GeForce 920M vs GeForce GTX 980

Intro

Compare those specs to the GeForce GTX 980, which uses a 28 nm design. nVidia has clocked the core frequency at 1126 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this model. It features 2048 SPUs along with 128 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 980		13552 points
GeForce 920M		1180 points
	Difference: 12372 (1048%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 980 should theoretically perform quite a bit faster than the GeForce 920M overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 209600 (1456%)

Texel Rate

The GeForce GTX 980 will be a lot (approximately 372%) faster with regards to texture filtering than the GeForce 920M. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 113600 (372%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980 is the winner, by far. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 64432 (844%)

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 data (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.