GeForce GT 220 GDDR3 vs GeForce GTX 480

Intro

Compare that to the GeForce GTX 480, which comes with clock speeds of 700 MHz on the GPU, and 924 MHz on the 1536 MB of GDDR5 memory. It features 480 SPUs as well as 60 Texture Address Units and 48 ROPs.

Display Graphs

Hide Graphs

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

Theoretically, the GeForce GTX 480 should be a lot faster than 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 quite a bit (about 320%) faster with regards to anisotropic filtering 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

The GeForce GTX 480 should be much (more or less 572%) faster with regards to full screen anti-aliasing than the GeForce GT 220 GDDR3, and also will be capable of handling higher screen resolutions without slowing down too much. (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 information (in units of MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per 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 this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.