Now with AM2 out and Conroe due in July, I think it's about time we started having a discussion and benches in terms of bandwidth for DDR2 modules. I've been searching around on the net and there hasn't been a properly collected DB of DDR2 overclocking.

Do share with us your results and screenies. Even if you're running it on P4

In order for a recognised database, please include links to CPU-Z's verification page for your rig and post screenshots of SiSoftware Sandra bandwidth test (Unbuffered)

Ranking will be done in terms of DRAM speeds obtained. Not processor clockspeeds or percentage of gain. However in the event of equal frequencies, I'd like a screenshot of bandwidth utilising preferably SiSoft's Sandra (Unbuffered)

1. pcmoddingmy: AMD 3000+ Orleans F2|DFI Infinity NF UltraII-M2|2 x OCZ 1GB PC2-8000 Titanium Alpha VX2@ 2.44v| DRAM: 540.8Mhz
2. Benny Lodewijk: E6600|Asus P5W DH Deluxe|2 x ADATA DDR2-800 512 (Elpida GE-E chips @ 2.4 volt) DRAM: 500Mhz
3. Soulfly: AMD 3000+ Orleans F2|BIOSTAR Tforce 550|1 x Corsair VS DDR2-667 (Elpida chip) @ 2.2v|DRAM: 450.4Mhz
4. irenic: Intel E6300 444x7 1.375vcore|Gigabyte GA-965P-DS4 |1024x2 Mushkin DDR2 800 with green heatspreader (dunno what chipset)
@ddr2 4-5-5-15 2.1v|DRAM: 444Mhz
5. Tone: P4 631 3Ghz|Abit IL8|2 x Micron 512mb DDR2 667Mhz| DRAM: 394Mhz


Some known DDR2 chip list....

Crucial
Ballistix DDR2 Pc2-5300 (2.2V) 667 @ 3-3-3-12 [Micron BT-3, B6-3]
Ballistix DDR2 Pc2-6400 (2.2V) 800 @ 4-4-4-12 [Micron BT-37E, B6-37E, B6-25F]
Ballistix DDR2 PC2-8000 (2.2V) 1000 @ 5-5-5-15 [Micron BT-3, B6-3]


Corsair
Corsair XMS2 Twin2x 4300C3/PRO 533 @ 3-3-3-8 [Elpida]
Corsair XMS2 Twin2x 5400C4 667 @ 4-4-4-12 [? ? ? ? ? ? ?]
Corsair XMS2 Twin2X 5400C4 Rev5.2 667 @ 4-4-4-12 [Micron D9DQW]
Corsair XMS2 Twin2X 5400C4 667 @ 4-4-4-12 [Nanya]
Corsair XMS2 Twin2X 5400UL 667 @ 3-3-2-8 [Micron D9DQT]
Corsair XMS2 Twin2X 6400C3 800 @ 3-4-3-9 [? ? ? ? ? ? ?]
Corsair XMS2 Twin2X 6400C5 800 @ 5-5-5-12 [? ? ? ? ? ? ?]
Corsair XMS2 Twin2X 8000UL 1000 @ 5-4-4-9 [Micron D9DQT]
Corsair XMS2 Twin2X 8500 1100 @ 5-5-5-15 [? ? ? ? ? ? ?]
Corsair XMS2 Twin2X 8500C5 1100 @ 5-5-5-15 [? ? ? ? ? ? ?]
Corsair XMS2 Twin2X 8500UL 1100 @ 5-5-5-15 [Micron D9GMH]


G.Skill
G.SKILL DDR2 F2-6400PHU2-2GBHZ (2.0V - 2.1V) 800 @ 4-4-4-12 [Micron D9GMH]
G.SKILL DDR2 F2-8000PHU1/2GBHX (2.2V - 2.3V) 1000 @ 4-4-4-5 [Micron D9GKX]


Kingston
Kingston Value RAM DDR2 PC2-6400 (1.8V) 800 @ 5-5-5-16 [Micron D9GKX]


Mushkin
Mushkin DDR2 EM2-6400 (1.8V - 2.1V) 800 @ 5-5-5-12 [Aeneon]
Mushkin DDR2 XP2-5300 (2.1V - 2.3V) 667 @ 3-3-3-10 [Elpida]
Mushkin DDR2 XP2-6400 (1.9V - 2.1V) 800 @ 4-3-3-10 [Micron D9GMH]
Mushkin DDR2 XP2-8000 REDLINE (2.2V - 2.3V) 1000 @ 4-5-4-11 [Micron D9GMH]


OCZ Technology
OCZ EB DDR2 PC2-4200 Platinum Rev.2 Limited Edition (2.0V) 533 @ 3-2-2-8 [Micron BT-37E]
OCZ EB DDR2 PC2-5400 Titanium (2.1V) 667 @ 4-2-2-8 [Micron BT-3]
OCZ EB DDR2 PC2-6400 Platinum (2.1V) 800 @ 4-3-3-8 [Micron BT-3]
OCZ EL DDR2 PC2-6400 Platinum XTC (2.1V) 800 @ 4-5-4-15 [? ? ? ? ? ? ?]
OCZ EL DDR2 PC2-8000 Platinum XTC (2.1V) 1000 @ 5-5-5-15 [? ? ? ? ? ? ?]
OCZ EL DDR2 PC2-8000 Platinum XTC Extreme Edition (2.1V) 1000 @ 4-5-4-15 [? ? ? ? ? ? ?]


