GeForce 830M vs GeForce GT 130

Intro

Compare those specs to the GeForce GT 130, which comes with a core clock frequency 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 features 48 SPUs, 24 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GT 130		75 Watts
	Difference: 50 Watts (200%)

Memory Bandwidth

In theory, the GeForce 830M should be a bit faster than the GeForce GT 130 in general. (explain)

GeForce 830M		14400 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 2400 (20%)

Texel Rate

The GeForce 830M will be quite a bit (more or less 37%) faster with regards to texture filtering than the GeForce GT 130. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 4464 (37%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 830M is the winner, but only just. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 232 (3%)

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: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.