GeForce 830M vs GeForce 8800 GT 512MB

Intro

Compare all of that to the GeForce 8800 GT 512MB, which features a core clock frequency of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and uses a 65 nm design. It is made up of 112 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 80 Watts (320%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GT 512MB should theoretically be a lot better than the GeForce 830M in general. (explain)

GeForce 8800 GT 512MB		57600 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 43200 (300%)

Texel Rate

The GeForce 8800 GT 512MB is quite a bit (more or less 104%) more effective at anisotropic filtering than the GeForce 830M. (explain)

GeForce 8800 GT 512MB		33600 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 17136 (104%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 8800 GT 512MB is superior to the GeForce 830M, though only just barely. (explain)

GeForce 8800 GT 512MB		9600 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 1368 (17%)

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 data (counted in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one 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 better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.