GeForce 8800 GS vs GeForce GT 430

Intro

Compare that to the GeForce GT 430, which makes use of a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this model. It features 96 SPUs as well as 16 Texture Address Units and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce 8800 GS		105 Watts
	Difference: 45 Watts (75%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GS should be 33% quicker than the GeForce GT 430 in general, due to its greater data rate. (explain)

GeForce 8800 GS		38400 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 9600 (33%)

Texel Rate

The GeForce 8800 GS will be much (about 136%) more effective at texture filtering than the GeForce GT 430. (explain)

GeForce 8800 GS		26400 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 15200 (136%)

Pixel Rate

The GeForce 8800 GS is much (about 136%) faster with regards to AA than the GeForce GT 430, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce 8800 GS		6600 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 3800 (136%)

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 data (measured in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.