GeForce GTX 980M vs Radeon R7 M260X

Intro

Compare those specs to the Radeon R7 M260X, which comes with GPU clock speed of 825 MHz, and 2048 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 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 perform much faster than the Radeon R7 M260X overall. (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 (approximately 403%) faster with regards to anisotropic filtering 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 will be quite a bit (approximately 907%) better at AA than the Radeon R7 M260X, and able to handle higher screen resolutions without losing too much performance. (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 max amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.