AMD Spi1M sub-11s closing: 11.140s with DDR3

[Sampsa]

Overclockers (Team Finland):

SF3D & Sampsa with support of macci & kamu

Test setup:

AMD Phenom II X4 AM3 engineering sample
Asus M4A79-T Deluxe (790FX + SB750)
2 GB Corsair DDR3-1800
Asus ATI Radeon HD 4870 X2
Corsair HX1000W
Kingpin F1 EE + LN2 cooling
Win XP + SP3

We did a quick Super Pi 1M WR in XP @ 6144 MHz. DDR3 doesn't seem to help much in this single threaded almost 15 years old benchmark. We tested that last core (#3) could overclock highest so we used that with affinity setting. CPU-Z shows core #0 clock speed:



Sub 11s seems to require ~6,2 GHz with our current test setup & efficiency. 6,5 GHz for Sub 10 with liquid helium?

[Sampsa]

Doh, wrong category. Some one please move to Xtreme Overclocking: http://www.xtremesystems.org/forums/...splay.php?f=56

[Zeus]

A pity this platform isn't taking advantage of the extra bandwidth DDR3 gives, at least not in Spi, how about 3d marks?

This one with DDR2 isn't far off: http://www.oohashi.jp/c-board/file/1...Ph2-6165.2.png

Nice timings for 853MHz by the way, did you have more dividers available to run 900+ on the mem?

~950 7-6-5 might give a little better result perhaps even though it's doubtfull.

Do you think that cpu has something left to go for sub 11?

[gondezz]

Sampsa, in your picture CnQ was active, right?

[Sampsa]

Sampsa, in your picture CnQ was active, right?

No, but like explained before CPU-Z is showing clock speed of core #0.

You can adjust each core's clock speed separately with AMD OverDrive program and use the best one for superpi with affinity setting. We used core #3 which was operating @ 6144 MHz.

[Sampsa]

Do you think that cpu has something left to go for sub 11?

CPU has it, it's matter of cooling

[gondezz]

Ahh, I see

Keep pushing Any 3D benchs? Looking forward you to beat Fugger's 975 3D05

[Sampsa]

Ahh, I see

Keep pushing Any 3D benchs? Looking forward you to beat Fugger's 975 3D05

Check Xtreme 3D Team section:

Is AMD Phenom II X4 + DDR3 capable to break current 3DM06 WR?
http://www.xtremesystems.org/forums/...d.php?t=217279

Other OC-session results:
http://www.xtremesystems.org/forums/...07#post3638407

[gondezz]

[massman]

Hm, I had expected a 11.0xx run . Any backups left?

In any case, nice to see AMD's got DDR3 all working out nicely

[Sampsa]

Hm, I had expected a 11.0xx run . Any backups left?

In any case, nice to see AMD's got DDR3 all working out nicely

Backups don't belong to Team Finland's policy :P

[Bullet92]

I also expected 11.0xx s run when you said that you're close to sub11s result yesterday. But this is also very nice result.
The memory clocks great

6,5 GHz for Sub 10 with liquid helium?

I don't think so but it's worth to try

[SF3D]

Yuo all should have sen how we benched Sp1M on Friday.. We had only really small amount of LN2 left and we did everything as fast as possible.. And fast it was

If we would have interest to use 20L of LN2 for Spi 1M or pifast only, scores would be different. I have one CPU which can do 6.2GHz+ runs, but I forgot to take it with me to the event in Sampsas place.

These CPU's does shine in 3Dmarks, so for me this is not the most interesting thing. I like to see your results, there is more fun in it.

[Spacemaster]

Great results

[massman]

If we would have interest to use 20L of LN2 for Spi 1M or pifast only, scores would be different. I have one CPU which can do 6.2GHz+ runs, but I forgot to take it with me to the event in Sampsas place.

I really hope you'll give the Pifast a shot one of these days: DDR3 should be boosting the Pifast score quite a bit (under 18s)

[Foamy]

lol how ironic is this, in the past nobody would even think about considering buying and amd cpu so they could get it under ln2...now even LN2 is to soft for it..

Impressive results guys!! I like

[[XC] Oj101]

Nice going, now bring on the AM3

[EnJoY]

Awesome stuff.

[ZoLKoRn]

Nice work Sampsa well what voltage for NB and Memory on it ?

Thanks

[F.O.G.N.A.]

Impressive work with AMD, congrats

[FlanK3r]

congrat. sampsa, i hope in next weeks under 11s

[Hyperhorn]

Awesome result!

6,5 GHz for Sub 10 with liquid helium?

I said this after Phenom II launch, but meanwhile I'm highly sceptical.
Sub 11 @LN2 is possible, but DDR3 + 1M isn't the perfect couple.

[kyosen]

Nice kicking start, Sampsa/SF3D

You've exceeded 0.001s than me again...I got 14.141s last Sunday
My guess is 6.25G~ for SP1M U11 with Deneb...
BTW, I also tried 3DMark05, and reached 40075 @5.5G

No, but like explained before CPU-Z is showing clock speed of core #0.

Try to click right button of mouse anywhere within CPU-Z window.
You'll see core# selection popup

[Throwed]

Well, ......Damn.

[Sampsa]

Nice kicking start, Sampsa/SF3D

You've exceeded 0.001s than me again...I got 14.141s last Sunday
My guess is 6.25G~ for SP1M U11 with Deneb...
BTW, I also tried 3DMark05, and reached 40075 @5.5G

Try to click right button of mouse anywhere within CPU-Z window.
You'll see core# selection popup

Thank you kyosen, sorry about 0,001s (AGAIN!) I hope our result will push you to test Phenom II even harder! Nice start in 05!