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GeForce 920M vs Radeon HD 4550 512MB

Intro

The GeForce 920M comes with a clock frequency of 954 MHz and a DDR3 memory speed of 900 MHz. It also features a 64-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 32 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 4550 512MB, which comes with a core clock speed of 600 MHz and a GDDR3 memory speed of 800 MHz. It also features a 64-bit bus, and makes use of 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

Memory Bandwidth

Theoretically, the GeForce 920M should be just a bit faster than the Radeon HD 4550 512MB in general. (explain)

GeForce 920M 14400 MB/sec
Radeon HD 4550 512MB 12800 MB/sec
Difference: 1600 (13%)

Texel Rate

The GeForce 920M should be a lot (approximately 536%) more effective at texture filtering than the Radeon HD 4550 512MB. (explain)

GeForce 920M 30528 Mtexels/sec
Radeon HD 4550 512MB 4800 Mtexels/sec
Difference: 25728 (536%)

Pixel Rate

The GeForce 920M should be quite a bit (more or less 218%) more effective at AA than the Radeon HD 4550 512MB, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce 920M 7632 Mpixels/sec
Radeon HD 4550 512MB 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

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Radeon HD 4550 512MB

Amazon.com

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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 512MB
Manufacturer nVidia AMD
Year March 12 2015 Sep 30, 2008
Code Name GK208 RV710
Memory 2048 MB 512 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 GDDR3
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: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce 920M

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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