GeForce GTX 870M vs GeForce GTX 980 Ti

Intro

Compare those specifications to the GeForce GTX 980 Ti, which uses a 28 nm design. nVidia has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this specific model. It features 2816 SPUs along with 176 Texture Address Units and 96 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 870M		4770 points
	Difference: 12350 (259%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 140 Watts (127%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980 Ti should in theory be much superior to the GeForce GTX 870M in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 240000 (250%)

Texel Rate

The GeForce GTX 980 Ti is much (more or less 67%) more effective at texture filtering than the GeForce GTX 870M. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
GeForce GTX 870M		105392 Mtexels/sec
	Difference: 70608 (67%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 980 Ti is the winner, by a large margin. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 73416 (325%)

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 (in units of MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This 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 per second.

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