Aquamarine
Member
Further to Aquamarine's post and before anyone cites the relative installed base of the PS3/360 and Wii U; when Assassin's Creed IV debuted on the PS4 in November it sold >270K and >115K on the XB1, and has now sold >500K on the PS4 and >350K on the XB1.
The game has sold about 3M total, so the PS4 SKU constitutes around 17% of sales on an installed base of 2M systems.
If we were to extend that 1% ratio (1% of 3 million) out to December for Assassin's Creed IV:
PS4 SKU - >500K in two months on a smaller install-base than Wii U
Xbox One SKU - >350K in two months on a smaller install-base than Wii U
Wii U SKU - 30,000 since October...on a system with a larger install-base and an entire year of exposure in the retail market
This is, of course, assuming that 1% Assassin's Creed IV Wii U marketshare didn't shrink to like 0.5% by December...and it may very well have.