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Phenom @ 3.7Ghz

Scougar

Scougar

Scougar

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http://www.fudzilla.com/index.php?option=com_content&task=view&id=7868&Itemid=1

Written by Fudzilla staff Thursday, 12 June 2008 12:05
Only water
Polish guy called Paweł Milanowski (Milans) has just broken an overclocking record of Phenom X4 9850 overclocking. He managed to jump from 2.5GHz stock clock to 3.7GHz with water cooling.

His secret weapon was DFI LankParty DK 790FX board and 1.48V voltage on the CPU but last time we tried with 790FX and the same CPU we could hardly go over 3GHz. Pawel used 1GB Crucial 1066 memory and 500W U33 PSU from Tagan. Good job Paveł.
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Impressive :) Wonder how the system actually runs, and what sort of performance he's getting. Hopefully not just a one off attempt, and that it is able to be used everyday :) (doubtful though :( )

Matthew
 
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I've seen benchmarks posted at 3.5/6GHz, so 3.7 isn't much of a stretch with serious thought.

At 3.2GHz, the Phenom is level with a Q6600 clock-for-clock. At 3.7GHz...?
 
I've got 3.6Ghz on my Q6600 with air cooling, haven't lapped it or anything. Its not that hard to achieve 3.7Ghz, but I don't know about AMD...
 
yeah all good with intel but i hear AMDs phenoms are faster clock for clock at higher frequencies than there intel rivals due to speeding up the L3 cache or something, this true?
 
Gashman said:
yeah all good with intel but i hear AMDs phenoms are faster clock for clock at higher frequencies than there intel rivals due to speeding up the L3 cache or something, this true?
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Pretty much: the L3 cache on the Phenoms is pretty slow in comparison to the rest of the chip, impinging on the benefits brought about by the internal memory controller, etc.

Speeding up the chip reduces this latency (particularly the HT freq), making QXXX chips and Phenoms break even at around 3.2GHz.

The key thing to remember is, however, that there is no guarantee of such a clock on a Phenom. But then, there isn't on the Qxxx chips, either. :)
 
mrthingyx said:
Pretty much: the L3 cache on the Phenoms is pretty slow in comparison to the rest of the chip, impinging on the benefits brought about by the internal memory controller, etc.

Speeding up the chip reduces this latency (particularly the HT freq), making QXXX chips and Phenoms break even at around 3.2GHz.

The key thing to remember is, however, that there is no guarantee of such a clock on a Phenom. But then, there isn't on the Qxxx chips, either. :)
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I seriously did not realise that. Changed my perception of the phenom a little! (I actually thought on first reading you meant @ 3.2ghz it's about the performance of a stocked clocked Q6600 (2.4Ghz) lol. Glad I re-read it!!!)

Matthew
 
If I can get a phenom that does 3.7ghz then I might seriously consider going back to AMD.

However, after owning 2 different q6600s I still don't see the need for quad core...my next chip will most likely be an E7200 or E7300 for a magic 4ghz setup :D
 
Scougar said:
I seriously did not realise that. Changed my perception of the phenom a little! (I actually thought on first reading you meant @ 3.2ghz it's about the performance of a stocked clocked Q6600 (2.4Ghz) lol. Glad I re-read it!!!)

Matthew
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A lot of people don't realise it, either. They simply look at Superpi scores. Others find the ease of achieving massive overclocks on Core architecture more attractive compared to the relative effort required for Phenom.

Phenom is a great chip and the new ones (B3 revision) are on par with the Q6600. The new chipsets arriving for them have made them a competitor on the overclocking ladder, too. Sure, more effort is required, but some may say that it's worth it.
 
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mrthingyx said:
A lot of people don't realise it, either. They simply look at Superpi scores. Others find the ease of achieving massive overclocks on Core architecture more attractive compared to the relative effort required for Phenom.

Phenom is a great chip and the new ones (B3 revision) are on par with the Q6600. The new chipsets arriving for them have made them a competitor on the overclocking ladder, too. Sure, more effort is required, but some may say that it's worth it.
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theres new chipsets that overclocks the CPU isn't there?
 
Nothing 'overclocks' the CPU other than the user, but all AM2+ chipsets will allow for AMD Overdrive to be used, which is essentially dynamic, Windows-based overclocking and is quite useful.

The 790FX chipset is pretty good for overclocking, but it now seems that the Nvidia 780a chipset is bordering on being even better. Why? No idea, but it can even do the business with B2 PHenoms.

Another thing to bear in mind is that almost all of the first and second reviews of Phenom overclocking were based on a very 'Intel-centric' philosophy: decrease multiplier, increase FSB, stress test at 60oC for 8hrs and bob is your proverbial uncle. Phenom doesn't work like that at all and is very compluicated in comparison. Which is why a lot of sites thought {henoms in both B2 and B3 guise weren't very capable overclockers. It's taken some dedicated work from people around the world (most of whom seem to post on Xytremesystems) to reveal how good Phenom actually can be.
 
mrthingyx said:
Nothing 'overclocks' the CPU other than the user, but all AM2+ chipsets will allow for AMD Overdrive to be used, which is essentially dynamic, Windows-based overclocking and is quite useful.

The 790FX chipset is pretty good for overclocking, but it now seems that the Nvidia 780a chipset is bordering on being even better. Why? No idea, but it can even do the business with B2 PHenoms.

Another thing to bear in mind is that almost all of the first and second reviews of Phenom overclocking were based on a very 'Intel-centric' philosophy: decrease multiplier, increase FSB, stress test at 60oC for 8hrs and bob is your proverbial uncle. Phenom doesn't work like that at all and is very compluicated in comparison. Which is why a lot of sites thought {henoms in both B2 and B3 guise weren't very capable overclockers. It's taken some dedicated work from people around the world (most of whom seem to post on Xytremesystems) to reveal how good Phenom actually can be.
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Agreed i check XS quite a bit about amd
 
well im a former AMD user so i know overclocking them can be a bit tedious at times, had my X2 running at 3.2Ghz for ages so i know they can overclock :) phenoms are good processors mind, anyone who says otherwise is intel fanboy :p
 
gareth170 said:
9850BE overclock very well.. i agree the none BE phenoms are difficult to overclock. i had a 9500 which i got an overclock at 2.5ghz..
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if i go quad in the near future i am tempted to go back to AMD, full AMD, phenom, AMD chipset, AMD graphics :)
 
Gashman said:
if i go quad in the near future i am tempted to go back to AMD, full AMD, phenom, AMD chipset, AMD graphics :)
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Yeah pretty good but more money than a q6600, new q8200 replcing q6600 next month for same price which will be quicker.

Hell, I've had AMD rigs for 8 years but finally swapped a month ago. Didn't want to but AMD just not offering the same bang for buck. I hate to say that but true.
 
Greebo said:
Yeah pretty good but more money than a q6600, new q8200 replcing q6600 next month for same price which will be quicker.

Hell, I've had AMD rigs for 8 years but finally swapped a month ago. Didn't want to but AMD just not offering the same bang for buck. I hate to say that but true.
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even in the 'conroe is god' era AMD were still competative bang for buck, example being the E4300 which was about the same price as the AM2 4200+ X2, and the difference between the two was not even worth noting, so price/performance AMD are still competative, just intel overclock better but at stock theres little in it
 
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