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.



Source: MyDrivers.com

[Volkszorn88]

Awesome Processing Unit.

[Drugsh]

i wonder how much is the gpu clock?

[TheLostSwede]

Originally Posted by Drugsh

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]

Originally Posted by TheLostSwede

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]

Originally Posted by timmyisme22

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]

Originally Posted by timmyisme22

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]

Originally Posted by 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.

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]

Originally Posted by _JP_

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!

[Thefumigator]

Originally Posted by Static~Charge

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]

Originally Posted by 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.

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]

Originally Posted by 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.

Thumbs down..

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

Originally Posted by fullinfusion

2 volts Unreal!

Originally Posted by Rowsol

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.