GeForce 920M vs Geforce GTX 780

Intro

Compare those specifications to the Geforce GTX 780, which features clock speeds of 863 MHz on the GPU, and 1502 MHz on the 3072 MB of GDDR5 memory. It features 2304 SPUs along with 192 TAUs and 48 ROPs.

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 780		10082 points
GeForce 920M		1180 points
	Difference: 8902 (754%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 780, in theory, should perform a lot faster than the GeForce 920M overall. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 273984 (1903%)

Texel Rate

The Geforce GTX 780 is a lot (about 443%) better at texture filtering than the GeForce 920M. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 135168 (443%)

Pixel Rate

The Geforce GTX 780 is a lot (about 443%) better at full screen anti-aliasing than the GeForce 920M, and able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 33792 (443%)

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 maximum amount of data (in units of MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 per second. This 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.