GeForce GT 430 1GB vs GeForce GTX 550 Ti

Intro

Compare those specifications to the GeForce GTX 550 Ti, which comes with GPU clock speed of 900 MHz, and 1024 MB of GDDR5 RAM running at 1026 MHz through a 192-bit bus. It also features 192 SPUs, 32 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 56 Watts (93%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 550 Ti should be 242% faster than the GeForce GT 430 1GB overall, due to its greater bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 69696 (242%)

Texel Rate

The GeForce GTX 550 Ti is much (approximately 157%) more effective at AF than the GeForce GT 430 1GB. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 17600 (157%)

Pixel Rate

The GeForce GTX 550 Ti will be quite a bit (about 671%) more effective at FSAA than the GeForce GT 430 1GB, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 18800 (671%)

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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 maximum fill rate.