Radeon R7 M260X vs Radeon R9 M375

Intro

Compare all of that to the Radeon R9 M375, which comes with GPU core speed of 1015 MHz, and 4096 MB of DDR3 RAM running at 1100 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 M260X should theoretically be much better than the Radeon R9 M375 overall. (explain)

Radeon R7 M260X		64000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 28800 (82%)

Texel Rate

The Radeon R9 M375 is a lot (approximately 105%) more effective at AF than the Radeon R7 M260X. (explain)

Radeon R9 M375		40600 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 20800 (105%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M375 is a better choice, and very much so. (explain)

Radeon R9 M375		16240 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 9640 (146%)

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 max amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If 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 can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.