GeForce 830M vs GeForce GT 440 3GB

Intro

Compare those specs to the GeForce GT 440 3GB, which has a core clock frequency of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 192-bit bus, and uses a 40 nm design. It is made up of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 31 Watts (124%)

Memory Bandwidth

In theory, the GeForce GT 440 3GB should perform a lot faster than the GeForce 830M overall. (explain)

GeForce GT 440 3GB		43200 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 28800 (200%)

Texel Rate

The GeForce 830M should be just a bit (about 15%) better at AF than the GeForce GT 440 3GB. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 2208 (15%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is superior to the GeForce 830M, by far. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 6024 (73%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.