Actually I haven't seen any single test about the 2x2GB Sammy... is there any around or all people bought 2x4GB?
Actually I haven't seen any single test about the 2x2GB Sammy... is there any around or all people bought 2x4GB?
pretty sure this thread is about the 4gb dimms
Single sided is considerably slower than double sided. Stick with the 2 x 4gb for that reason alone. Even if you got an extra 50-100mhz out of the single sided chips you still wouldnt overcome the bandwidth loss.
DDR3 really is no go with single sided sticks if youre looking for performance.
50-100 Mhz would overcome the bandwidth loss.Quote:
Originally Posted by PiLsY
Not what ive found...you need either a drop in trcd or 100-130mhz to get the same bandwidth and ive tried a fair few single sided sticks. BBSE was the only one it worked better for as I was able to drop trcd by 1 and gain 40mhz as well. Try it with superpi or pifast if you can. Actually single sided 2gb hynix sticks are even worse so as density goes up double sided could become even more important. As we've gone from DDR to DDR2 and now DDR3 the performance gap has got bigger between single sided and double and the timings/mhz gap has got smaller. Based on what I have seen I have no reason to believe they would perform any different to psc, hynix, bbse, hypers comparing single to double sided sticks.
Disclaimer - I have not tried the Samsung 2gb against the 4gb, nor have I tried every board/bios combo possible.
mine on a x79 with 1.55v
http://i1124.photobucket.com/albums/...re/samsung.jpg
Uhhh double sided performance is determined by interleaving...
A single - single sided stick is probably not enough banks to pull off interleaving.
Double sided does essentially ensure you can interleave a single stick.
There's also node interleaving too, but I never messed with that, none of the bios'es allow for adjustment that one either as far as I know.
It interleaves the access to the banks of mem.
Each bank is probably 2 chips I'm guessing, whatever the bit width of the chips are.. needing equ to 64bit per stick.
2 sticks, single sided, in dual chan, likely perform the exact same as the dual sidded in the same setup.
But it is possible maybe interleaving improves as you add more banks past what you need to get it to work in the 1st place.
Awesome, can u post a memTweakit shot please ?Quote:
Originally Posted by Shrekogre
Anyone know where to get these in Canada. Newegg.ca has them but they are OOS :(
i got one 1205 and one 1207,. i couldn't get another 1205 they only had newer or older batches :( i found a single ones that was 1205, and one that was 1207, should return 1207 and try another? They are single sticks, i haven't taken them out of the box yet.
sin - are you going to test them on your z77-UD5?
:)
Ok but it will take some time as rig is dismantledQuote:
Originally Posted by ugotd8
Is 1207 bad?Quote:
Originally Posted by sin0822
Quote:
Originally Posted by sin0822
I'm not sure why you are so concerned with that. I have 1209's and was able to hit 2133mhz on my P67. I'm betting they would do better with Z77.
This is the best I could do so far. 2133 @ 11-11-11-28-1T @ 1.4V. Could probably get better timings out of these sticks (many reporting CL10 @ 2133) but I think I'm limited by my lack of memory OC skills. ;-)
http://img845.imageshack.us/img845/9...111111t.th.jpg
1.55v will get you 9-11-11-28-1T 2133mhz in quad channel. You shouldnt need to touch anything except memory voltage.
However you should be able to get 10-11-11-28-1T 2400mhz @ 1.6v+ if you tweak your other voltages a bit.
Thanks for the tips. I tried 1.55 and 9-11-11-28 2133 and it's a no-go for me. I get hyper-pi errors. I tried tWCL 8 and tWCL 6 per the "CAS - 3" rule I read on techpowerup's review.Quote:
Originally Posted by PiLsY
I'm still more than pleased with these. 2133 @ 1.4V is awesome. Tighter timings don't mean much to the benchmarks I run (SPECapc for Lightwave). I need raw CPU speed and running my DIMMs at 1.4V (instead of the 1.65V the dominators needed) gives me a little more thermal headroom to move from 4.8Ghz on this 3930K to 4.9Ghz or possibly the magic 5! :-)
Yeah thats cool, just curious that you havent got more. Have you tried changing to the other 4 ram slots? Reds are usually the best.
Triple channel is also faster and will let you clock higher if you find the right 3 slots :rolleyes:
I just bought the 8GB kit from Microcenter.
Batch number is 1274.
http://i39.tinypic.com/16hrzps.jpg
http://i44.tinypic.com/992bo6.jpg
can easily do 2133 on 9-10-10-28-1T on 1.512V stable.
I just had to change the settings and voila.
The memory can give so much more.. I can feel it.
it's like it is saying "hold me... hold me...." :)
the only thing is I'm currently stuck with I3 2100 so no room to actually see how far it'll go, and the TP67B+ (Biostar) supports upto only 2133.
These will be fun on Ivy rigs, watch the crazy clocks then.
:)
got the same specs to run at 1.452V.
this is very stable - under heavy WCG load (plus GPU beta units that are currently on!).
This is amazing.
absolutely amazing. for real.
(too bad that the post office isn't as efficient as the weather service ^_^ )
http://i39.tinypic.com/htahll.jpg
i cant decide if i should get these or some hynix.Quote:
Originally Posted by aussie-revhead
Do we have a results thread like this for Hynix?
:)
hynix is worse... 40nm
I bought a pair of these 2x4, could not resist lol.