GeForce GTX 780 Ti vs GeForce GTX 980M

Intro

Compare that to the GeForce GTX 980M, which has a core clock frequency of 1038 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 96 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 780 Ti should be much 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 will be a lot (approximately 111%) more effective at texture filtering than the GeForce GTX 980M. (explain)

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

Pixel Rate

The GeForce GTX 980M will be quite a bit (about 58%) more effective at anti-aliasing than the GeForce GTX 780 Ti, and capable of handling higher resolutions while still performing well. (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 data (in units of MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock 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 rate is also dependant on quite a few 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.