Like you said, Core2Quad would definitely help you in multitasking better but then it would help you consume less electricity giving you better performance since it has twice the L2 Cache size with two additional cores and I would def. advise you to go for Q9000 however if the price margin is too much and you do not want to pay 100 extra bucks, you can always go with P8600 which itself is a pretty neat and powerful processor. I have listed a one-to-one technical comparison below for you to see. You can check it out and in case of any further query, confusion or suggestion required, feel free to contact us.
Thank you and have a nice day!
Compare Intel® Products
Remove Product Remove Product Name Intel® Core™2 Quad Processor Q9000 (6M Cache, 2.00 GHz, 1066 MHz FSB) Intel® Core™2 Duo Processor P8600 (3M Cache, 2.40 GHz, 1066 MHz FSB) Status Launched Launched Launch Date Q1'09 Q3'08 Processor Number Q9000 P8600 # of Cores 4 2 Clock Speed 2 GHz 2.4 GHz Cache 6 MB L2 Cache 3 MB L2 Cache Bus Type FSB FSB System Bus 1066 MHz 1066 MHz FSB Parity Instruction Set 64-bit 64-bit Embedded Supplemental SKU Lithography 45 nm 45 nm Max TDP 45 W 25 W VID Voltage Range 1.050V-1.150V 1ku Bulk Budgetary Price $348.00 $209.00 Package Specifications Thermal Specification 100°C Package Size 35mm x 35mm 35 mm x 35mm Die Size 107 mm2 107 mm2 # of Transistors 410 million 410 million Sockets Supported PGA478 BGA479, PGA478 Halogen Free Options Available Advanced Technologies Intel® Virtualization Technology Execute Disable Bit Enhanced Intel® Speedstep Technology Enhanced Halt State (C1E) Intel® 64 Intel® Demand Based Switching Intel® Turbo Boost Technology Intel® Hyper-Threading Technology Intel® Trusted Execution Technology--Warm Regards,Javed LodhiIntel Go Green, Save The Environment!
Since you are a user who is looking forward to buying a laptop that would serve your day-to-day needs, I suppose you are not looking forward to graphical rendering, playing heavy games, etc; I suppose Core2Duo would be sufficient. Curiosity kills the cat, I can't help asking .. what are the prices of the said laptops and what is your actual budget?
Let me know and perhaps we can actually give you a better suggestion in terms of saving money.
Thank you, have a nice day!
Intel Go Green, Save The Environment!