GeForce GTX 660 Ti vs Radeon HD 6970

Intro

Compare all that to the Radeon HD 6970, which uses a 40 nm design. AMD has clocked the core frequency at 880 MHz. The GDDR5 RAM is set to run at a speed of 1375 MHz on this particular card. 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

In theory, the Radeon HD 6970 should be 22% faster than the GeForce GTX 660 Ti in general, due to its greater data rate. (explain)

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

Texel Rate

The GeForce GTX 660 Ti will be a lot (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

The Radeon HD 6970 should be quite a bit (about 28%) more effective at FSAA than the GeForce GTX 660 Ti, and also able to handle higher resolutions more effectively. (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 max amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.