Radeon R7 M260X vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which comes with GPU clock speed of 750 MHz, and 4096 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M295X should perform a lot faster than the Radeon R7 M260X in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 112000 (175%)

Texel Rate

The Radeon R9 M295X is a lot (more or less 385%) faster with regards to AF than the Radeon R7 M260X. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 76200 (385%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M295X is the winner, by a large margin. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 17400 (264%)

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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at 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 write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.