Tuesday, January 13th 2009
Phenom II X4 at 6.30 GHz, Runs 3DMark-Stable
AMD finally seems to have put a realistic assessment of its processors, with its claims of the Phenom II X4 having "massive headroom" with its overclocking potential being validated once again, this time by Team Finland, at a CES overclocking event. Team Finland was able to overclock a Phenom II X4 940 processor at its highest stable clock speed of 6.30 GHz using extreme cooling. Earlier attempts to overclock the chip beyond the 6 GHz mark only yielded in test-beds that were able to POST, boot and display the clock speed using CPU-Z. This attempt however, was a benchmark-stable overclocking feat.
The bench consisted of a Phenom II X4 engineering sample, DFI LANParty Dark 790FXB-M2RS, OCZ DDR2-1066 memory, two Radeon HD 4870 X2 graphics cards in CrossfireX and Windows XP. The CPU cooling employed was liquid helium, which dropped the temperature to -242 degrees Celsius. To achieve a clock speed of 6.30 GHz, the processor's vCore was set at 1.84V, its bus speed at 280 MHz and a multiplier of 22.5 was set. The HyperTransport frequency multiplier was set at 8. The Radeon HD 4870 X2 accelerators were set at 800 MHz (core) and 950 MHz (memory). The machine was put through 3DMark05, where it ended with a world-record score of 45,474.
Source:
Plaza.fl
The bench consisted of a Phenom II X4 engineering sample, DFI LANParty Dark 790FXB-M2RS, OCZ DDR2-1066 memory, two Radeon HD 4870 X2 graphics cards in CrossfireX and Windows XP. The CPU cooling employed was liquid helium, which dropped the temperature to -242 degrees Celsius. To achieve a clock speed of 6.30 GHz, the processor's vCore was set at 1.84V, its bus speed at 280 MHz and a multiplier of 22.5 was set. The HyperTransport frequency multiplier was set at 8. The Radeon HD 4870 X2 accelerators were set at 800 MHz (core) and 950 MHz (memory). The machine was put through 3DMark05, where it ended with a world-record score of 45,474.
74 Comments on Phenom II X4 at 6.30 GHz, Runs 3DMark-Stable
All this means is that now AMD chips are once again pretty damn decent. The fact that they were able to run anything for a length of time at that extreme overclocked speed is amazing.
in fact they have gotten 3.7ghz on stock volts using a foxconn destroyer....
www.xtremesystems.org/Forums/showthread.php?t=214279
and they pushed it higher than they could using a foxconn 790GX mobo
www.xtremesystems.org/Forums/showthread.php?t=213690
unluckily the tester in this did not use DICE or LN2 on the 780a only the 790GX :(
780a has shown to be a better overclocker than 790FX in many cases. this was very true with B2 chips like the 9600BE being pushed to 3.6ghz something no 790 board could imagine
Let's hope that all of the PII chips can OC like that.
And all for a £240 chip compared to DDR 3 Ram, X58 Mobo, and a god expensive I7.
Well Done AMD.
And i think you have a good point, ACC is already built into the Phenom 2 so it shouldnt matter.
not to mention 780a which pushes over 400 ;)
i had enought nvidia for now, the last 3 boards i owned for am2 where nvidia 550, 570 and 590, the last 2 where asus boards with SHIT bios (missing/non-functional memory options needed for proper ram clocking)
the 550 board lasted me the longist but the chipset also ran alot hotter even with active cooling then this 770 board.
im sure the board could take higher buss, but the chip cant, and im not gonna push insain volts thru a chip just to get a few more mhz, its 100% stable at 3.3 1.39 volts, any higher and 1.66 volts isnt even enough to get 3.4 stable (maby if i had water or an xp120 and high flow fan)
6000+@3.3 with 6gb ram is pretty decent if you ask me, specly at the volts im using, i may even beable to lower the volts(gonna try later tonight i think since its 14hrs prime stable as it is :D )
intel
AMD's from the past
But neither of that matters because the Denebs I guess have ACC built into the processor. From what I have actually seen the SB600 boards actually OC a bit better.