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GeForce GTX 980M vs Radeon HD 4550 512MB

Intro

The GeForce GTX 980M has a clock speed of 1038 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It features 1536 SPUs, 96 Texture Address Units, and 64 Raster Operation Units.

Compare all that to the Radeon HD 4550 512MB, which comes with clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB 25 Watts
GeForce GTX 980M 100 Watts
Difference: 75 Watts (300%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980M will be 900% faster than the Radeon HD 4550 512MB overall, because of its higher bandwidth. (explain)

GeForce GTX 980M 128000 MB/sec
Radeon HD 4550 512MB 12800 MB/sec
Difference: 115200 (900%)

Texel Rate

The GeForce GTX 980M should be quite a bit (more or less 1976%) more effective at texture filtering than the Radeon HD 4550 512MB. (explain)

GeForce GTX 980M 99648 Mtexels/sec
Radeon HD 4550 512MB 4800 Mtexels/sec
Difference: 94848 (1976%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980M is a better choice, by a large margin. (explain)

GeForce GTX 980M 66432 Mpixels/sec
Radeon HD 4550 512MB 2400 Mpixels/sec
Difference: 64032 (2668%)

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 GTX 980M

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 GTX 980M Radeon HD 4550 512MB
Manufacturer nVidia AMD
Year October 7 2014 Sep 30, 2008
Code Name GM204 RV710
Memory 4096 MB 512 MB
Core Speed 1038 MHz 600 MHz
Memory Speed 4000 MHz 1600 MHz
Power (Max TDP) 100 watts 25 watts
Bandwidth 128000 MB/sec 12800 MB/sec
Texel Rate 99648 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 66432 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 1536 80(16x5)
Texture Mapping Units 96 8
Render Output Units 64 4
Bus Type GDDR5 GDDR3
Bus Width 256-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 megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result 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 amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics 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 the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 980M

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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