How do VGC compares to NPD on console launch?

[DonFerrari]

Poorlyyyyyyyyyyyyyyyyyyyyyyyyy

Here is some data

VGC (first six months detailed)

X360 PS3

Nov - 305,237 196,672

Dec - 258,045 471,090

Jan - 228,761 200,469

Feb - 163,017 131,936

Mar - 183,539 143,839

Apr - 270,286 83,976

 

Total - 1,408,885 1,227,982

 

X1 PS4

Nov - 969,058 1,190,979

Dec - 963,807 889,834

Jan - 169,062 295,963

Feb - 233,740 259,941

Mar - 318,663 345,110

Apr - 217,589 212,096 

 

Total - 2,871,919 3,193,923

Growth - 103,8% 160%

(MS PR have it at 76%)

Total Growth - 130% 

So How "shit" are the numbers for X360 and PS3 on the site for the first 6 months in USA?

 

Now using real NPD data

First Six months 

X360 - 1,500k PS3 - 1,280k

(almost 100k under) (over 50k under)

X1 PS4

Nov - 909k 1,145k

Dec - 908k 863k

Jan - 141k 271k

Feb - 258k 285k

Mar - 311k 371k

Apr - 115k 185k (going on the leaked total)

 

Total - 2,642k 3,110k

VGC (230k overtacked) (83k overtracked)

Growth - 76% 147% (holy cow)

(first six months on VGC undertracked for X360)

Total Growth 106% (close on the call of over double sales)

If even after all the corrections VGC is still this off, how close are they on the weekly figures???

They estimated 217k for X1 April, NPD have it at 115k meaning almost 90% of error in numbers... And there were people complaining when some users discredited the weekly sales numbers recently. Let's see if VGC get a hold of it.