GeForce 8800 Ultra vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which comes with 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 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

Performance-wise, the Radeon R7 260X should in theory be a bit superior to the GeForce 8800 Ultra overall. (explain)

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

Texel Rate

The Radeon R7 260X will be quite a bit (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 screen resolution is important to you, then the Radeon R7 260X is superior to the GeForce 8800 Ultra, but only just. (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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, 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 maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.