GeForce GT 430 (OEM) vs Geforce GTX 680

Intro

Compare those specs to the Geforce GTX 680, which has a core clock frequency of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

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

Theoretically speaking, the Geforce GTX 680 should perform a lot faster than the GeForce GT 430 (OEM) overall. (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 (approximately 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 is quite a bit (approximately 1050%) better at anti-aliasing than the GeForce GT 430 (OEM), and able to handle higher screen resolutions better. (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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.