GeForce GTX 980M vs Radeon HD 5570

Intro

Compare all of that to the Radeon HD 5570, which makes use of a 40 nm design. AMD has set the core speed at 650 MHz. The DDR3 memory works at a speed of 900 MHz on this card. It features 400(80x5) SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 980M		100 Watts
	Difference: 57 Watts (133%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980M should theoretically be much superior to the Radeon HD 5570 in general. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The GeForce GTX 980M will be a lot (more or less 667%) faster with regards to texture filtering than the Radeon HD 5570. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 86648 (667%)

Pixel Rate

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

GeForce GTX 980M		66432 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 61232 (1178%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 are processed per second. This figure is calculated 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.