thinkpad t430s cpu upgrade; i5 to i7-qm

[fire400]

UPDATE:
...the laptop CPU is soldered onto the motherboard.
not going to bother with BGA or even attempt it.
and as far as I know, the t430s never shipped with options offering anything beyond the standard i7-3520m.

ORIGINAL MESSAGE:

http://support.lenovo.com/us/en/documents/pd024706#mem

currently has i5 and 16GB ram, win8.1 pro x64.

SSD's; plextor m5m 128gb msata, and 840 pro 512gb.

HD 4000 graphics.

running advanced stock software with a lot of intense charts and a lot of chrome browsers with tabs and a few other low key software.

will be running "teamviewer."

CPU mobo socket: G2

will my current i5 mobo be able to take the higher end i7's without having to be forced to swap motherboards? reason I'm switching CPU's is because the system is glitching when the software gets slightly heavy use.

does anyone have experience with the diverse limitations of the motherboard bridges if I upgrade the CPU? i want to keep the CPU relatively cool on the i7 upgrade options, so I don't want to go all out with the Intel® Core™ i7-3920XM Processor Extreme Edition.

i'm considering the Intel® Core™ i7-3820QM Processor, to get the quad with 8mb cache, as the lowest GHz option.
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i7-3820QM+@+2.70GHz

(TDP) - thermal design power, an issue?
however, if at this point, power draw and cooling doesn't matter anymore 'cuz the laptop will get hot anyway, I am willing to shell out to the maximum performance CPU. will the battery drain considerably quicker when on the go?

cost is not an issue at this point, but I like the smaller form factor of the t430s, reliability, touchpad, and its weight and port flexibility options when I travel (ultrabay battery and ssd options).

 

[aj654987]

I have my doubts its the CPU that is causing the issues, I cant see how stock software could be too much for an i5. Have you kept task manager in the back ground and are seeing cpu pegged at 100%?

That i7 has 4 cores instead of 2, after checking the above, I would see if the software is even optimized for 4 cores, otherwise the improvements may be minimal. In the passmark benchmark you linked to, it uses all 4 cores, which is why it will have a much larger score over your current i5, but that may not be the results you see if your software isnt written for it.

 

[jji7skyline]

I have my doubts its the CPU that is causing the issues, I cant see how stock software could be too much for an i5. Have you kept task manager in the back ground and are seeing cpu pegged at 100%?

That i7 has 4 cores instead of 2, after checking the above, I would see if the software is even optimized for 4 cores, otherwise the improvements may be minimal. In the passmark benchmark you linked to, it uses all 4 cores, which is why it will have a much larger score over your current i5, but that may not be the results you see if your software isnt written for it.

All good points. It looks like TDP is unlikely to be an issue because that CPU was available as an upgraded configuration according to the lenovo website.