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AMD A8-3870K Cracks 6 GHz with All Cores Enabled

btarunr

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Overclocker "Christian Ney" of the HWBOT community claims to have cracked the 6 GHz clock speed mark with an AMD A8-3870K APU, with all four of its cores enabled. The feat consisted of a clock speed of 6067.7 MHz achieved using a base clock of 258.2 MHz and multiplier of 47.0x. The memory was clocked at 3505 MHz, just 95 MHz short of a world-record. The chip was put through a scorching core voltage of 2V. Supporting components included GIGABYTE A75-UD4H motherboard, and GeIL EVO Corsa DDR3 memory. The setup was cooled sub-zero. CPU-Z Validator rejected this submission, probably because like us, it finds 2V vCore and 258.2 MHz base clock unreal for Llano, since it uses a common 100 MHz clock domain for BClk and PCIe.



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Awesome Processing Unit.
 

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i wonder how much is the gpu clock?
 

TheLostSwede

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i wonder how much is the gpu clock?

If you look at the second picture you'll see that they're using a discrete card...
 
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If you look at the second picture you'll see that they're using a discrete card...

It's an APU so it's still a fair question (even with the discrete). Anyone know if they disabled it to attain this clock?


I'd prefer to see a high CPU/GPU clock and test it out with the sub-zero cooling. Would be much more awesome to see the result.
 
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Heh, I built a rig for a relative with that board.
 

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It's an APU so it's still a fair question (even with the discrete). Anyone know if they disabled it to attain this clock?

For APU's embedded GPU and a discrete GPU to work in tandem, the display will be plugged to the motherboard, not the discrete graphics card (as pictured). So the embedded GPU is likely not enabled.
 

R_1

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DIMM cooling looks insane! :rockout: I wish somebody produced superconductor based PCB and embedded superconductive vias in silicon wafers.
 
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:eek:
Damn!
That's impressive.
I also didn't know those GeIL EVO Corsa RAMs could clock that high. :wtf:
Those DIMMs were cheap here a while ago. Real cheap. Enhance version though, but still cheap.
 

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pretty evil oc.
 
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really......a llano

who knew??? :rockout:
 
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damn thats awsome
 
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Finally, all cores enabled. That's what kind of good stuff I was hoping we would see, none of this one or two core action crap.
 

cadaveca

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It's an APU so it's still a fair question (even with the discrete). Anyone know if they disabled it to attain this clock?


I'd prefer to see a high CPU/GPU clock and test it out with the sub-zero cooling. Would be much more awesome to see the result.

Yes, enabling the IGP portion of the APUs does seem to affect memory/core clocking.
 
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This is pointless. Not even us enthusiasts use LN2, dry ice, or whatever other extreme to cool our parts. That's saved for people looking to break records. 99.9% of us use air/watercooling...and some MAYBE phase-change.
 
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This is pointless. Not even us enthusiasts use LN2, dry ice, or whatever other extreme to cool our parts. That's saved for people looking to break records. 99.9% of us use air/watercooling...and some MAYBE phase-change.

It wasn't intended to be a practical application, just a demonstration of maximum clock speed (like comparing a Corvette and a nitromethane dragster).
 
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I also didn't know those GeIL EVO Corsa RAMs could clock that high. :wtf:

Apparently they can, with a sufficient application of liquid nitrogen. :)
 
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Apparently they can, with a sufficient application of liquid nitrogen. :)
also dependent on how stable could the integrated memory controller be at that speed.
 
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2v holy shit!!!
 

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Finally, all cores enabled. That's what kind of good stuff I was hoping we would see, none of this one or two core action crap.

My sentiment as well. Those crappy FX "records" mean very little - this is an actual record. It also shows that Athlon II architecture wasn't nearly as bad frequency-wise, there was hardly any need to go for extra-long pipeline in new architecture.
 

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This is pointless. Not even us enthusiasts use LN2, dry ice, or whatever other extreme to cool our parts. That's saved for people looking to break records. 99.9% of us use air/watercooling...and some MAYBE phase-change.

Thumbs down..

This is a record actually considering this is an APU with All cores operating at 6 ghz each.

2 volts :laugh: Unreal! :shadedshu

2v holy shit!!!

I Dont see what the problem is when an Athlon XP took 1.8-2.0 VCore just to reach 2.6-3.0GHz

AMDs love the voltage.
 
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