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GeForce 820M vs Radeon HD 5550

Intro

The GeForce 820M has a GPU core speed of 719 MHz, and the 2048 MB of DDR3 memory is set to run at 1000 MHz through a 64-bit bus. It also is comprised of 96 Stream Processors, 16 TAUs, and 4 Raster Operation Units.

Compare those specs to the Radeon HD 5550, which uses a 40 nm design. AMD has clocked the core speed at 550 MHz. The DDR2 RAM works at a frequency of 400 MHz on this card. It features 320(64x5) SPUs along with 16 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce 820M should perform much faster than the Radeon HD 5550 in general. (explain)

GeForce 820M 16000 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 820M will be a lot (about 31%) more effective at anisotropic filtering than the Radeon HD 5550. (explain)

GeForce 820M 11504 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 2704 (31%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5550 is a better choice, and very much so. (explain)

Radeon HD 5550 4400 Mpixels/sec
GeForce 820M 2876 Mpixels/sec
Difference: 1524 (53%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 820M

Amazon.com

Check prices at:

Radeon HD 5550

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 820M Radeon HD 5550
Manufacturer nVidia AMD
Year February 2014 February 9, 2010
Code Name GF117 Redwood LE
Memory 2048 MB 512 MB
Core Speed 719 MHz 550 MHz
Memory Speed 2000 MHz 800 MHz
Power (Max TDP) 15 watts (Unknown) watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 11504 Mtexels/sec 8800 Mtexels/sec
Pixel Rate 2876 Mpixels/sec 4400 Mpixels/sec
Unified Shaders 96 320(64x5)
Texture Mapping Units 16 16
Render Output Units 4 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 627 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 3.2

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce 820M

Amazon.com

Check prices at:

Radeon HD 5550

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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