What processor is better?

[Paralyzed]

I totally have no knowledge of processors and such, but as I'm ordering a PC/laptop I was wondering what Processor is better and if the price matters in this case... So hopefully any of you can help me out choosing a good one.

 

Intel® Core™ i7 Processor 620M(2.66GHz,4MB cache)

Intel® Core™ i7 740QM (1.73 Ghz, 6MB, 4C)

Intel® Core™ i7 Processor 840QM (1.86 Ghz, 8MB, 4C)

[Tweezy]

I would go with the;

 

Intel® Core™ i7 Processor 840QM (1.86 Ghz, 8MB, 4C)

 

Cache is bigger, and I would just overclock it to around 2.5/3GHz.

[Toxin]

I would go with the;

 

Intel® Core™ i7 Processor 840QM (1.86 Ghz, 8MB, 4C)

 

Cache is bigger, and I would just overclock it to around 2.5/3GHz.

 

Overcloking on a laptop? Melting plastic? lol wut.

[Labarr]

I got the 740 in my laptop.. I really dont see the need to get the 840..

[Tweezy]

Overcloking on a laptop? Melting plastic? lol wut.

 

Not at all. You can overclock I7's to over 4GHz, maybe even 5; overclicking to around 2.5GHz will hardly increase the temperature.

 

Anyway, if you have a plastic laptop unlucky.

[Ronen]

840qm beats both...in some benchmarks the 620M beats the 720qm ... here's my source

 

http://www.notebookcheck.net/Mobile-Processors-Benchmarklist.2436.0.html

[Sniper]

I've always gone AMD and never had a problem. Plus, they're less expensive than Intel. Just my two cents.

[Tweezy]

840qm beats both...in some benchmarks the 620M beats the 720qm ... here's my source

 

http://www.notebookcheck.net/Mobile-Processors-Benchmarklist.2436.0.html

 

840qm has a bigger cache, easy to see!

 

Also, if you are going to overclok your CPU, make sure you understand everything from this help guide;

 

http://www.maximumpc.com/article/features/ultimate_core_i7_overclocking_guide_we_push_nehalem_its_limits

 

If not, don't do it, overcloking your CPU will void your warranty and can give overheating factors if done incorrectly. But, if done correctly it can be a good thing! Somehow my friend managed to reduce the temperature after overclocking... (2.5GHz to 3.2GHz!)

[Paralyzed]

Thanks for the info, I guess I know which one is better now. Overclocking might be a problem for me though!

[b0red]

Why are you going with a laptop? If your just keeping this for gaming at home I suggest building one but if its for like school and travel I understand.