GeForce 830M vs GeForce GTX 460 1GB

Intro

Compare those specifications to the GeForce GTX 460 1GB, which comes with GPU core speed of 675 MHz, and 1024 MB of GDDR5 RAM set to run at 900 MHz through a 256-bit bus. It also features 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 135 Watts (540%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB should be much faster than the GeForce 830M overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 100800 (700%)

Texel Rate

The GeForce GTX 460 1GB is a lot (about 130%) better at anisotropic filtering than the GeForce 830M. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 21336 (130%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 1GB is the winner, and very much so. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 13368 (162%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, 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 most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 ability to reach the maximum fill rate.