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GeForce 820M vs Radeon HD 4550 512MB

Intro

The GeForce 820M comes with a clock frequency of 719 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 64-bit bus, and makes use of a 28 nm design. It is made up of 96 SPUs, 16 TAUs, and 4 ROPs.

Compare those specs to the Radeon HD 4550 512MB, which features a core clock frequency of 600 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 64-bit memory bus, and uses a 55 nm design. It is comprised 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

The GeForce 820M should in theory be a lot faster than the Radeon HD 4550 512MB overall. (explain)

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

Texel Rate

The GeForce 820M will be quite a bit (more or less 140%) more effective at anisotropic filtering than the Radeon HD 4550 512MB. (explain)

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

Pixel Rate

The GeForce 820M should be a bit (about 20%) more effective at full screen anti-aliasing than the Radeon HD 4550 512MB, and able to handle higher resolutions without losing too much performance. (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

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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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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