Compare intel Core™ i7-620M and Intel® Core™ i7-720QM

[whoman13]

Hello,
Can you guys please tell me the diffrence between i7-720QM and i7-620?
The interesting thing is that i7- 720 is about 120 pounds cheaper in Dell lap tops while it has a higher Cache!(6MB L3)
I need the laptop for heavy 3D design and analysis applications and what I noticed on Intel website was many advantages available for i7-620 such as integrated Graphic,Intel HD graphic and etc which apparently not available on i7-720. Are these important to pay 120 pounds more?

Thanks

 

[WR2]

i7-620M Arrandale is 32nm dual core 2.66Ghz (Turbo 3.3Ghz) with GPU on the same package as CPU.
i7-720QM Clarksfield is 45nm quad core 1.6Ghz (Turbo 2.8Ghz). The i7-720QM get's its Intel HD Graphics on a separate part of the laptop chipset.

If you earn a living doing 3D design and analysis and your applications support multi-core, multi-threaded CPUS it's probably worth your money to upgrade to the quad core. 4 cores, 8 threads vs 2 cores and 4 threads. There is also a chance the faster dual core CPU will be better suited to your software. Be sure to check that out.

 

[popatim]

Wont you need a dedicated workstation gpu (quadro or fire gl) making either integrated solution useless ?

The 32nm core and .5Ghz clockspeed boost would be they way to go since in your case time really is money,

 

[warmon6]

Wont you need a dedicated workstation gpu (quadro or fire gl) making either integrated solution useless ?

For some, that would be a yes if they can use the gpu, but for most no.

 

[Lakshya]

720qm is the best choice for most probably anything, be it compared to an i5 540m or i7 620m, but i7 720qm is future-ready and will have great respect at least till 3 yrs.

 

[warmon6]

720qm is the best choice for most probably anything, be it compared to an i5 540m or i7 620m, but i7 720qm is future-ready and will have great respect at least till 3 yrs.

Kinda late to the party, arnt yea?