scottie on 11 February 2010
| SpartenOmega117 said: okay i see them. so ps3 sold over 200,000 units in one week? so does NPD track the units shipped? Ps3 sells 200,000 units monthly in the U.S.. does npd track amazon? |
NPD tracks sales from retailer to consumer in the United States of America.
VGChartz tracks sales from retailer to consumer across the whole world.
This is why the PS3 sells as much in a week of VGChartz tracking as in a month of NPD. If you want to compare VGCHartz numbers to NPD, then you can click http://www.vgchartz.com/aweekly.php. But it is very important to note that VGCHartz 'Americas region' includes Canada, Mexico and South America. So for a reasonably accurate comparison, multiply the VGChartz Americas numbers by 0.9 and compare to NPD numbers
