GeForce GTX 780 Ti vs GeForce GTX 980

Intro

Compare those specs to the GeForce GTX 980, which comes with core clock speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 64 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		13552 points
GeForce GTX 780 Ti		10900 points
	Difference: 2652 (24%)

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX 980		63 FPS
GeForce GTX 780 Ti		56 FPS
	Difference: 7 (13%)

Ethereum Mining Hash Rate

GeForce GTX 980		20 Mh/s
GeForce GTX 780 Ti		19 Mh/s
	Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980		165 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 85 Watts (52%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 780 Ti should in theory be a lot superior to the GeForce GTX 980 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 980		224000 MB/sec
	Difference: 112000 (50%)

Texel Rate

The GeForce GTX 780 Ti will be much (approximately 46%) better at texture filtering than the GeForce GTX 980. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 980		144128 Mtexels/sec
	Difference: 65872 (46%)

Pixel Rate

The GeForce GTX 980 will be quite a bit (more or less 72%) more effective at AA than the GeForce GTX 780 Ti, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 30064 (72%)

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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.