GeForce GTX 560 Ti 448 vs GeForce GTX 660

Intro

Compare those specifications to the GeForce GTX 660, which uses a 28 nm design. nVidia has clocked the core speed at 980 MHz. The GDDR5 RAM runs at a frequency of 1502 MHz on this particular card. It features 960 SPUs as well as 80 Texture Address Units and 24 Rasterization Operator Units.

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		5063 points
GeForce GTX 560 Ti 448		4200 points
	Difference: 863 (21%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 70 Watts (50%)

Memory Bandwidth

In theory, the GeForce GTX 660 should be 0% quicker than the GeForce GTX 560 Ti 448 overall, because of its greater data rate. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 192 (0%)

Texel Rate

The GeForce GTX 660 is quite a bit (approximately 91%) faster with regards to texture filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 37408 (91%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 5760 (24%)

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 largest amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.