GeForce GTX 285 2GB vs Radeon HD 6750

Intro

Compare all of that to the Radeon HD 6750, which uses a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this card. It features 720 SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

The GeForce GTX 285 2GB should theoretically be a lot faster than the Radeon HD 6750 overall. (explain)

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

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (about 99%) more effective at 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 should be a lot (approximately 79%) more effective at AA than the Radeon HD 6750, and also should be capable of handling 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: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.