GeForce 8800 GT 512MB vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which features GPU clock speed of 1090 MHz, and 2048 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 TAUs, 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 will be 94% quicker than the GeForce 8800 GT 512MB overall, due to its greater bandwidth. (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 should be a lot (more or less 82%) faster with regards to 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

If running with lots of anti-aliasing is important to you, then the Radeon RX 460 2GB is the winner, by a large margin. (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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics 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 that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant 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 max fill rate.