Radeon R5 340 OEM vs GeForce GT 820M

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Primary details

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

Place in the ranking989not rated
Place by popularitynot in top-100not in top-100
Power efficiency6.68no data
ArchitectureFermi 2.0 (2010−2014)GCN 1.0 (2011−2020)
GPU code nameGF117Oland
Market segmentLaptopDesktop
Release date27 November 2013 (10 years ago)5 May 2015 (9 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 cores96384
Core clock speed775 MHz730 MHz
Boost clock speedno data780 MHz
Number of transistors585 million950 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)15 Watt65 Watt
Texture fill rate12.4018.72
Floating-point processing power0.2976 TFLOPS0.599 TFLOPS
ROPs88
TMUs1624

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 2.0 x16PCIe 3.0 x8
Lengthno data145 mm
Widthno data1-slot
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 typeDDR3GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width64 Bit64 Bit
Memory clock speed900 MHz1150 MHz
Memory bandwidth14.4 GB/s36.8 GB/s

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 outputs1x DVI, 1x DisplayPort

API compatibility

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

DirectX12 (11_0)12 (11_1)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.11.2
VulkanN/A1.2.131
CUDA2.1-

Pros & cons summary


Recency 27 November 2013 5 May 2015
Power consumption (TDP) 15 Watt 65 Watt

GT 820M has 333.3% lower power consumption.

R5 340 OEM, on the other hand, has an age advantage of 1 year.

We couldn't decide between GeForce GT 820M and Radeon R5 340 OEM. We've got no test results to judge.

Be aware that GeForce GT 820M is a notebook card while Radeon R5 340 OEM 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 820M
GeForce GT 820M
AMD Radeon R5 340 OEM
Radeon R5 340 OEM

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.


3.3 116 votes

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3 53 votes

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Questions & comments

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