GeForce 940M vs GeForce GTX 980 Ti

Intro

Compare those specs to the GeForce GTX 980 Ti, which features a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 96 Raster Operation Units.

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 940M		1740 points
	Difference: 15380 (884%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 980 Ti should be quite a bit faster than the GeForce 940M in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 320000 (2000%)

Texel Rate

The GeForce GTX 980 Ti is much (about 584%) better at texture filtering than the GeForce 940M. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 150272 (584%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980 Ti is a better choice, by far. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 87424 (1019%)

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 (counted in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.