GeForce 920M vs Geforce GTX 770

Intro

Compare that to the Geforce GTX 770, which has a clock speed of 1046 MHz and a GDDR5 memory speed of 1753 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 Texture Address Units, and 32 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 770		7854 points
GeForce 920M		1180 points
	Difference: 6674 (566%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Geforce GTX 770 is 1458% quicker than the GeForce 920M in general, because of its greater data rate. (explain)

Geforce GTX 770		224384 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 209984 (1458%)

Texel Rate

The Geforce GTX 770 will be much (approximately 339%) better at anisotropic filtering than the GeForce 920M. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 103360 (339%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 770 is the winner, by far. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 25840 (339%)

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 data (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.