GeForce GTX 950M vs Radeon R7 M260X

Intro

Compare those specs to the Radeon R7 M260X, which has a clock speed of 825 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 M260X should be a lot faster than the GeForce GTX 950M overall. (explain)

Radeon R7 M260X		64000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 32000 (100%)

Texel Rate

The GeForce GTX 950M is a lot (approximately 85%) more effective at anisotropic filtering than the Radeon R7 M260X. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 16760 (85%)

Pixel Rate

The GeForce GTX 950M should be quite a bit (more or less 122%) more effective at full screen anti-aliasing than the Radeon R7 M260X, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 8024 (122%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.