The best replacement for am3 is am3+.

The best alternatives to am3 are rated as following:
★★★★★  am3+
★★★★  i7
★★★★  am2
★★★  fm2
★★  fm
★★  fm1
★  am2+
★  lga 1155
★  1156
★  1366
★  am3 plus
★  775
★  fm3
  1155
  am2 socket
  lga 775
  am3
  wait for fm2
  lga775
  am2+ socket
  new socket
  939

Your alternative for am3 is not listed? Suggest!
Speaking about am3, one probably shouldn't forget about ddr2.

Other search terms related to am3 and their ratings are:
★★★★★ ddr2
★ am2 motherboard
am2 socket
You have in mind a companion for am3 and it is not yet here? Propose!



Google Trends

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am3
am3+
i7