GeForce 8800 GT 1GB vs Radeon HD 5750 1GB

Intro

Compare those specs to the Radeon HD 5750 1GB, which features GPU core speed of 700 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce 8800 GT 1GB		105 Watts
	Difference: 19 Watts (22%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 1GB will be 28% faster than the GeForce 8800 GT 1GB in general, due to its higher data rate. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 16000 (28%)

Texel Rate

The GeForce 8800 GT 1GB is quite a bit (about 33%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 8400 (33%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5750 1GB is the winner, not by a very large margin though. (explain)

Radeon HD 5750 1GB		11200 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 1600 (17%)

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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.