Intel Quad Core or Core Duo??

[inerstrength]

Hello everybody,
I am kinda new at this not really.
I have a Intel® Pentium® Processor E2180 (1M Cache, 2.00 GHz, 800 MHz FSB) - intel website (http://ark.intel.com/Product.aspx?id=31733).

I am thinking of replacing my current processor with either a Duo or a Quad core, but I have been going through forums and topics like this are a bit outdated. But what I want to know is that would it be smarter to go Duo? or Quad? and do the extra cores do anything to "expand" preformance? like do the extra cores/threads multiply the max GHz or does it stay the same.
example:
Intel® Core™2 Duo Processor E8300
(6M Cache, 2.83 GHz, 1333 MHz FSB)

Intel® Core™2 Quad Processor Q9505S
(6M Cache, 2.83 GHz, 1333 MHz FSB)

do the extra cores/threads of the quad out "GHz" the duo?
Looking for the best performance in gaming and non-gaming. 😀
-I am a Gamer

OH and I think I need more RAM right????

Specs:
Acer Aspire M1641 with a Nvidia MCP73 motherboard *LGA 775
Nvidia Geforce 9500 gt
Corsair 430 watt PSU
2GB RAM
(only experience of MODing PC's replacing Graphics card) 😗

 

[king smp]

I don't know that it's worth it to get a new minor CPU upgrade and RAM. You can just do something like this build, which is leaps and bounds better and you can upgrade it to an i5 2400 quad core easy.

BIOSTAR H61ML LGA 1155 Intel H61 Micro ATX Intel Motherboard $60
http://www.newegg.com/Product/Product.aspx?Item=N82E16813138313

Intel Core i3-2100 Sandy Bridge 3.1GHz 2 x 256KB L2 Cache 3MB L3 Cache LGA 1155 65W Dual-Core $125 (with $10 off right now)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115078&cm_re=i3_2100-_-19-115-078-_-Product

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) $39
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231274&cm_re=ddr3-_-20-231-274-_-Product

Total: $205 (-$10 promo)

You are so RIGHT
but the OP doesnt want to do a motherboard/cpu changeout
his budget is low
also he has a Acer OEM tower so I am not sure it could take a standard ATX/mATX mobo
might be BTX or proprietary

 

[inerstrength]

Thaks for the info WolfRam, I will definately look in to getting those parts when I get there.... >.>

I have e-mailed tigerdirect, about the return policy thing of the processor. I like answers in hard writting XD. Hopefully it is returnable when it doesn't work ><

 

[drkA]

Just relax and get the pentium e6700 , it will works
My computer are the same like u , but with e2200 processor
1 year ago i upgrade to e6700 and its work fine