GeForce GT 430 1GB vs Geforce GTX 680

Intro

Compare all that to the Geforce GTX 680, which features GPU clock speed of 1006 MHz, and 2048 MB of GDDR5 RAM running at 1502 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
Geforce GTX 680		195 Watts
	Difference: 135 Watts (225%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 is 568% quicker than the GeForce GT 430 1GB in general, because of its greater bandwidth. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 163456 (568%)

Texel Rate

The Geforce GTX 680 should be a lot (approximately 1050%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 117568 (1050%)

Pixel Rate

The Geforce GTX 680 should be much (approximately 1050%) better at FSAA than the GeForce GT 430 1GB, and also should be capable of handling higher screen resolutions better. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce GT 430 1GB		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 data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has 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 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 processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.