GeForce GT 220 GDDR3 vs GeForce GT 430 1GB

Intro

Compare all of that to the GeForce GT 430 1GB, which features a GPU core clock speed of 700 MHz, and 1024 MB of GDDR3 RAM set to run at 900 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 16 Texture Address Units, 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 1GB		60 Watts
	Difference: 2 Watts (3%)

Memory Bandwidth

Performance-wise, the GeForce GT 220 GDDR3 should in theory be a bit better than the GeForce GT 430 1GB in general. (explain)

GeForce GT 220 GDDR3		32384 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 3584 (12%)

Texel Rate

The GeForce GT 430 1GB should be just a bit (about 12%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GT 430 1GB		11200 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 1200 (12%)

Pixel Rate

The GeForce GT 220 GDDR3 is quite a bit (approximately 79%) more effective at full screen anti-aliasing than the GeForce GT 430 1GB, and also should be capable of handling higher resolutions more effectively. (explain)

GeForce GT 220 GDDR3		5000 Mpixels/sec
GeForce GT 430 1GB		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 (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. 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 output 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 max fill rate.