VGChartz is undertracking PlayStation products by a lot because the PS3/PS4 is selling well in countries that are difficult to track. Xbox isn't as undetracked  because most of them are sold America and GB.
Sony has published PS4 hardware numbers multiple times and VGC still undetracked it by almost 700k at 10 million.

This is all too hypothetical. First off the 80m figure coming 10 weeks later? I don't think so, it seemed pretty obvious it was a recent occurence due to holiday ramp up.

Secondly are you taking into account the artificial FYQ4 where PS2 + PS3 shipped 3.5m, up 900k YOY, despite all trackers (NPD, Mediacreate) and VGC showing PS3 sales down YOY.

PS2 got a big final shipment there you should take into account.

Another thing is Sony's forecasts, the previous year they missed it by 1m, and they never made an announcement or any sort of remakr about hitting their 13m forecast (for the year you suggest they shipped 13.9m) that doesn't ring true to me at all.

In fact if they missed it by 1m like everything suggests it did, that puts it at 12m for that year and right on par wih 360.

I have no doubt PS3 will pass 360 (and think it may have already) I just don't think it's happened on the scale you suggest and don't think Sony will pass up mentioning it.

That announcement will come one day from Sony, and I can tell all the people that laughed abou how "Sony won't announce it because _________________" they were wrong.

Of course they won't care cos PS3 > 360 officially and that's what they'll say :P.

Edit - and to further disprove you. You suggesting 13.9m for that FY, means you think it was entirely flat YOY, as it did 13.9m the year before.

You will be startled seece,I will agree with you and this happens once in a blue moon:P I can t grasp this ps2 number...it didn't end with 157.9 shipments?we know that it had sold 155 as of  march 31th 2012 and sony discontinued it in the end of 2012!

Btw to put it in black and white

Your theory:

FY11 - 14.3m
FY12 - 13.9m (Missed Forecast by 1.1m)
FY13 - 13.9m ..... (Despite being down 1.17m in the US alone in those 12 months, down in Japan and Europe too). (Surpassed forecast by 900k)
FY14 - 7.1m
FY15 - 1.6m

My theory:

FY11 - 14.3m
FY12 - 13.9m (Missed forecast by 1.1m)
FY13 - 12.2m (Missed forecast by 800k, actually in line with real world sales ...)
FY14 - 7.1m
FY15 - 1.6m

And how does your numbers align with the numbers in OP since they are pulled from yealy earning releases that can't be faked... either PS2 sold more than what we have here or PS3 we can't have both as how they are.