AMD's 45nm CPUs are designed to overclock - bit-tech.net Forums

Tim S · 21st Nov 2008, 14:22

http://www.bit-tech.net/news/2008/11...ed-for-ocing/1

AMD's new 45nm Deneb CPUs are apparently designed for overclocking should hit 4GHz easily and 6GHz with extreme cooling.

liratheal · 21st Nov 2008, 14:26

I'll be waiting for some reviews from you fine chaps before I make up my mind as to whether I bother with this new batch.

All these numbers sound nice, but I've not seen any hard evidence to back them up, yet.

The Infamous Mr D · 21st Nov 2008, 14:28

In the words of the immortal legend, Alan Partridge:

"Let battle commence."

Tim S · 21st Nov 2008, 14:35

Quote:

Originally Posted by liratheal

I'll be waiting for some reviews from you fine chaps before I make up my mind as to whether I bother with this new batch.

All these numbers sound nice, but I've not seen any hard evidence to back them up, yet.

I think it's best to wait... don't want to get too excited at this point, otherwise we'll all get caught with weiner in hand like we did when Phenom launched.

Wolfe · 21st Nov 2008, 14:36

That's rather interesting, since I do believe that transistors do not function at all below approximately -120 dec C.

I don't remember the exact temperatures, but I know it's true for BJT devices. It may not be so for MOS devices. I'l try and look them up at work tomorrow.

Bindibadgi · 21st Nov 2008, 14:39

Quote:

Originally Posted by Wolfe

That's rather interesting, since I do believe that transistors do not
function at all below approximately -120 dec C.

Well if that was the case, there would be no extreme OC with LN2 action

liratheal · 21st Nov 2008, 14:39

Quote:

Originally Posted by Tim S

I think it's best to wait... don't want to get too excited at this point, otherwise we'll all get caught with weiner in hand like we did when Phenom launched.

True enough.

That said, I'm not overly disappointed in the performance of my Phenom, but hey. It still wasn't what was promised.

Wolfe · 21st Nov 2008, 14:40

Whoops, found some info.

BJT devices do indeed degrade in performance at cryogenic temperatures. However, MOS devices apparently improve, so never mind.

Wolfe · 21st Nov 2008, 14:42

Quote:

Originally Posted by Bindibadgi

Quote:

Originally Posted by Wolfe

That's rather interesting, since I do believe that transistors do not
function at all below approximately -120 dec C.

Well if that was the case, there would be no extreme OC with LN2 action

Not so. Even when using LN2, the chip does not entirely reach the temperature of the LN2. You have temperature differentials across whatever mechanism you are using to transfer head from the chip's die to the LN.

C-Sniper · 21st Nov 2008, 15:08

I think i will start to upgrade to this new level though... the SB600 SB is sucking right now. Although DFI now has the 790FX NB with SB750 SB out now.... hmmm....

Tim S · 21st Nov 2008, 15:09

Generally, something will stop working by the time the bottom of your LN2 pot reaches -130... although some might hit closer to -140. If you drop below -145 without things becoming dysfunctional, that's an exceptional circumstance IMO.

Bindibadgi · 21st Nov 2008, 15:59

Quote:

Originally Posted by Wolfe

Not so. Even when using LN2, the chip does not entirely reach the temperature of the LN2. You have temperature differentials across whatever mechanism you are using to transfer head from the chip's die to the LN.

Yes true but nitrogen liquifies at -180C, so the chances of hitting -100 are high when you've got a big copper blob firmly bolted to a lapped CPU.

EDIT: Well Tim applies real world to my Chemistry degree :P

Greenie · 21st Nov 2008, 15:59

Quote:

Originally Posted by The Infamous Mr D

In the words of the immortal legend, Alan Partridge:

"Let battle commence."

When I think of Partridge, I hear "AAGHGGH! It's hotter than the sun!" lets hope they get the TDP down!

lewchenko · 21st Nov 2008, 16:08

The last generation Phenom wasnt a bad cpu.. it just wasnt as good as intel's offerings at the time. I hope that this new Phenom (new name needed as well really) is as good as some people believe, as competition will be good for us all.

