GeForce GTX 275 vs Radeon R7 260X

Intro

Compare those specs to the Radeon R7 260X, which comes with GPU clock speed of 1100 MHz, and 2048 MB of GDDR5 RAM set to run at 1625 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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

Performance-wise, 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 is a lot (about 22%) faster with regards to texture filtering than the GeForce GTX 275. (explain)

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

Pixel Rate

The GeForce GTX 275 is a bit (approximately 1%) more effective at AA than the Radeon R7 260X, and should be capable of handling higher screen resolutions while still performing well. (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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.