GeForce GTX 660 Ti vs Radeon HD 6970

Intro

Compare those specs to the Radeon HD 6970, which features core speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 96 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

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

Theoretically, the Radeon HD 6970 should be 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 anisotropic filtering 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 screen resolution is important to you, then the Radeon HD 6970 is the winner, and very much so. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core 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 applied in one second.

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