GeForce 8800 GT 512MB vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which features core clock speeds of 1100 MHz on the GPU, and 1625 MHz on the 2048 MB of GDDR5 RAM. 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)

GeForce 8800 GT 512MB		105 Watts
Radeon R7 260X		115 Watts
	Difference: 10 Watts (10%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 260X will be 81% faster than the GeForce 8800 GT 512MB overall, because of its higher bandwidth. (explain)

Radeon R7 260X		104000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 46400 (81%)

Texel Rate

The Radeon R7 260X is a lot (more or less 83%) more effective at texture filtering than the GeForce 8800 GT 512MB. (explain)

Radeon R7 260X		61600 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 28000 (83%)

Pixel Rate

The Radeon R7 260X is much (about 83%) more effective at anti-aliasing than the GeForce 8800 GT 512MB, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R7 260X		17600 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 8000 (83%)

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 largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 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 texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.