GeForce GTX 275 vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which features a core clock speed of 1100 MHz and a GDDR5 memory frequency of 1625 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It features 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
GeForce GTX 275		219 Watts
	Difference: 104 Watts (90%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 275 should theoretically be much better than the Radeon R7 260X in general. (explain)

GeForce GTX 275		127008 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 23008 (22%)

Texel Rate

The Radeon R7 260X should be much (about 22%) better at anisotropic filtering than the GeForce GTX 275. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 10960 (22%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 275 is the winner, though not by far. (explain)

GeForce GTX 275		17724 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 124 (1%)

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 largest amount of data (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 interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core 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 is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.