Radeon HD 6850 1440SP Edition vs GeForce 820A

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Primary details

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

Place in the ranking994not rated
Place by popularitynot in top-100not in top-100
Power efficiency6.69no data
ArchitectureFermi 2.0 (2010−2014)TeraScale 2 (2009−2015)
GPU code nameGF117Cypress
Market segmentLaptopDesktop
Release date17 March 2014 (10 years ago)21 August 2012 (12 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 cores961440
Core clock speed775 MHz725 MHz
Number of transistors585 million2,154 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)15 Watt151 Watt
Texture fill rate12.4052.20
Floating-point processing power0.2976 TFLOPS2.088 TFLOPS
ROPs832
TMUs1672

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 2.0 x16
Lengthno data241 mm
Widthno data2-slot
Supplementary power connectorsno data2x 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 typeDDR3GDDR5
Maximum RAM amount1 GB1 GB
Memory bus width64 Bit256 Bit
Memory clock speed900 MHz1000 MHz
Memory bandwidth14.4 GB/s128.0 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 outputs2x DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (11_0)11.2 (11_0)
Shader Model5.15.0
OpenGL4.64.4
OpenCL1.11.2
VulkanN/AN/A
CUDA2.1-

Pros & cons summary


Recency 17 March 2014 21 August 2012
Chip lithography 28 nm 40 nm
Power consumption (TDP) 15 Watt 151 Watt

GeForce 820A has an age advantage of 1 year, a 42.9% more advanced lithography process, and 906.7% lower power consumption.

We couldn't decide between GeForce 820A and Radeon HD 6850 1440SP Edition. We've got no test results to judge.

Be aware that GeForce 820A is a notebook card while Radeon HD 6850 1440SP Edition 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 820A
GeForce 820A
AMD Radeon HD 6850 1440SP Edition
Radeon HD 6850 1440SP Edition

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

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2.8 42 votes

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2.8 26 votes

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Questions & comments

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