GeForce GTX 285 2GB vs Radeon HD 6970

Intro

Compare all of that to the Radeon HD 6970, which uses a 40 nm design. AMD has clocked the core frequency at 880 MHz. The GDDR5 memory runs at a speed of 1375 MHz on this specific model. It features 1536 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 2GB		204 Watts
Radeon HD 6970		250 Watts
	Difference: 46 Watts (23%)

Memory Bandwidth

In theory, the Radeon HD 6970 will be 11% faster than the GeForce GTX 285 2GB in general, because of its higher data rate. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GTX 285 2GB		158976 MB/sec
	Difference: 17024 (11%)

Texel Rate

The Radeon HD 6970 is a lot (about 63%) better at AF than the GeForce GTX 285 2GB. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 32640 (63%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6970 is the winner, by a large margin. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 7424 (36%)

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 data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 reach the max fill rate.