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I7-4960X VS I7-3960X Is the 4960x really better than 3960x in terms of OC'ing?

post #1 of 32
Thread Starter 
I am trying to decide if i should get it or not.

I am only concerned with overclocking ability and stability. I dont really care about Benchmark scores.

I just want maximum overclock on Water and maximum drive to my GPU's

My current I73960X has a problem that i dont want to discuss on this thread because i have reached my breaking point in troubleshooting

It on Asus ROG forum and basically the memory controller or whatever on this processor is no longer working correctly.

So i need to either get it replaced or go with the I74960X


So ive seen some reviews and comparisons with both of these processors and i did see that the i73960x performs slightly better in the overclocking arena.

what are your experiences with both?

I really want 5.0ghz and im not sure if anyone has been able to take the i74960x to that level.
post #2 of 32
Thread Starter 
i saw this comparison on the I7-3960X and the I7-4960X

i7-3960X
The number of controllers 1
Memory channels 4
Supported memory DDR3-1066, DDR3-1333, DDR3-1600


I7-4960X
The number of controllers 1
Memory channels 4
Supported memory DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866


I noticed both dont show that they support DDR3-2133

Does this mean that my current RAM Corsair Dominator GT CMT16GX3M4X2133C9 DDR3-2133mhz wont be controlled properly by these processors?
post #3 of 32
The ram is not officially supported, so may need a bump in VTT voltage to get it stable.
Both my 4960x and 3960x can do 2133Mhz. Albeit, at those ram speeds, the maximum CPU overclock can be compromised. Depends on the chip lottery.
My 4960x does 4.5Ghz 1.40v and 3960x 4.8Ghz 1.37v. They bench pretty much identically. 3960x seem to overclock better overall, the chip lottery with 4960x is harder.
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Lounge Gaming
(13 items)
 
NAS
(14 items)
 
Beast
(17 items)
 
CPUMotherboardGraphicsRAM
i7 7700k 4.9Ghz 1.312v Asus Z170i Pro Gaming MSI GAMING GTX 970 1545/3900Mhz 1.23v G.Skill Trident Z 2x8GB 3000Mhz 14-14-32 1.35v 
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post #4 of 32
Thread Starter 
Quote:
Originally Posted by jasjeet View Post

The ram is not officially supported, so may need a bump in VTT voltage to get it stable.
Both my 4960x and 3960x can do 2133Mhz. Albeit, at those ram speeds, the maximum CPU overclock can be compromised. Depends on the chip lottery.
My 4960x does 4.5Ghz 1.40v and 3960x 4.8Ghz 1.37v. They bench pretty much identically. 3960x seem to overclock better overall, the chip lottery with 4960x is harder.

Thanks for your advice!

So a bump in VTT volts you say? Is this setting for the RAM or the CPU?
post #5 of 32
No, SandyE is the overclockers choice.


Although I spent last night tweaking my voltages, Ivy-e is still a very nice chip smile.gif

If you're struggling to get memory stable up VCCSA as this is the IMC voltage. 1.2v should be enough for 16gb.
try VTT @ 1.1 - 1.115


Edited by Silent Scone - 3/20/14 at 2:50am
post #6 of 32
My 4960X only does 4.5 at the voltage I am comfortable with. 4.5 GHz 4960X = around 4.7 GHz 3960X. I have both by the way, and when the OC capability runs out of my 4960X at only 4.5 the 3960X just keeps shifting gears towards 5 GHz or more. biggrin.gif

4.5 GHz 4960X will not hold you back anywhere anyway.
post #7 of 32
3930K / 3960 is the overclockers champion smile.gif I have a feeling HaswellE will be even more disappointing in this regard.

What voltage do you consider to be happy with out of interest? I'd consider 1.4v to be the maximum for 24/7 use. Maybe 1.45-1.5v for short runs if you're on water cooling, but that is definitely considered degrading voltage.
post #8 of 32
Thread Starter 
Quote:
Originally Posted by Silent Scone View Post

No, SandyE is the overclockers choice.


Although I spent last night tweaking my voltages, Ivy-e is still a very nice chip smile.gif

If you're struggling to get memory stable up VCCSA as this is the IMC voltage. 1.2v should be enough for 16gb.
try VTT @ 1.1 - 1.115



what about 24GB to 32GB?

Right now im on 24GB but will be adding in 32GB later
post #9 of 32
yes,Maybe 1.45-1.5v for short runs if you're on water cooling, but that is definitely considered degrading voltage.thanks SShln1
post #10 of 32
Thread Starter 
Thanks Guys!l

I went with the I73960X again!


it solved all my problems

I got it currently at 4.8ghz and 24GB1600mhz memory
with Cstates and SpeedStep Enabled.

Ran OCCT for 2 and 1/2 hours stable

Thanks!

I want to take my memory to their tested clocks which is 2133mhz but im not sure how i should tweak my voltages or where i should tweak for that matter to remain stable.

any ideas?
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