Dear sifu's I would really appreciate your help. I have done my research (google, lowyat), until I see stars   and dunno how else to decide.

I want to make a gaming pc using i5 2500k, msi z68 gen3 mobo and radeon 7850. I intend to brutally OC the cpu and gpu. But when it comes down to question of ram, I'm torn between buying a

single Corsair 8GB Vengeance 1600mhz CL9 (CMZ8GX3M2A1600C9)
OR
dual kit 4GB (2x2gb) 1600mhz.

The reason I even consider the singe 8GB card because someone selling it for rm180. But I cant afford another similar card to dual channel. So would it be more effective on a gaming performance perspective to get a single 8gb card or dual channel 2x2Gb card? Many thx in advance.

Can anyone also recommend other good 4GB (2 X 2gb) dual channel 1600mhz kit which is reasonably priced and can overclock well?

erm... comparing our benchmarks, although i do see difference in gaming performance after setting, seems 7cl timing doesnt mean absolute advantage over 9cl, i m thinking its your higher cpu speed? if tats the case then i wont feel so discouraged, cos the gains r so minimal(i know its juz benchmark results, which in reality, i wont experience the difference of 1.5ns latency, but... >"<)

i only started oc'ing my rams a year after i bought my pc, n was only running 733mhz@9cl, then overtime i tried tightening timings more or increasing the clocks. up till few months ago was running 880mhz@9-9-9-22-31-1t, 1.65v, not stable for long hrs operation. since then i've always like tighter timings so i tried lower clocks n timing n added volts again.

the photo, becos u went tru the trouble for it as well, i guess it'll hav to respect the request, but has to b tomorrow but peeping inside(sff case), i see kingston printed on the chip, n the kvr lable too
my cpu has probably got a bad core or something, it can boot at 3.9ghz, but it wont work stable at anything above 3.68ghz, not even with 1.45v, n i wont try any higher volt, so, sigh...

thnx for the link to proc oc, will check into it

actual shots


according to manuals info, they r the same modules like yours, mine is babg


my mobo has got 1866 oc feature, i think tis helped alot

 
*i went tru the oc list again n noticed something, can i know wat is the 2nd volt for?
*example : fatalynx | X6 1090T | asus sabertooth 990FX | 2 x 2GB ADATA G series DDR3-2000 CL9 @ 9-9-9-24 | 1540MHz | 4-7-5-18-28 1T | 1.63v | 1.262v | Dual Channel

thnx in advance for enlightening

thnx for clearing   my nb-cpu volt is 1.287

erm, i hav no idea whether those rams r relabeled o not, the info i hav, i got from my mobo manuals, those digital copies r exactly the same as my hard copy