GeForce GT 430 1GB vs GeForce GTX 285 2GB

Intro

Compare those specifications to the GeForce GTX 285 2GB, which comes with a core clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also features a 512-bit bus, and uses a 55 nm design. It is comprised of 240 SPUs, 80 Texture Address Units, 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 285 2GB		204 Watts
	Difference: 144 Watts (240%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should theoretically be much 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 should be much (about 363%) better at 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 the winner, and very much so. (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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.