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GeForce 820M vs Radeon HD 4550 256MB

Intro

The GeForce 820M comes with a GPU core clock speed of 719 MHz, and the 2048 MB of DDR3 RAM is set to run at 1000 MHz through a 64-bit bus. It also features 96 Stream Processors, 16 Texture Address Units, and 4 ROPs.

Compare that to the Radeon HD 4550 256MB, which comes with a core clock frequency of 600 MHz and a DDR3 memory frequency of 800 MHz. It also makes use of a 64-bit memory bus, and uses a 55 nm design. It features 80(16x5) SPUs, 8 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M 15 Watts
Radeon HD 4550 256MB 25 Watts
Difference: 10 Watts (67%)

Memory Bandwidth

Performance-wise, the GeForce 820M should theoretically be quite a bit superior to the Radeon HD 4550 256MB in general. (explain)

GeForce 820M 16000 MB/sec
Radeon HD 4550 256MB 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The GeForce 820M should be a lot (approximately 140%) faster with regards to texture filtering than the Radeon HD 4550 256MB. (explain)

GeForce 820M 11504 Mtexels/sec
Radeon HD 4550 256MB 4800 Mtexels/sec
Difference: 6704 (140%)

Pixel Rate

The GeForce 820M will be a little bit (more or less 20%) better at anti-aliasing than the Radeon HD 4550 256MB, and also should be able to handle higher resolutions more effectively. (explain)

GeForce 820M 2876 Mpixels/sec
Radeon HD 4550 256MB 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 256MB

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 256MB
Manufacturer nVidia AMD
Year February 2014 Sep 30, 2008
Code Name GF117 RV710
Memory 2048 MB 256 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 DDR3
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 MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video 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 that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 820M

Amazon.com

Check prices at:

Radeon HD 4550 256MB

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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