GeForce 9800 GTX vs GeForce GT 430 1GB

Intro

Compare that to the GeForce GT 430 1GB, which uses a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR3 RAM runs at a frequency of 900 MHz on this specific 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 1GB		60 Watts
GeForce 9800 GTX		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

Theoretically, the GeForce 9800 GTX should perform quite a bit faster than the GeForce GT 430 1GB overall. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce 9800 GTX is much (approximately 286%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 32000 (286%)

Pixel Rate

The GeForce 9800 GTX is a lot (about 286%) faster with regards to AA than the GeForce GT 430 1GB, and also capable of handling higher screen resolutions better. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 8000 (286%)

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 information (measured in MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.