GeForce 8600 GTS vs GeForce GT 430 1GB

Intro

Compare all that to the GeForce GT 430 1GB, which comes with a clock frequency of 700 MHz and a GDDR3 memory speed of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 96 SPUs, 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 8600 GTS		75 Watts
	Difference: 15 Watts (25%)

Memory Bandwidth

As far as performance goes, the GeForce 8600 GTS should in theory be a bit superior to the GeForce GT 430 1GB in general. (explain)

GeForce 8600 GTS		32000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GT 430 1GB should be a bit (about 4%) better at AF than the GeForce 8600 GTS. (explain)

GeForce GT 430 1GB		11200 Mtexels/sec
GeForce 8600 GTS		10800 Mtexels/sec
	Difference: 400 (4%)

Pixel Rate

The GeForce 8600 GTS should be a lot (more or less 93%) faster with regards to anti-aliasing than the GeForce GT 430 1GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce 8600 GTS		5400 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 2600 (93%)

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 (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.