GeForce GTX 285 2GB vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which comes with clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 720 SPUs as well as 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 6750		86 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 118 Watts (137%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB will be 148% quicker than the Radeon HD 6750 in general, because of its higher bandwidth. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 94976 (148%)

Texel Rate

The GeForce GTX 285 2GB will be much (more or less 99%) faster with regards to anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 25740 (99%)

Pixel Rate

The GeForce GTX 285 2GB will be quite a bit (approximately 79%) faster with regards to AA than the Radeon HD 6750, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 9136 (79%)

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 information (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.