GeForce GTX 580 vs Radeon R7 M260X

Intro

Compare that to the Radeon R7 M260X, which makes use of a 28 nm design. AMD has clocked the core speed at 825 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this model. It features 384 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 580 should be a lot faster than the Radeon R7 M260X overall. (explain)

GeForce GTX 580		192384 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 128384 (201%)

Texel Rate

The GeForce GTX 580 will be much (about 150%) better at AF than the Radeon R7 M260X. (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 29608 (150%)

Pixel Rate

The GeForce GTX 580 should be much (about 461%) better at FSAA than the Radeon R7 M260X, and also able to handle higher resolutions better. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 30456 (461%)

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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the bus 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 ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.