GeForce GTX 660 Ti vs Radeon HD 6970

Intro

Compare those specifications to the Radeon HD 6970, which features a GPU core clock speed of 880 MHz, and 2048 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660 Ti		6013 points
Radeon HD 6970		3470 points
	Difference: 2543 (73%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon HD 6970		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon HD 6970, in theory, should perform a lot faster than the GeForce GTX 660 Ti overall. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 32000 (22%)

Texel Rate

The GeForce GTX 660 Ti should be much (more or less 21%) better at AF than the Radeon HD 6970. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 18000 (21%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6970 is a better choice, by a large margin. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 6200 (28%)

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 largest amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.