GeForce GTX 780 Ti vs Geforce GTX 680

Intro

Compare those specifications to the Geforce GTX 680, which features a clock frequency of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation 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 780 Ti		10900 points
Geforce GTX 680		7650 points
	Difference: 3250 (42%)

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX 780 Ti		56 FPS
Geforce GTX 680		38 FPS
	Difference: 18 (47%)

Ethereum Mining Hash Rate

GeForce GTX 780 Ti		19 Mh/s
Geforce GTX 680		16 Mh/s
	Difference: 3 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 55 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti should be 75% faster than the Geforce GTX 680 in general, due to its greater data rate. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 143744 (75%)

Texel Rate

The GeForce GTX 780 Ti is much (about 63%) faster with regards to anisotropic filtering than the Geforce GTX 680. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 81232 (63%)

Pixel Rate

The GeForce GTX 780 Ti is quite a bit (about 30%) more effective at AA than the Geforce GTX 680, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 9808 (30%)

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 information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.