GeForce 8800 GTX vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which comes with clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 8800 GTX		155 Watts
	Difference: 69 Watts (80%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTX is 17% quicker than the Radeon HD 5750 512MB in general, because of its higher bandwidth. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 12800 (17%)

Texel Rate

The GeForce 8800 GTX should be a lot (approximately 46%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 11600 (46%)

Pixel Rate

The GeForce 8800 GTX should be quite a bit (more or less 23%) faster with regards to anti-aliasing than the Radeon HD 5750 512MB, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 2600 (23%)

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 clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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.