GeForce GTX 660 Ti vs Radeon HD 6970

Intro

Compare those specifications to the Radeon HD 6970, which makes use of a 40 nm design. AMD has clocked the core frequency at 880 MHz. The GDDR5 RAM runs at a speed of 1375 MHz on this particular model. It features 1536 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

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 should in theory perform a lot faster than the GeForce GTX 660 Ti in general. (explain)

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

Texel Rate

The GeForce GTX 660 Ti is a lot (approximately 21%) faster with regards to 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 will be a lot (approximately 28%) better at FSAA than the GeForce GTX 660 Ti, and also will be capable of handling 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 information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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