GeForce 830M vs GeForce GTX 460 1GB

Intro

Compare all of that to the GeForce GTX 460 1GB, which has a GPU core clock speed of 675 MHz, and 1024 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 336 Stream Processors, 56 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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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

The GeForce GTX 460 1GB should theoretically be a lot 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 (approximately 130%) faster with regards to AF than the GeForce 830M. (explain)

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

Pixel Rate

If running with a high screen resolution 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 MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 number of texture map elements (texels) that can be applied per second. This 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.