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GeForce 820M vs Radeon HD 5550

Intro

The GeForce 820M comes with core speeds of 719 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.

Compare all of that 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 speed of 400 MHz on this particular card. It features 320(64x5) SPUs along with 16 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 820M should theoretically 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 much (more or less 31%) faster with regards to anisotropic filtering than the Radeon HD 5550. (explain)

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

Pixel Rate

The Radeon HD 5550 should be much (more or less 53%) faster with regards to anti-aliasing than the GeForce 820M, and should be able to handle higher screen resolutions without slowing down too much. (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: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to 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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