The best replacement for 8gb is 16gb.

The best alternatives to 8gb are rated as following:
★★★★★  16gb
★★★★  16gb ram
★★★  16gb iphone
★★★  4gb ram
★★  4gb
★★  12gb ram
★★  32gb
★★  32gb wii u
★★  16gb macbook pro
★★  16gb tablet
★  16gb memory
★  32gb ipod touch
★  2x4gb
★  16gb kindle fire
★  12gb
★  16gb ipod touch
★  16gb iphone 4
★  16gb ram macbook pro
★  16gb moto g
★  16gb iphone 4s
★  16gb macbook pro retina
  16gb ipod
  16gb kindle fire hd
  4gb ram gaming
  16gb nook
  32gb ipod
  n96
  32gb iphone
  16gb iphone 3g
  16gb nook tablet
  16gb 3g iphone
  nokia n95
  4gb macbook pro
  4gb windows 7
  n95
  32gb ipod touch 4g
  16 gb iphone
  32 gb
  32gb ram
  6gb ram
  16gb nexus 7
  30gb
  16gb touch
  nook tablet 16gb
  n82
  apple iphone
  16gb iphone 3gs
  iphone 16gb
  32 gb ipod touch
  n81 8gb
  32gb itouch
  6gb
  iphone 4gb
  4gb iphone
  16 gb

Your alternative for 8gb is not listed? Suggest!
Speaking about 8gb, one probably shouldn't forget about vista.

Other search terms related to 8gb and their ratings are:
★★★★★ vista
★★★★★ n95
You have in mind a companion for 8gb and it is not yet here? Propose!



Google Trends

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8gb
16gb
16gb ram