GeForce GTX 660 vs Radeon R7 M260X

Intro

Compare all of that to the Radeon R7 M260X, which features clock speeds of 825 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 660 should perform quite a bit faster than the Radeon R7 M260X in general. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 80192 (125%)

Texel Rate

The GeForce GTX 660 should be a lot (more or less 296%) faster with regards to texture filtering than the Radeon R7 M260X. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 58600 (296%)

Pixel Rate

The GeForce GTX 660 should be a lot (about 256%) better at anti-aliasing than the Radeon R7 M260X, and able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 16920 (256%)

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 (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can 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 core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.