i7-3930k 1k ppd more than i7-2600k

[Scorpuk]

Both running at stock speeds.

At most the i7-3930k was 11k ppd more than the i7-2600k today. (32k ppd v 21k ppd)

i7-2600k is running Ubuntu 12.04
i7-3930k is running under VM with Ubuntu 10.10 on Windows 7 64bit.

Might try a usb boot to Ubuntu at the weekend and see what I get.


Any suggestions?

[RedFlames]

try ubuntu 12.04, and try the -lowlatency kernel if you haven't already

but a 50% increase [from 50% more cores/threads] looks about right from where i'm sat, any improvements SB-E has over SB will most likely negate the effects of the 3930's slightly lower clock speed...

and it's loads better than what i'm getting from my knackered 920

[Scorpuk]

The computer must have been up to something as its now back up to 33k ppd on the i7-3930k.

mmmm back up to 101k ppd overall.

Still got a q6600 to build from spare parts. Just need a case.


Edit: no idea what -lowlatency kernel is. Can you explain? Tnx.

[RedFlames]

[all this is assuming a bog standard ubuntu install]

ubuntu installs the linux-generic kernel by default, from precise [12.04] onwards there's a linux-lowlatency [previously linux-rt iirc] kernel. It can lag update wise behind the generic one though.

type

sudo apt-get install linux-lowlatency linux-headers-lowlatency

to the console to install [or do it via package manager of choice]

it should ask you to choose which kernel you want to use during startup [if not you'll have to press esc during startup if memory serves], and you can check which kernel you're using the console:

uname -r

[Scorpuk]

Cheers RedFlames.

I'll give it a go at the weekend. :-)

[debs3759]

I used to get around 25K @ 5 GHz on a 2700K. When I'm not benching with it, I get over 50K @ 4.6 GHz on a 3930K.

[Scorpuk]

I tried to follow the overclcoking guide in the mag, but the vcore temp just kept on going up. I eventually rebooted and reset the bios when it hit 90°C.

Reading was from Asus AI suite II on my Sabretooth X79 m/b.

[the_kille4]

Hmmm... might as well go to the 4.7GHz route. I did try it out previously and it did work out 24/7. Although I am quite happy with the 30k ppd I am getting though. But, I would really want to get into the top 20 producers thingy before I hit one mil so shouldn't be too difficult.