)11 January 2014 (10 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 cores384512
Core clock speed1029 MHz720 MHz
Boost clock speed1124 MHz980 MHz
Number of transistorsno data2,410 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)33 Watt15 Watt
Texture fill rate17.9831.36
Floating-point processing power0.8632 TFLOPS1.004 TFLOPS
ROPs88
TMUs1632

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 x8IGP
Widthno dataIGP

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 amount4 GBSystem Shared
Memory bus width64 BitSystem Shared
Memory clock speed1001 MHzSystem Shared
Memory bandwidth16.02 GB/sno data
Shared memory-no 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.

GPU Boost2.0no data
Optimus+-
GameWorks+-

API compatibility

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

DirectX12 (11_0)12 (12_0)
Shader Model5.16.0
OpenGL4.54.6
OpenCL1.22.0
Vulkan1.1.1261.2.131
CUDA+-

Pros & cons summary


Recency 12 March 2014 11 January 2014
Power consumption (TDP) 33 Watt 15 Watt

GeForce 840M has an age advantage of 2 months.

R7 Graphics, on the other hand, has 120% lower power consumption.

We couldn't decide between GeForce 840M and Radeon R7 Graphics. We've got no test results to judge.

Be aware that GeForce 840M is a notebook card while Radeon R7 Graphics 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 840M
GeForce 840M
AMD Radeon R7 Graphics
Radeon R7 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.


3.4 938 votes

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3.3 1424 votes

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Questions & comments

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