GeForce GTX 780 Ti vs GeForce GTX 980M

Intro

Compare those specs to the GeForce GTX 980M, which comes with a GPU core clock speed of 1038 MHz, and 4096 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 Texture Address Units, 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 780 Ti		10900 points
GeForce GTX 980M		9476 points
	Difference: 1424 (15%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 150 Watts (150%)

Memory Bandwidth

The GeForce GTX 780 Ti, in theory, should perform quite a bit faster than the GeForce GTX 980M overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 980M		128000 MB/sec
	Difference: 208000 (163%)

Texel Rate

The GeForce GTX 780 Ti should be much (more or less 111%) more effective at AF than the GeForce GTX 980M. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 980M		99648 Mtexels/sec
	Difference: 110352 (111%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 980M is superior to the GeForce GTX 780 Ti, and very much so. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 24432 (58%)

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 max amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 are processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.