GeForce GT 220 GDDR3 vs GeForce GTX 550 Ti

Intro

Compare those specs to the GeForce GTX 550 Ti, which features a core clock frequency of 900 MHz and a GDDR5 memory frequency of 1026 MHz. It also features a 192-bit memory bus, and makes use of a 40 nm design. It features 192 SPUs, 32 TAUs, and 24 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 58 Watts (100%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti will be 204% faster than the GeForce GT 220 GDDR3 overall, due to its higher bandwidth. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 66112 (204%)

Texel Rate

The GeForce GTX 550 Ti will be a lot (approximately 188%) faster with regards to anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 18800 (188%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 550 Ti is superior to the GeForce GT 220 GDDR3, and very much so. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 16600 (332%)

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 MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units of the card 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 maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.