GeForce 8800 GT 1GB vs GeForce 920M

Intro

Compare that to the GeForce 920M, which uses a 28 nm design. nVidia has set the core speed at 954 MHz. The DDR3 memory is set to run at a frequency of 900 MHz on this model. It features 384 SPUs as well as 32 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 8800 GT 1GB should perform much faster than the GeForce 920M overall. (explain)

GeForce 8800 GT 1GB		57600 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 43200 (300%)

Texel Rate

The GeForce 8800 GT 1GB should be a little bit (more or less 10%) more effective at AF than the GeForce 920M. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 3072 (10%)

Pixel Rate

The GeForce 8800 GT 1GB should be much (more or less 26%) faster with regards to FSAA than the GeForce 920M, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce 8800 GT 1GB		9600 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 1968 (26%)

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 megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.