GeForce GTX 285 2GB vs Radeon HD 6950

Intro

Compare that to the Radeon HD 6950, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950		200 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 4 Watts (2%)

Memory Bandwidth

The Radeon HD 6950 should theoretically perform a bit faster than the GeForce GTX 285 2GB in general. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GTX 285 2GB		158976 MB/sec
	Difference: 1024 (1%)

Texel Rate

The Radeon HD 6950 should be a lot (more or less 36%) faster with regards to AF than the GeForce GTX 285 2GB. (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 18560 (36%)

Pixel Rate

The Radeon HD 6950 is a lot (about 23%) better at AA than the GeForce GTX 285 2GB, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 4864 (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 maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.