GeForce 8800 Ultra vs Radeon R7 260X

Intro

Compare all of that 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 along with 56 Texture Address Units and 16 Rasterization Operator Units.

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

Theoretically speaking, the Radeon R7 260X should perform a small bit faster 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 should be much (about 57%) more effective at AF 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 resolution is important to you, then the Radeon R7 260X is the winner, 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 across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.