Radeon HD 7970 vs Radeon R7 M260X

Intro

Compare those specs to the Radeon R7 M260X, which has GPU core speed of 825 MHz, and 2048 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 7970 should perform a lot faster than the Radeon R7 M260X in general. (explain)

Radeon HD 7970		264000 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 200000 (313%)

Texel Rate

The Radeon HD 7970 is quite a bit (more or less 498%) better at anisotropic filtering than the Radeon R7 M260X. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 98600 (498%)

Pixel Rate

The Radeon HD 7970 will be much (about 348%) better at AA than the Radeon R7 M260X, and able to handle higher screen resolutions more effectively. (explain)

Radeon HD 7970		29600 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 23000 (348%)

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 max amount of information (measured in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.