GeForce GTX 980 Ti vs Geforce GTX 680

Intro

Compare those specifications to the Geforce GTX 680, which features a clock speed of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 1536 SPUs, 128 TAUs, and 32 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 980 Ti		17120 points
Geforce GTX 680		7650 points
	Difference: 9470 (124%)

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX 980 Ti		80 FPS
Geforce GTX 680		38 FPS
	Difference: 42 (111%)

Ethereum Mining Hash Rate

GeForce GTX 980 Ti		22 Mh/s
Geforce GTX 680		16 Mh/s
	Difference: 6 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680		195 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 55 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 Ti should perform a lot faster than the Geforce GTX 680 in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 143744 (75%)

Texel Rate

The GeForce GTX 980 Ti will be much (more or less 37%) more effective at texture filtering than the Geforce GTX 680. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 47232 (37%)

Pixel Rate

The GeForce GTX 980 Ti will be quite a bit (about 198%) more effective at AA than the Geforce GTX 680, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 63808 (198%)

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 (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 processed per second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.