GeForce 930M vs GeForce GT 130

Intro

Compare those specifications to the GeForce GT 130, which uses a 55 nm design. nVidia has set the core speed at 500 MHz. The DDR2 memory runs at a frequency of 250 MHz on this particular card. It features 48 SPUs as well as 24 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce 930M should perform a little bit faster than the GeForce GT 130 overall. (explain)

GeForce 930M		14400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 2400 (20%)

Texel Rate

The GeForce 930M will be a lot (more or less 86%) better at anisotropic filtering than the GeForce GT 130. (explain)

GeForce 930M		22272 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 10272 (86%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GT 130 is a better choice, though not by far. (explain)

GeForce GT 130		8000 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 576 (8%)

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 transferred past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.