GeForce 920M vs GeForce GTX 970

Intro

Compare those specifications to the GeForce GTX 970, which has a clock speed of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1664 SPUs, 104 TAUs, and 64 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 970		10867 points
GeForce 920M		1180 points
	Difference: 9687 (821%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 970 should be 1456% quicker than the GeForce 920M overall, due to its higher bandwidth. (explain)

GeForce GTX 970		224000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 209600 (1456%)

Texel Rate

The GeForce GTX 970 is much (approximately 258%) more effective at anisotropic filtering than the GeForce 920M. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 78672 (258%)

Pixel Rate

The GeForce GTX 970 is quite a bit (approximately 781%) better at full screen anti-aliasing than the GeForce 920M, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 59568 (781%)

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 maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result 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 can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics 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 amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.