GeForce 9800 GTX vs Radeon HD 5750 512MB

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 9800 GTX		140 Watts
	Difference: 54 Watts (63%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB is 5% faster than the GeForce 9800 GTX in general, due to its higher data rate. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce 9800 GTX should be quite a bit (approximately 71%) faster with regards to anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 18000 (71%)

Pixel Rate

The Radeon HD 5750 512MB should be a little bit (more or less 4%) more effective at AA than the GeForce 9800 GTX, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 400 (4%)

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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.