"It sold 514,000 copies on 360, making £22 million in revenues at UK retail. The previous record holder, Halo 3, sold 411,000 copies in its first week, making £16.9 million.
On PS3, GTA IV sold 413,000 copies in the week, taking £17.9 million at retail. That beat the previous one-week record holder, GT5: Prologue, which sold 120,000 and made £2.6 million."
PS3 won the hardware race (it increased slightly more than 360 compared to the previous week when it was already outselling the 360):
"However, PS3 hardware sales leapt 127 per cent in the week in which the game was released (Sunday, April 27th to Saturday, May 5th) week-on-week.
Xbox 360 hardware sales also felt the GTA effect, climbing 125 per cent in the week."
http://www.mcvuk.com/news/30468/360-outselling-PS3-in-GTA-software-battle
PS3 version of GTA IV: 413,000 units
PS3 hardware sales increase: 127%
360 version of GTA IV: 514,000 units
360 hardware sales increase: 125%







