I'm stucked at choosing this and Compaq CQ40, price is almost the same

CQ40
AMD Turion X2 2.2Ghz
1GB RAM (custom upgrade to 4GB)
ATI Radeon 3200 256MB dedicated RAM

CQ40 v2 (priced about RM300 more)
same as above except 350GB HDD, ATI 3450 512MB dedicated RAM.

The sales person all said that Turion x2 is more powerful than Pentium.

Which is a better buy? Acer or Compaq?