GeForce GT 220 GDDR3 vs GeForce GTX 480

Intro

Compare all of that to the GeForce GTX 480, which has GPU core speed of 700 MHz, and 1536 MB of GDDR5 RAM set to run at 924 MHz through a 384-bit bus. It also features 480 SPUs, 60 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 480		250 Watts
	Difference: 192 Watts (331%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 480 should in theory be quite a bit superior to the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 145024 (448%)

Texel Rate

The GeForce GTX 480 should be a lot (about 320%) better at AF than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 32000 (320%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 480 is the winner, and very much so. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 28600 (572%)

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 data (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.