Question Upgrade CPU on Dell Lattitude E2640

[RIBob]

Currently, the laptop has an I5 CPU, but I know that Dell shipped these computers with I7 CPUs. Want to upgrade to the I7 CPU, but am unable to discover the EXACT CPU that Dell used. Don't want to hot-rod the laptop, just want to install a better CPU that will run without any problems.

The computer already has an SSD installed, and max RAM. Still want to max it out, using OEM/GTG I7 CPU.

Thanks for reading.

 

[Phaaze88]

Just a heads up, but you do know that the move to a decent I7(some of them aren't any better than you current cpu) will require a bigger cpu cooler than the one currently on your I5, and a 90w or greater power adapter?

http://www.cpu-upgrade.com/mb-Intel_(chipsets)/QM67_Express.html
Ignore the Ivy Bridge(3xxx) I7s on that list, as they won't be compatible with your laptop.

 

[RIBob]

Yes, I know that. Hence my asking for the specific model number of the OEM, originally-installed, I7 CPU that was certified by the Mfr (Dell) to work with this laptop.

As mentioned, I don't want to over-tax this laptop. Just need to know the EXACT model number of the OEM I7 CPU that Dell installed.

AC power unit is hi-cap, so no problem there.

 

[Phaaze88]

Dell Latitude E6420 review: Dell Latitude E6420

Dell's Latitude E6420 isn't a massively exciting machine, but it is a solid business unit that should handle most tasks that you throw at it.

www.cnet.com

I7-2640M: https://ark.intel.com/content/www/u...-2640m-processor-4m-cache-up-to-3-50-ghz.html
I5-2520M: https://ark.intel.com/content/www/u...-2520m-processor-3m-cache-up-to-3-20-ghz.html

Well, there it is... but what's to be gained from this?

 

[RIBob]

A slight increase in CPU speed, and the satisfaction of upgrading my laptop for scant cost. Are those EXACT models of CPUs the ones used in my particular computer?

FWIW, I can do the change-over myself. Done such a few times on other laptops.

 

[RodroX]

Dell Latitude E6420 review: Dell Latitude E6420

Dell's Latitude E6420 isn't a massively exciting machine, but it is a solid business unit that should handle most tasks that you throw at it.

www.cnet.com

I7-2640M: https://ark.intel.com/content/www/u...-2640m-processor-4m-cache-up-to-3-50-ghz.html
I5-2520M: https://ark.intel.com/content/www/u...-2520m-processor-3m-cache-up-to-3-20-ghz.html

Well, there it is... but what's to be gained from this?

Im with Phaaze88 on this one, thats no much of an upgrade from my point of view either.

Also are you sure your able to swap the cpus around that easy?, I mean first you will have to disassemble the whole notebook, which is not imposible but it does require some important tech skills, but, Are you sure the cpu is in a socket you can unlock and insert a new one? I can be wrong on this, but usually it was soldered to the motherboard PCB. nvm all this new post added while writing it

Anyways, seems to me that the only small benefit will be a bit more L3 Cache and some extra MHz, but you will still have to deal with a 2 core/4 thread CPU, from a really, really old generation core tech, back to 2011.

If programs and browsers, are lagging you wont gain much more performance from that cpu swap.

There were huge improvements on Intel's core architecture over the years, almost eight years later the diference with new CPUs is like out of scale.

 

[Phaaze88]

A slight increase in CPU speed, and the satisfaction of upgrading my laptop for scant cost. Are those EXACT models of CPUs the ones used in my particular computer?

FWIW, I can do the change-over myself. Done such a few times on other laptops.

"An unnoticeable increase in cpu speed... at the satisfaction of 'upgrading' your laptop by throwing away $40-80...

This: https://ark.intel.com/content/www/u...-extreme-edition-8m-cache-up-to-3-70-ghz.html
And this: https://ark.intel.com/content/www/u...2860qm-processor-8m-cache-up-to-3-60-ghz.html
Make far more sense for upgrades, but their power and temperature demands must be met.

 

[RIBob]

I understand what you're saying. In my particular case, since I can do the procedure myself, the small improvement is worth the small cost.

 

[RIBob]

I have no means to augment the laptop's cooling capacity, so CPUs not offered by Dell for this computer, which exceed the TDI of the original CPUs, are of no use to me in this application.

As previously mentioned, I simply want the exact model number of the I7 CPU that Dell offered for my computer. I have zero interest in overwhelming the heatsink/cooling ability of my laptop. Just want a simple, incremental upgrade, with zero hassles.

 

[Phaaze88]

Well, okey-dokey! I did my part.

 

[RIBob]

I am very grateful for all the constructive--and instructive-- comments. I realize this proposed course of action might not make sense to some, but I thank everyone for their comments.