I find the i7 platfrom VERY expensive. £260 for an entry (yet very powerful) processor ? When the e6750 (now e8400 etc) was all the rage, I didnt pay anywhere near £260 for it. Nor did I spend >£200 on a motherboard either. Then there is DDR3 (6GB = £200) . If an AMD platform costs less overall and is within spitting distance of Intel... then I would definitely buy it.

devdevil85 · 21st Nov 2008, 16:50

Quote:

Originally Posted by lewchenko

If an AMD platform costs less overall and is within spitting distance of Intel... then I would definitely buy it.

Totally agree. I have been waiting for AMD to become the nimble foe they once were. I'm still using a 2500+ for God's sake. I hate Intel even though they do make good stuff. £260 is too expensive for an entry, I agree, and that's what happens when there isn't competition.....

airchie · 21st Nov 2008, 17:14

If you get things cold enough, don't they start to superconduct?
Could be speaking utter pants but its just a random factoid (or is it a fictionoid?

) that is floating about in my head.

Anyway, I'm keen to see how well this latest round of CPUs from AMD perform.
I like the idea of them actually listening to what people (well, OCers anyway) want.

Yemerich · 21st Nov 2008, 17:24

Does a "cpu that is meant to be overclocked" means that it come to the shops underclocked?

In other words, is it underpowered?

Goty · 21st Nov 2008, 17:42

Quote:

Originally Posted by airchie

If you get things cold enough, don't they start to superconduct?
Could be speaking utter pants but its just a random factoid (or is it a fictionoid?

) that is floating about in my head.

Anyway, I'm keen to see how well this latest round of CPUs from AMD perform.
I like the idea of them actually listening to what people (well, OCers anyway) want.

Umm... yes, but nowhere nearly as warm as the temperatures obtained by liquid Nitrogen. The highest temperature superconductors still only obtain that state at temperatures around -220C.

HourBeforeDawn · 21st Nov 2008, 18:48

Well either way I am glad to see a 4ghz on air coming from AMD but they are still doing things a bit to slow, they need to step up the AM3 because the longer they wait the farther Intel will get with releasing something that will be better at the time AM3 launches ~_~

Anyhow the Phenom II for AM2+ is certainly on my list to upgrade too, I have the 9950BE on ASUS latest board and Im loving it so I cant wait to get my hands on the new 45 ^__^

frontline · 21st Nov 2008, 19:06

Hmm, interesting. Wonder how well these will work on my Â£50 Abit micro-ATX motherboard with a 780G chipset and SB700

21st Nov 2008, 14:22	#1
Tim S Pewlius Caesar bit-tech Staff Join Date: Nov 2001 Location: Ascot, Berks Posts: 18,021	AMD's 45nm CPUs are designed to overclock http://www.bit-tech.net/news/2008/11...ed-for-ocing/1 AMD's new 45nm Deneb CPUs are apparently designed for overclocking should hit 4GHz easily and 6GHz with extreme cooling. __________________ Tim on Twitter \| Tim's Blog \| Tim's Flickr The bit-tech Blog \| bit-tech on Twitter \| Join the bit-tech & Custom PC folding team (#35947)

21st Nov 2008, 14:26	#2
liratheal Just got a great book on tape Join Date: Nov 2005 Location: High Wycombe, UK Posts: 3,551	I'll be waiting for some reviews from you fine chaps before I make up my mind as to whether I bother with this new batch. All these numbers sound nice, but I've not seen any hard evidence to back them up, yet. __________________ Gigabyte MA790FX, X4 9950 Black Edition, 8gb Geil Black Dragon, 2x4870 512mb, Antec TruePower Quattro 850w I game, Do you?

