Ok with you given comparison duel core is better. but It is not so good as per performance. so I suggest you to buy inlet i5 or i7 processor.its very powerful and high performance.

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id wait until 2011 when the 6 core monsters be less expensive, just in comparison: intel with 6 core currently: 1000 euro, amds first 6 core: 300 euro but of course the intel one is a newer technology i guess 32 nm while the amd is still 45 nm, so next year i guess amd will go 32nm too and there will be more processors out there lowering the prices in competition like everytime