HTPC Video Card Upgrade PLease Help!!


Mar 16, 2009
Hello I am new to this forum. Can someone please help me? I have a old home built system:

ECS P4VXASD2+ Motherboard
2GB DDR 3200 RAm
2.4GHZ P4
Geforce MX420 64MB Card

I was wondering if i got the HD3650 will it be too much of an upgrade? I was also looking at the HD3450 AGP will that be a better upgrade? This is mostly for Hd / Bluray viewing. Thanks

PS: Does the HD3450 have a H.264, VC-1 and WMV decode aceleration? I know that the HD3650 does.