GeForce GTX 560 Ti vs GeForce GTX 780 Ti

Intro

Compare all of that to the GeForce GTX 780 Ti, which has GPU clock speed of 875 MHz, and 3072 MB of GDDR5 memory set to run at 1750 MHz through a 384-bit bus. It also features 2880 SPUs, 240 Texture Address Units, and 48 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 780 Ti		10900 points
GeForce GTX 560 Ti		3466 points
	Difference: 7434 (214%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 80 Watts (47%)

Memory Bandwidth

In theory, the GeForce GTX 780 Ti will be 162% faster than the GeForce GTX 560 Ti overall, because of its greater bandwidth. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 207744 (162%)

Texel Rate

The GeForce GTX 780 Ti should be quite a bit (about 299%) faster with regards to anisotropic filtering than the GeForce GTX 560 Ti. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 157392 (299%)

Pixel Rate

The GeForce GTX 780 Ti will be much (approximately 60%) more effective at AA than the GeForce GTX 560 Ti, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GTX 560 Ti		26304 Mpixels/sec
	Difference: 15696 (60%)

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 information (counted in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high 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 number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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 fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.