GeForce GT 430 vs GeForce GTX 590

Intro

Compare all that to the GeForce GTX 590, which uses a 40 nm design. nVidia has clocked the core frequency at 607 MHz. The GDDR5 memory runs at a speed of 855 MHz on this specific model. It features 512 SPUs as well as 64 Texture Address Units 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 590		365 Watts
	Difference: 305 Watts (508%)

Memory Bandwidth

Performance-wise, the GeForce GTX 590 should in theory be much better than the GeForce GT 430 overall. (explain)

GeForce GTX 590		328320 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 299520 (1040%)

Texel Rate

The GeForce GTX 590 will be a lot (more or less 594%) more effective at texture filtering than the GeForce GT 430. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 66496 (594%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 590 is the winner, and very much so. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 55472 (1981%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.