GeForce GT 430 vs GeForce GTX 580

Intro

Compare those specs to the GeForce GTX 580, which comes with core clock speeds of 772 MHz on the GPU, and 1002 MHz on the 1536 MB of GDDR5 RAM. It features 512 SPUs along with 64 TAUs and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 580		244 Watts
	Difference: 184 Watts (307%)

Memory Bandwidth

In theory, the GeForce GTX 580 is 568% quicker than the GeForce GT 430 overall, because of its greater bandwidth. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 163584 (568%)

Texel Rate

The GeForce GTX 580 is much (about 341%) better at texture filtering than the GeForce GT 430. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 38208 (341%)

Pixel Rate

The GeForce GTX 580 is a lot (more or less 1223%) more effective at FSAA than the GeForce GT 430, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 34256 (1223%)

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 maximum amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.