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> ATI HD4850 Overclockers' United, welcome to the Darkside overclocking!!

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ben3003
post Jul 4 2008, 08:14 AM
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Seem like alot of ppl is having HD4850, i just make a thread to see how we OC the card. For me, i oc'ed the card to 690/1050 rock stable. Later we can see any sifu out there can teach how to Vmod or do better overclocking smile.gif


ATI HD4850 user:
1. ben3003- Sapphire HD4850 512MB DDR3@ 690/1050

HD4850 Bios Database:
http://www.techpowerup.com/vgabios/index.p...face=&memSize=0

What i've heard from them is MSI bios is better at overclocking due to the increased voltage. Grab 2008-06-05 16:52:00 one.

This post has been edited by ben3003: Jul 5 2008, 09:04 AM
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cyloh
post Jul 4 2008, 08:29 AM
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Whoa... the radeon 4800 series oc'ing rclxms.gif

this should get things going -> 4850 volt mod

Just yesterday I saw one happy dude with his gainward 4850 walking at lowyat. Then see him again buying
xigmatek battle axe for his gc.... notworthy.gif
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AMDAthlon
post Jul 4 2008, 08:31 AM
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It should be 4000 Series.If 4850 only,later other user will create HD4870,HD4650 and so on.
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ben3003
post Jul 4 2008, 08:38 AM
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This is solely for 4850 only, just like 8800gt got their own, 9600gt also. Becos different thing ma, later ppl confused. Anyway, user posted image
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khaidani
post Jul 4 2008, 08:41 AM
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i'm getting gecube 4850 tonite, what cooler r u using?
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ben3003
post Jul 4 2008, 08:55 AM
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I am using accelero s1+xigmatek 120mm fan. Very nice combination, full load wont exceed 55c.

Added on July 4, 2008, 8:56 am@700/1100user posted image

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coolice
post Jul 4 2008, 09:06 AM
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@ben3003
bro,do u mind to do a 3Dmark06 run at 700/1100 for me?
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ben3003
post Jul 4 2008, 09:20 AM
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oh, wait i need to install the software. Btw, is my score pretty good? I tried 690/1100 the GPU mark is 100 lower.
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coolice
post Jul 4 2008, 09:21 AM
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QUOTE(ben3003 @ Jul 4 2008, 09:20 AM)
oh, wait i need to install the software. Btw, is my score pretty good? I tried 690/1100 the GPU mark is 100 lower.
*


yeah..my score really odd..same clock speed as urs but gpu score 1k lower..zzz
got to try again next week and with cf..hopefully good
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ben3003
post Jul 4 2008, 09:23 AM
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Lolz, yalo, i saw ur gainward review, quite low. But i compare my score with guru3d, theirs also around 1k lower than me at stock.

Added on July 4, 2008, 9:23 amAnother thing is, 3dmark06 is quite low for 4850, becos the SM2.0 score super low.

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coolice
post Jul 4 2008, 09:30 AM
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QUOTE(ben3003 @ Jul 4 2008, 09:23 AM)
Lolz, yalo, i saw ur gainward review, quite low. But i compare my score with guru3d, theirs also around 1k lower than me at stock.

Added on July 4, 2008, 9:23 amAnother thing is, 3dmark06 is quite low for 4850, becos the SM2.0 score super low.
*


vista 64 and driver?
wat do u get for sm2 and sm3?
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ben3003
post Jul 4 2008, 09:36 AM
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I am on vista 32bit, ati 8.7 beta driver. The AMD tweaking tools not really good, it screw up with the clock speed becos ati powerplay will switch the whole card into 500/750, but u tweak it, u are tweaking the idle clock to that desired one.

Added on July 4, 2008, 9:53 amI am getting wat driver prob when i ran 3dmark06, but i dont have that prob with 3dmark vantage T.T, is it becos of 8.7beta?

Added on July 4, 2008, 10:04 amI cant run 3dmark06 at 700/1100, keep on say wat ati driver got error, so i ran it at 690/1100.
3dmark score: 11540
SM2.0: 5044
Sm3.0/HDR: 6113
CPU score: 2334


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Sanko
post Jul 4 2008, 03:49 PM
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ben, care to run everything stock just to compare. my score with coolice gap is too big. no idea what i'm doing wrongly. 3DMark06 only.

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ben3003
post Jul 4 2008, 03:57 PM
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Kk, i try.

Added on July 4, 2008, 3:57 pmNow my card 700/1100 scan artifact got artifact one, wah so unstable one this card.

Added on July 4, 2008, 4:10 pmi got 10914 mark only, sm2.0 4739, sm3.0/hdr 5717, CPU 2256. 3dmark depend on CPU one, ur CPU good, ur sm2.0 and sm3.0/hdr mark sure shoot up one. U wan see see 3dmark vantage.

Added on July 4, 2008, 4:32 pmStock vantage score:

P5821, GPU 6415, CPU 4556

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ah_khoo
post Jul 4 2008, 04:53 PM
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QUOTE(ben3003 @ Jul 4 2008, 03:57 PM)
Kk, i try.

Added on July 4, 2008, 3:57 pmNow my card 700/1100 scan artifact got artifact one, wah so unstable one this card.

Added on July 4, 2008, 4:10 pmi got 10914 mark only, sm2.0 4739, sm3.0/hdr 5717, CPU 2256. 3dmark depend on CPU one, ur CPU good, ur sm2.0 and sm3.0/hdr mark sure shoot up one. U wan see see 3dmark vantage.
*


ati never guarantee that 4850 can run 700/1100 for all 4850 rite? i think heat is d main problem for 4850, if u wanna oc, make sure u do ya homework 1st, in this case, cool d heat monster... whistling.gif

most stock cooler are known for slow fan speed, u gotta change it even ur not doin any overclocking as d default speed is not sufficient enough to cool d core. smile.gif

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ben3003
post Jul 4 2008, 05:10 PM
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Lol'ed at ur statement, i am running with accelero s1, the max i can reach when LOAD 3dmark vantage is 48c.
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Silverfire
post Jul 4 2008, 05:18 PM
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How many stream processors does HD4850 have?
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ah_khoo
post Jul 4 2008, 05:24 PM
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QUOTE(ben3003 @ Jul 4 2008, 05:10 PM)
Lol'ed at ur statement, i am running with accelero s1, the max i can reach when LOAD 3dmark vantage is 48c.
*


my bad, didn't see that earlier. doh.gif

if that's d case it's volt mod time for u if ur aimin for higher clock. smile.gif

This post has been edited by ah_khoo: Jul 4 2008, 05:26 PM
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ben3003
post Jul 4 2008, 05:56 PM
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it's ok smile.gif, Artifact problem can be solved by tune up the voltage?

Added on July 4, 2008, 6:02 pm@Silverfire,

It has 800sp AFAIK while 3870 has only 320sp.

This post has been edited by ben3003: Jul 4 2008, 06:02 PM
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pikacu
post Jul 4 2008, 06:03 PM
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OMG D:
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QUOTE(Silverfire @ Jul 4 2008, 05:18 PM)
How many stream processors does HD4850 have?
*


800SP
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