GeForce 940M vs GeForce GT 130

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce 940M should be a lot faster than the GeForce GT 130 overall. (explain)

GeForce 940M		16000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 4000 (33%)

Texel Rate

The GeForce 940M will be a lot (approximately 114%) more effective at AF than the GeForce GT 130. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 13728 (114%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 940M is a better choice, but it probably won't make a huge difference. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 576 (7%)

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 maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.