GeForce 8800 Ultra vs Radeon R7 260X

Intro

Compare those specs to the Radeon R7 260X, which has clock speeds of 1100 MHz on the GPU, and 1625 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 56 Watts (49%)

Memory Bandwidth

As far as performance goes, the Radeon R7 260X should theoretically be a little bit better than the GeForce 8800 Ultra in general. (explain)

Radeon R7 260X		104000 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 320 (0%)

Texel Rate

The Radeon R7 260X is a lot (about 57%) more effective at anisotropic filtering than the GeForce 8800 Ultra. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 22432 (57%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 260X is a better choice, not by a very large margin though. (explain)

Radeon R7 260X		17600 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 2912 (20%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number 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 Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 potential to reach the maximum fill rate.