GeForce 920M vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which has a core clock speed of 500 MHz and a DDR2 memory frequency of 250 MHz. It also features a 192-bit bus, and uses a 55 nm design. It is comprised of 48 SPUs, 24 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 920M should in theory perform just a bit faster than the GeForce GT 130 overall. (explain)

GeForce 920M		14400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 2400 (20%)

Texel Rate

The GeForce 920M is quite a bit (approximately 154%) faster with regards to texture filtering than the GeForce GT 130. (explain)

GeForce 920M		30528 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 18528 (154%)

Pixel Rate

The GeForce GT 130 is a bit (about 5%) more effective at AA than the GeForce 920M, and also will be able to handle higher resolutions better. (explain)

GeForce GT 130		8000 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 368 (5%)

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 largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.