21st Nov 2008, 14:36	#5
Wolfe Hypermodder Join Date: Sep 2003 Location: /root Posts: 768	That's rather interesting, since I do believe that transistors do not function at all below approximately -120 dec C. I don't remember the exact temperatures, but I know it's true for BJT devices. It may not be so for MOS devices. I'l try and look them up at work tomorrow. __________________ User subject to random acts of normality.

21st Nov 2008, 14:40	#8
Wolfe Hypermodder Join Date: Sep 2003 Location: /root Posts: 768	Whoops, found some info. BJT devices do indeed degrade in performance at cryogenic temperatures. However, MOS devices apparently improve, so never mind. __________________ User subject to random acts of normality.

21st Nov 2008, 15:09	#11
Tim S Pewlius Caesar bit-tech Staff Join Date: Nov 2001 Location: Ascot, Berks Posts: 18,021	Generally, something will stop working by the time the bottom of your LN2 pot reaches -130... although some might hit closer to -140. If you drop below -145 without things becoming dysfunctional, that's an exceptional circumstance IMO. __________________ Tim on Twitter \| Tim's Blog \| Tim's Flickr The bit-tech Blog \| bit-tech on Twitter \| Join the bit-tech & Custom PC folding team (#35947)

21st Nov 2008, 14:28	#3
The Infamous Mr D Multimodder Join Date: Feb 2008 Posts: 80	In the words of the immortal legend, Alan Partridge: "Let battle commence."

21st Nov 2008, 16:08	#14
lewchenko Supermodder Join Date: Dec 2007 Posts: 322	The last generation Phenom wasnt a bad cpu.. it just wasnt as good as intel's offerings at the time. I hope that this new Phenom (new name needed as well really) is as good as some people believe, as competition will be good for us all. I find the i7 platfrom VERY expensive. £260 for an entry (yet very powerful) processor ? When the e6750 (now e8400 etc) was all the rage, I didnt pay anywhere near £260 for it. Nor did I spend >£200 on a motherboard either. Then there is DDR3 (6GB = £200) . If an AMD platform costs less overall and is within spitting distance of Intel... then I would definitely buy it.

21st Nov 2008, 17:24	#17
Yemerich What's a rebimboca da parafuseta? Join Date: Sep 2004 Location: Sao Paulo - Brazil Posts: 712	Does a "cpu that is meant to be overclocked" means that it come to the shops underclocked? In other words, is it underpowered? __________________ Bit Tech is more than games and hardware - check out the mods too. Don't let modding die in Bit-Tech.net.

21st Nov 2008, 18:48	#19
HourBeforeDawn a.k.a KazeModz Join Date: Oct 2006 Location: Cali, USA Posts: 1,785	Well either way I am glad to see a 4ghz on air coming from AMD but they are still doing things a bit to slow, they need to step up the AM3 because the longer they wait the farther Intel will get with releasing something that will be better at the time AM3 launches ~_~ Anyhow the Phenom II for AM2+ is certainly on my list to upgrade too, I have the 9950BE on ASUS latest board and Im loving it so I cant wait to get my hands on the new 45 ^__^ __________________ Current Rig: RubyRED • Lian-Li A05B • (2) Swiftech 220 Radiators • (2) D5 Variable Pumps • (2) Res • and a whole lot of modding • Retired Rig: Project F.E.A.R. • TT Lanbox Lite • Swiftech H2O-120 • Q6600 G0 OC@3.6ghz • 2900XT • 4gb SuperTalent Memory •

21st Nov 2008, 19:06	#20
frontline Multimodder Join Date: Jun 2007 Posts: 207	Hmm, interesting. Wonder how well these will work on my Â£50 Abit micro-ATX motherboard with a 780G chipset and SB700 __________________ Phenom II X4 955 @ 3.2ghz \| Asus Crosshair III Formula \| Coolermaster V8 CPU Cooler \|4Gb Corsair Dominator DDR3 at 1333mhz \| Sapphire Radeon 5870 \| Crucial M225 128Gb SSD \| Samsung SyncMaster 226BW