GeForce GT 430 1GB vs GeForce GTX 285 2GB

Intro

Compare those specifications to the GeForce GTX 285 2GB, which makes use of a 55 nm design. nVidia has clocked the core speed at 648 MHz. The GDDR3 memory works at a frequency of 1242 MHz on this model. It features 240 SPUs along with 80 TAUs and 32 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 285 2GB		204 Watts
	Difference: 144 Watts (240%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 2GB should theoretically be quite a bit superior to the GeForce GT 430 1GB overall. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 130176 (452%)

Texel Rate

The GeForce GTX 285 2GB is much (more or less 363%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 40640 (363%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 285 2GB is a better choice, by far. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 17936 (641%)

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 largest amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.