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GeForce 920M vs Radeon HD 4550 256MB

Intro

The GeForce 920M makes use of a 28 nm design. nVidia has set the core speed at 954 MHz. The DDR3 memory runs at a frequency of 900 MHz on this specific model. It features 384 SPUs along with 32 TAUs and 8 ROPs.

Compare that to the Radeon HD 4550 256MB, which makes use of a 55 nm design. AMD has set the core speed at 600 MHz. The DDR3 RAM works at a frequency of 800 MHz on this model. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 920M, in theory, should perform a small bit faster than the Radeon HD 4550 256MB in general. (explain)

GeForce 920M 14400 MB/sec
Radeon HD 4550 256MB 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 920M will be much (approximately 536%) better at AF than the Radeon HD 4550 256MB. (explain)

GeForce 920M 30528 Mtexels/sec
Radeon HD 4550 256MB 4800 Mtexels/sec
Difference: 25728 (536%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 920M is a better choice, and very much so. (explain)

GeForce 920M 7632 Mpixels/sec
Radeon HD 4550 256MB 2400 Mpixels/sec
Difference: 5232 (218%)

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 920M

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 920M Radeon HD 4550 256MB
Manufacturer nVidia AMD
Year March 12 2015 Sep 30, 2008
Code Name GK208 RV710
Memory 2048 MB 256 MB
Core Speed 954 MHz 600 MHz
Memory Speed 1800 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 25 watts
Bandwidth 14400 MB/sec 12800 MB/sec
Texel Rate 30528 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 7632 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 384 80(16x5)
Texture Mapping Units 32 8
Render Output Units 8 4
Bus Type DDR3 DDR3
Bus Width 64-bit 64-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 242 million
Bus PCIe 3.0 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 max amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 920M

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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