Patriot
PATRIOT DDR2 5300LL (1.8V) 667 @ 4-4-4-12 [Elpida, Micron D9GMH]
PATRIOT DDR2 6400LL (2.1V) 800 @ 4-4-4-12 [Micron D9DQT]
PATRIOT DDR2 7200LL (2.3V) 900 @ 5-5-5-15 [? ? ? ? ? ? ?]
PATRIOT DDR2 8000LL (2.3V) 1000 @ 5-5-5-15 [Micron D9DQT]


Super Talent
SUPER TALENT DDR2 6400 800 @ 4-3-4-8 [Micron D9DQT, D9GKX]
SUPER TALENT DDR2 8000 1000 @ 5-5-5-15 [Micron D9DQT, D9GKX]


TeamGroup
Team Xtreem DDR2 PC2-5300 (2.0V - 2.2V) 667 @ 3-3-3-8 [Micron D9GMH]
Team Xtreem DDR2 PC2-6400 (2.0V - 2.2V) 800 @ 4-4-4-12 [Micron D9GMH]
Team Xtreem DDR2 PC2-8000 (2.1V - 2.3V) 1000 @ 5-5-5-15 [Micron D9GMH]

===============================================

Memory ICs manufactured by Micron:

D9GKX B6-25E
D9GMH B6-3
D9GCT B6-37E
D9DQT BT-3
D9DQW BT-37E
D9GMG BN-3
D9DCN CB-37E
D9DCL CB-3
D9CHM BP-37E
D9DCD CC-37E

1.BT - legendary fat body. Discontinued product. Can take very low latencies with high voltage.
2.B6 - first 80nm chips. usual OC 950MHz 4-4-4
3.BN - ~ equals to B6 but are used in 256MB sticks
4.СB and others - nothing special. Max OC ~800 4-4-4

Suffixes (binning levels):
-5 200 MHz 4-4-4
-5E 200 MHz 3-3-3
-37E 267 MHz 4-4-4
-3 333 MHz 5-5-5
-3E 333 MHz 4-4-4
-25 400 MHz 6-6-6
-25E 400 MHz 5-5-5

Source (http://forums.overclockers.ru/viewtopic.php?p=2893524#2893524)

This post has been edited by soulfly: Aug 25 2006, 08:34 PM

Timings and rated Mhz are actually divided in 2 for general reference to DDR. It'll be easier to look at it that way. The advantage DDR2 has over DDR is that the bandwidth has increased significantly if clock to clock (For example DDR 400 Vs. DDR2 800)

thanks for posting but I had a look at it before this. It's just a list of possibly clockable modules but we need a proper database of proven clocks like those currently available for DDR's (e.g. screenshots, settings and stuff) like tone has posted. I wanna start gathering an OC'ed database

and thanks tone

This post has been edited by almostthere: Jun 8 2006, 12:31 PM

True but with current limitations on chipsets, I'd wanna see benches on AM2 for bandwidth actually. TonyOCZ hit 7k unbuffered and 11.7k buffered in his Sandra benches already

Generally, no as DDR2 as per JEDEC specification works at a VDIMM of 1.8v wherelse DDR works at VDIMM of 2.6v. So in conclusion, DDR2 runs cooler comparably when OC'ed unless you plan to whack harder voltages then active cooling is recommended

hence my intention to start a DDR2 database. To get as many feedback possible about all available DDR2's prefereably by chip

In terms of bandwidth, yes actually. Just don't expect very high DDR speeds. The highest known so far is 250Mhz

Precisely if you're running 1:1 in terms of dividers. The added gain would come in terms of bandwidth as DDR2 will carry 4 bits of data per cycle compared to 2 bits on DDR

Come on laaa gang......don't be shy shy laaa with your DDR2 results.

Not 1337 la like this

added some data at the 1st post

On what rig laaa you're comparing dude?

So how? Mau include it in first?

Ok, will await then

My guess is Elpida's unless someone can prove it otherwise

All latest results posted. Check first page for details.

pcmoddingmy and soulfly, do provide also details such as mobo and VDIMM to allow better cross referrals

Fankew pcmm and soulfly. All updated. Now we're getting somewhere

Will consider that but I prefer to concentrate later on the bandwidth obtained as it's pretty neck-to-neck between the 2 platforms and is a better evaluation of performance when overclocked

Bagi spec's rig la. No point I see benches if I dunno what you're whacking

cepat2 lai2 can't wait to see what those babies can do since over at XS the benches are a bit too hard to believe

BTW updated the rankings

owh, I was at LYP the otehr day and I saw a few KVR's DDR2 533Mhz's which were using Micron chips. Might be tempting

This post has been edited by almostthere: Aug 15 2006, 07:08 PM

Yeah I saw those too for the DDR2 667Mhz sticks. all that I was talking about are of 1Gb density in case you guys didn't know

Yeah but with all KVR DDR2 667Mhz's being remarked, it's pretty hard to tell which from which unless someone can give a decent description of how each chip looks like

Sheesh, kinda makes this topic redundant already. I'd suggest this be closed. Your call since you're the mod

told you edi what...the question is you got the mobo and the bawls or not?

shawty is right about that. This is because of bank latencies and driving strength which are reduced which makes OC'ing highly populated RAM slots a harder endeavour

aku tido pon tal bole....kang charge consultation fees kang

EDIT: Wrong topic

Corrected, just got up writing this. RAM PCB those of higher layers have better cooling properties as it makes greater use of the PCB's surface area to dissipate heat since you cram less on the circuitry per layer. Besides that, like sempronic said, it's able to withstand higher VDIMM as the circuitry would have higher tolerance as well as greater stabillity to maintain those VDIMM's. JEDEC spec PCB's are only designed to withstand extreme conditions based on humidity and environent temps at very low voltages (DDR2 AFAIK is at 1.2v for testing purposes)

This post has been edited by almostthere: Jun 18 2007, 07:21 PM

AFAIK, PROMOS or Elpida UTT based chips. But sometimes you might get the lousier D9 binnings