GeForce 8800 GT 512MB vs Radeon RX 460 2GB

Intro

Compare that to the Radeon RX 460 2GB, which comes with core clock speeds of 1090 MHz on the GPU, and 1750 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 RX 460 2GB		75 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 30 Watts (40%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 2GB is 94% quicker than the GeForce 8800 GT 512MB overall, because of its higher data rate. (explain)

Radeon RX 460 2GB		112000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 54400 (94%)

Texel Rate

The Radeon RX 460 2GB is quite a bit (more or less 82%) better at AF than the GeForce 8800 GT 512MB. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 27440 (82%)

Pixel Rate

The Radeon RX 460 2GB will be much (approximately 82%) more effective at anti-aliasing than the GeForce 8800 GT 512MB, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 7840 (82%)

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 data (counted in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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 worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.