Notices

Overclockers Forums > Hardware > CPUs > AMD CPUs
AMD CPUs
Forum Jump

OCing headroom: 955BE vs. 965BE vs. 970BE vs. 975BE

Post Reply New Thread Subscribe Search this Thread
 
 
Thread Tools
Old 11-10-10, 10:01 PM Thread Starter   #1
Dooms101
Member


 
Dooms101's Avatar 

Join Date: Dec 2009
Location: under a heatsink

 
OCing headroom: 955BE vs. 965BE vs. 970BE vs. 975BE


Alright so I am well aware that the 955BE, 965BE, 970BE, and 975BE (coming next month at 3.6GHz) are basically all the same stuff under the IHS with just a different stock multiplier. However, since I want to be benching one of these guys under water which has the best max headroom? I know these are the same chips, but if a 970BE can run 3.5GHz and a 955BE runs at only 3.2GHz at the same voltage and heat envelope, then would it not be reasonable to say the 970BE is most likely to have a better high-end OC. I have also heard that the 970BE is binned (I am pretty sure all Deneb cores are) for lower voltage and heat at higher clocks, which would make since. Plus, Global Foundries has been making the Deneb cores for a while now, and even though a 970BE and a 955BE are C3 steppings, I would imagine the much more recent 970BE would have a slightly more refined fabrication.

So I guess the question I am getting to, is there really any difference in these different models? And if there is, would the added headroom even matter on non-extreme cooling like LN2? Should I pay $155 for the 955BE or $190 for the 970BE?

__________________
[Dell Latitude E6530]............................[i7-3540M 3Ghz, 16GB, 750GB, 1080p LED]
[Hackintosh].......................[i3-3225 3.3Ghz, 8GB DDR3, 250GB SSD, GTX650 1GB]
Area51 Case Mod- - - - - - - - ODD Window Mod - - - - - - - -NZXT Phantom Triple Rad
Dooms101 is offline   QUOTE Thanks
Old 11-11-10, 12:18 AM   #2
DragoXT
Member

 
DragoXT's Avatar 

Join Date: Jun 2005

 
AMD does progressive improvements on their chips and since the 955 and 965 will be phased out of BE status, if you want the best chance at good silicon then you will want to get a 970 or 975. My 970 hits 3.8 at stock volts of 1.33, 3.9 at 1.36 and 4ghz at 1.41. Seeing as most of the early c3s tend to top out at 3.8-4ghz with 1.5v or better it is nice seeing the ability to hit higher clocks at lower volts. For you under water you will likely be able to tap close to 4.5ghz.

Overclocking is a crap shoot, but the likelihood of getting a 970 that is crap it will still get to 4ghz where as a crap 955 could top out at 3.6ghz. Price difference is a bit of a conundrum and basically boils down to what you are looking for, a better chance at more refined silicon that will have a higher chance of running 4.2ghz+ under water, or save some cash and get something that will maybe top out around 4.2ghz under water. With the way Deneb scales you should easily be able to get 500mhz off of the stock speed so the higher the stock speed the closer you are to the 4ghz range.

__________________
AMD Phenom 2 970BE.......................................AMD 3400+ Newcastle
Gigabyte 890FXA-UD5 v2.1...............................Abit KV-85
2x2gb Corsair Dominator @1600 8-8-8-24.......2x512mb OCZ DDR 400 Platinum rev 2 @400 2-2-2-5
Asus GTX460 1gb TOP.......................................Albatron Trinity 6800GT w/ NV Silencer 5 rev.3
WD Black 640gb............................................. ..Seagate 7200.7 SATA NCQ 160gb
Zalman CNPS10X Performa...............................ThermalTake Venus 12
Seasonic X650 Gold..........................................Ther malTake Pure Power 420
NZXT Guardian 921 RB.......................................Xblade
Asus VW224U 22" LCD......................................Samtron 17" CRT
DragoXT is offline   QUOTE Thanks
Old 11-11-10, 12:24 AM Thread Starter   #3
Dooms101
Member


 
Dooms101's Avatar 

Join Date: Dec 2009
Location: under a heatsink

 
I really want at least 4.0GHz speeds on a Deneb. The 970BE is $35 more than the 955BE and only $20 more than the 965BE. I think I will just wait for thanksgiving (newegg always has a massive sale around then) and see if I can get the 970BE for a little less. I do have a coupon for $20 off however... so a 970BE for ~$165 would be well worth it. I guess I am being picky with my money again.

__________________
[Dell Latitude E6530]............................[i7-3540M 3Ghz, 16GB, 750GB, 1080p LED]
[Hackintosh].......................[i3-3225 3.3Ghz, 8GB DDR3, 250GB SSD, GTX650 1GB]
Area51 Case Mod- - - - - - - - ODD Window Mod - - - - - - - -NZXT Phantom Triple Rad
Dooms101 is offline   QUOTE Thanks
Old 11-12-10, 11:43 AM   #4
Ar.Pi
Registered



Join Date: Feb 2007

 
Quote:
Originally Posted by Dooms101 View Post
I really want at least 4.0GHz speeds on a Deneb. The 970BE is $35 more than the 955BE and only $20 more than the 965BE. I think I will just wait for thanksgiving (newegg always has a massive sale around then) and see if I can get the 970BE for a little less. I do have a coupon for $20 off however... so a 970BE for ~$165 would be well worth it. I guess I am being picky with my money again.
Newegg has 15$ gift card going on the 970 right now.

I'm thinking on pulling the trigger on this combo:

http://www.newegg.com/Product/ComboD...t=Combo.556173

what say you?
Ar.Pi is offline   QUOTE Thanks
Old 11-12-10, 07:17 PM Thread Starter   #5
Dooms101
Member


 
Dooms101's Avatar 

Join Date: Dec 2009
Location: under a heatsink

 
I say I just noticed that today, and it's already sitting in the cart waiting for tuesday for me to buy it (along with a SeaSonic )

__________________
[Dell Latitude E6530]............................[i7-3540M 3Ghz, 16GB, 750GB, 1080p LED]
[Hackintosh].......................[i3-3225 3.3Ghz, 8GB DDR3, 250GB SSD, GTX650 1GB]
Area51 Case Mod- - - - - - - - ODD Window Mod - - - - - - - -NZXT Phantom Triple Rad
Dooms101 is offline   QUOTE Thanks

Post Reply New Thread Subscribe


Overclockers Forums > Hardware > CPUs > AMD CPUs
AMD CPUs
Forum Jump

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Mobile Skin
All times are GMT -5. The time now is 10:42 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
You can add these icons by updating your profile information to include your Heatware ID, Benching Profile ID or your Folding/SETI profile ID. Edit your profile!
X

Welcome to Overclockers.com

Create your username to jump into the discussion!

New members like you have made this the best community on the Internet since 1998!


(4 digit year)

Why Join Us?

  • Share experience
  • Max out your hardware
  • Best forum members anywhere
  • Customized forum experience

Already a member?