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GeForce 820M vs Radeon HD 4550 512MB

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 Texture Address Units, and 4 ROPs.

Compare those specs to the Radeon HD 4550 512MB, which comes with a clock frequency of 600 MHz and a GDDR3 memory speed of 800 MHz. It also makes use of a 64-bit memory bus, and uses a 55 nm design. It is made up of 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M 15 Watts
Radeon HD 4550 512MB 25 Watts
Difference: 10 Watts (67%)

Memory Bandwidth

In theory, the GeForce 820M is 25% faster than the Radeon HD 4550 512MB in general, due to its higher data rate. (explain)

GeForce 820M 16000 MB/sec
Radeon HD 4550 512MB 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 820M should be a lot (about 140%) more effective at AF than the Radeon HD 4550 512MB. (explain)

GeForce 820M 11504 Mtexels/sec
Radeon HD 4550 512MB 4800 Mtexels/sec
Difference: 6704 (140%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 820M is a better choice, though not by far. (explain)

GeForce 820M 2876 Mpixels/sec
Radeon HD 4550 512MB 2400 Mpixels/sec
Difference: 476 (20%)

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

Display Prices

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GeForce 820M

Amazon.com

Check prices at:

Radeon HD 4550 512MB

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 4550 512MB
Manufacturer nVidia AMD
Year February 2014 Sep 30, 2008
Code Name GF117 RV710
Memory 2048 MB 512 MB
Core Speed 719 MHz 600 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 15 watts 25 watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 11504 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 2876 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 96 80(16x5)
Texture Mapping Units 16 8
Render Output Units 4 4
Bus Type DDR3 GDDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 242 million
Bus PCIe 2.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce 820M

Amazon.com

Check prices at:

Radeon HD 4550 512MB

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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