GeForce GT 430 (OEM) vs Geforce GTX 680

Intro

Compare those specs to the Geforce GTX 680, which features a clock speed of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Geforce GTX 680		195 Watts
	Difference: 135 Watts (225%)

Memory Bandwidth

In theory, the Geforce GTX 680 should be much faster than the GeForce GT 430 (OEM) in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 163456 (568%)

Texel Rate

The Geforce GTX 680 should be much (about 1050%) faster with regards to texture filtering than the GeForce GT 430 (OEM). (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 117568 (1050%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (about 1050%) more effective at full screen anti-aliasing than the GeForce GT 430 (OEM), and able to handle higher screen resolutions without slowing down too much. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 29392 (1050%)

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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number 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 outputting the pixels (image) to the screen. The actual pixel fill 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.