GeForce GTX 870M vs GeForce GTX 980 Ti

Intro

Compare that to the GeForce GTX 980 Ti, which has core clock speeds of 1000 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 RAM. It features 2816 SPUs as well as 176 Texture Address Units and 96 Rasterization Operator 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 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

The GeForce GTX 980 Ti should in theory be quite a bit faster than the GeForce GTX 870M overall. (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 quite a bit (approximately 67%) more effective at AF 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 using a high resolution is important to you, then the GeForce GTX 980 Ti is a better choice, and very much so. (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 largest amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling 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 write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.