GeForce 830M vs GeForce 8800 GTX

Intro

Compare all of that to the GeForce 8800 GTX, which features core clock speeds of 575 MHz on the GPU, and 900 MHz on the 768 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce 8800 GTX		155 Watts
	Difference: 130 Watts (520%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTX will be 500% faster than the GeForce 830M overall, because of its greater bandwidth. (explain)

GeForce 8800 GTX		86400 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 72000 (500%)

Texel Rate

The GeForce 8800 GTX is quite a bit (approximately 124%) better at texture filtering than the GeForce 830M. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 20336 (124%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 8800 GTX is the winner, and very much so. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 5568 (68%)

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 maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock 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 one 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. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.