Sony can celebrate another milestone today as the PlayStation 3 has now sold approximately 11,761,000 units in the US. Microsoft also has reason to celebrate as their Xbox 360 passed the 19 million mark in NPD figures, with approximately 19,383,900 units sold till the end of February.

These figures are aggregates of official NPD data from the launch of both consoles. For comparison's sakes, here is the VGChartz data that many of our readers feel is unreliable. According to VGC the PS3 has sold 13,124,034 units to date, and their Xbox 360 sales figures are incredibly over-inflated, as they are reporting sales of 22,267,528 units, 3 million more than the official NPD numbers. These numbers are however meant to include Canada as well, whereas NPD only counts the US numbers

At the end of last April, the Xbox 360 had double the install base of the PS3, with 14.9 million 360s and only 7.5 million PS3s in the NPD.