Is the 2960xm cooler than 2920xm & ivb under oc?

I want to "upgrade" my 17x r4 cpu to snb extreme.
Because I heard some people said that ivb oc temp is worse than snb.
Is the 2960xm cooler than 2920xm?

 

You can't use a Sandy Bridge CPU on the m17x R4. The 2960 and 2920 you speak of are only for the R3. Technically the Sandy bridge CPUs are compatible with the Ivy bridge chipsets, and vice-versa. But Dell/Alienware locked that function out. So the 3920XM is the only extreme CPU the R4 can take.

 

That and a 4.2ghz stock voltage ivy bridge matches a 4.8ghz sandy so it gets a bit silly to compare the thermals at that point.

 

No,someone has already used 2920xm qs on 17xr4.It works perfect~

 

Thanks 4 reply~
snb's oc is much better absolutely

 

Imma slap the next person that says you can't use a sandy bridge cpu in a ivy bridge unit. they are THE SAME CPU SOCKET!!! M18x R2 have used the sandy m17x R4's have used the sandy...... For the love of god do some research before you open up. I think I even made the same reply to you in a previous forum...... and he was asking about temps.... and no ivy actaully is cooler by a little bit. they tend to go higher in clock before seeing the same temps as a 2960xm but pretty much the 2960xm is a 3920xm just different gen.

 

Calm down brosef, no need to be so harsh, he was just misinformed. Yes, a 2920XM/2960XM should work fine in M17xR4, they were originally shipped with SNB chips, so there is no reason why it wouldn't work. However, 2920XM should run just as warm/cool as the 2960XM. No changes to chip, just a slightly higher hard coded multiplier. IVB vs SNB is another story though. I would look at the 3720QM ES chip, its essentially a 3920XM chip, since it has large cache and unlocked multipliers.

 

So the 2920/60 actually no difference.
In theory,ivy should be cooler than snb.
But some people said that ivy's die size is too small,so when the heat suddenly come by max load cpu,heat inside the chip can't go out fast enough.Then oc will be invalidation.
I'm not sure the truth...

 

Careful, I slap back.

I did NOT say a Sandy Bridge CPU won't work on an IVB chipset. SNB CPUs are designed to be forward compatible with IVB chipsets as are IVB CPUs are backwards compatible with SNB chipsets (reread my post). Ivy Bridge (microarchitecture) - Wikipedia, the free encyclopedia

Originally, the R4s shipped out with Sandy Bridge CPUs, but the IVB CPUs came into stock right after the R4s release so most of the R4 models then got the IVB CPUs. Since then, I was told by one of the Alienware Reps (still trying to find his post) that the R4's SNB functionality went away with one of the BIOS updates in the same way Dell/AW locked out forwards compatibility of the R3's with the new IVB CPUs. Since IVB and SNB are part of the same tick-tock series, both CPUs are pin for pin electrically identical. It may just require a bit of fiddling with the BIOS to get it to work. Or it may not require any workarounds at all. Wouldn't be the first time an OEM said their notebooks couldn't have a certain upgrade when it fact they can (it keeps my hope alive of getting a 680m in my R2!)