GeForce GT 430 1GB vs GeForce GTX 590

Intro

Compare those specs to the GeForce GTX 590, which has core speeds of 607 MHz on the GPU, and 855 MHz on the 1536 MB of GDDR5 RAM. It features 512 SPUs along with 64 TAUs and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 590		365 Watts
	Difference: 305 Watts (508%)

Memory Bandwidth

The GeForce GTX 590 should theoretically be much faster than the GeForce GT 430 1GB overall. (explain)

GeForce GTX 590		328320 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 299520 (1040%)

Texel Rate

The GeForce GTX 590 should be quite a bit (approximately 594%) faster with regards to texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 66496 (594%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 590 is superior to the GeForce GT 430 1GB, by a large margin. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce GT 430 1GB		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 largest amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units by the core 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. 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 rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.