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

[btarunr]

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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[Volkszorn88]

Awesome Processing Unit.

 

[Drugsh]

i wonder how much is the gpu clock?

 

[TheLostSwede]

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...

 

[timmyisme22]

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.

 

[NC37]

Heh, I built a rig for a relative with that board.

 

[btarunr]

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]

DIMM cooling looks insane! I wish somebody produced superconductor based PCB and embedded superconductive vias in silicon wafers.

 

[_JP_]

Damn!
That's impressive.
I also didn't know those GeIL EVO Corsa RAMs could clock that high.
Those DIMMs were cheap here a while ago. Real cheap. Enhance version though, but still cheap.

 

[nonkX3]

oh how i love the asus background behind it

 

[leonard83]

Gigabyte A75-UD4H`s still the best in A75MBs

 

[Thefumigator]

pretty evil oc.

 

[badtaylorx]

really......a llano

who knew???

 

[ERazer]

damn thats awsome

 

[MikeMurphy]

2v is a lot of juice!

 

[ironwolf]

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]

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.

 

[happita]

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.

 

[Static~Charge]

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).

 

[Static~Charge]

I also didn't know those GeIL EVO Corsa RAMs could clock that high.

Apparently they can, with a sufficient application of liquid nitrogen.

 

[fullinfusion]

2 volts Unreal! :shadedshu

 

[Thefumigator]

Apparently they can, with a sufficient application of liquid nitrogen.

also dependent on how stable could the integrated memory controller be at that speed.

 

[Rowsol]

2v holy shit!!!

 

[faramir]

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.

 

[eidairaman1]

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 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.