GeForce 830M vs GeForce GT 130

Intro

Compare all that to the GeForce GT 130, which comes with core speeds of 500 MHz on the GPU, and 250 MHz on the 768 MB of DDR2 RAM. It features 48 SPUs as well as 24 TAUs and 16 Rasterization Operator Units.

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

The GeForce 830M, in theory, should perform just 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 much (about 37%) more effective at anisotropic filtering than the GeForce GT 130. (explain)

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

Pixel Rate

The GeForce 830M is a small bit (approximately 3%) more effective at anti-aliasing than the GeForce GT 130, and able to handle higher resolutions while still performing well. (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 (counted in MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.