Opteron 165 LCB9E 0704TPMW or CCBWE 0551

[Crashmaster07]

Out of the two opty 165 steppings above, does anyone know which one is the better one to get in terms of overclocking. Also which one runs coolest if possible as its going in a SN25P.

Cheers
Dan Chambers

 

[MoodyB]

http://www.xtremesystems.org/forums/showthread.php?t=96900

" AVOID if you want to hit 2.8ghz+:
CCBWE 0534SPMW
CCBWE 0543TPMW
CCBWE 0546MPMW
CCBWE 0551 (Any packing code) (2.7-2.75ghz 1.55v)
CCBWE 0602 (Any packing code)
CCBWE 0607 (Any packing code) (2.65ghz 1.55v) "

The LCB9E Toledo X2's appear to be doing around 2.7-2.9ghz with 1.4-1.45vcore, so that might be another option :

http://forums.overclockers.co.uk/showthread.php?t=17721885

 

[Crashmaster07]

Is there much difference in terms of performance from the cache difference between the X2 range and the opteron range?
Its going to be in a shuttle sn25p, so the higher multi on the 4200 maybe desirable.

Cheers for your help/ help on answering the above question!
Dan Chambers

 

[MoodyB]

The general understanding is the 2x1mb cache on the Opterons accounts for an extra 100-200mhz performance-wise against an X2.

The 2 LCBKE 0643TPMW X2 4200+'s in the thread I posted a link to are doing 2.8-2.9ghz with 1.35-1.4vcore. If that's the stepping that OcUK is selling atm, or if you can find them elsewhere, then they might be worth considering although their price just shot up - £117 now, was £92 last week

 

[Amonlym]

Note:

as near as make no difference, the 1mb opys and 1mb x2's are identical, the former are higher binned, so you will not need as much luck, but otherwise. they are the same. the 1mb x2's are the 4400 and the 4800. the 3800, 4200 and 4600 are all 2x512k. tho they can have the same cores as the 1mb chips, just with half disabled.

for what its worth, my LCB9E 4800+ runs very hot (lapped and under water 70c load both cores at 2.94ghz) but responds well to voltage, stock volts to 2.7ish, 1.4v to 2.8 1.425 = 2.85 1.475 = 2.9, 1.525 = 2.95.
I would debate the real world difference in cache size.. maybe worth 3-4% (un noticeable) but thats me.

Id say go for the LCB9E