GeForce 8800 GT 512MB vs Radeon R7 260X

Intro

Compare those specifications to the Radeon R7 260X, which comes with a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 memory set to run at 1625 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

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

The Radeon R7 260X, in theory, should perform a lot faster than the GeForce 8800 GT 512MB in general. (explain)

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

Texel Rate

The Radeon R7 260X should be a lot (more or less 83%) better at AF 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 quite a bit (more or less 83%) more effective at full screen anti-aliasing than the GeForce 8800 GT 512MB, and also able to handle higher 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 max amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number 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 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 most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.