GeForce GT 220 GDDR3 vs GeForce GT 430

Intro

Compare that to the GeForce GT 430, which makes use of a 40 nm design. nVidia has clocked the core frequency at 700 MHz. The GDDR3 RAM runs at a frequency of 900 MHz on this particular card. It features 96 SPUs as well as 16 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GT 430		60 Watts
	Difference: 2 Watts (3%)

Memory Bandwidth

In theory, the GeForce GT 220 GDDR3 should perform a small bit faster than the GeForce GT 430 in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 3584 (12%)

Texel Rate

The GeForce GT 430 is a small bit (approximately 12%) more effective at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GT 430		11200 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 1200 (12%)

Pixel Rate

The GeForce GT 220 GDDR3 will be much (about 79%) better at anti-aliasing than the GeForce GT 430, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 2200 (79%)

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 (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video 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 graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.