GeForce 920M vs GeForce GT 130

Intro

Compare all of that to the GeForce GT 130, which has a clock frequency of 500 MHz and a DDR2 memory frequency of 250 MHz. It also makes use of a 192-bit memory bus, and makes use of a 55 nm design. It features 48 SPUs, 24 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 920M should be a small bit faster than the GeForce GT 130 in general. (explain)

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

Texel Rate

The GeForce 920M should be much (more or less 154%) faster with regards to AF 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 just a bit (approximately 5%) more effective at anti-aliasing than the GeForce 920M, and capable of handling higher resolutions more effectively. (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 max amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.