GeForce GTX 980M vs Radeon R7 M260X

Intro

Compare all of that to the Radeon R7 M260X, which features a core clock speed of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 980M should in theory be much faster than the Radeon R7 M260X in general. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The GeForce GTX 980M is quite a bit (about 403%) better at AF than the Radeon R7 M260X. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 79848 (403%)

Pixel Rate

The GeForce GTX 980M should be much (more or less 907%) better at FSAA than the Radeon R7 M260X, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 59832 (907%)

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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed 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 this number, the better the 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 number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.