Sign in with
Sign up | Sign in
Your question
Solved

OC'ed 5850 & OC'ed 5870

Last response: in Overclocking
Share
July 2, 2010 4:23:13 PM

So what is the maximum OC of both cards? The usual max. OC people achieve?
I can't find a review wherein both cards in max. OC are being tested face to face..
Also, what could be the temperature by that OC range?

I'm opt to buy the MSI 5850 Twin Frozr II.. but I'm open if someone can convince
me to get the 5870 (reference).. They said that 5870 is still higher due to the shader?
and the other spec. I can't remember :pt1cable: 
Also, I read a review wherein 5870 really shines in eyefinity setup (yes, I'll do eyefinity
after a couple of months or so)

Here's the review: ]http://www.hardocp.com/article/2010/01/05/amds_ati_radeon_eyefinity_performance_review/5]

By the way, I currently have 23" Samsung 2333HD HDTV as my monitor..
Will by a couple more 23" with a thinner border if I got the budget for it..

More about : 5850 5870

Best solution

July 8, 2010 6:59:54 PM

1. Most will OC to the limit ATI Overdrive lets you set. If you wan absolute max, you'll have to use non approved software.

2. Obviously a 5870 will perform better than any 5850. A 5850 is a 5807 with 2 SMID's disabled, effectively knocking out 8 texture units and 160 stream processors. A head to head comparison would be like comparing whether a 300 HP Porsche or the same Porsche, but with a 400hp engine is faster.

3. Temp depends on HSF on GPU, case ventilation, ambient and buncha other stuff.

Share
a c 125 U Graphics card
a c 100 K Overclocking
July 8, 2010 7:59:15 PM

Not sure about 5870, but 5850s on stock volts can often reach 850 core, 1200 mem. You can add more voltage, lots of people can acheive 1000 core. My highest OC was 980 core at 1.225V, currently at 960 with 1.15V. Stock voltage of 1.08V I got up to 875.
Memory voltage can't really be changed so you can only get so much. Some people have posted with 1250 even 1300 tops memory on their 5850s. I don't know about that tho. I've had slight issues with freezing at 1210 and lately at 1200 (Cryostasis and Penumbra). Have my GPUs at 960/1190 now, hoping they'll be more stable.
m
0
l
Related resources
a b U Graphics card
a b K Overclocking
July 9, 2010 3:17:59 AM

wolfram23 said:
Not sure about 5870, but 5850s on stock volts can often reach 850 core, 1200 mem. You can add more voltage, lots of people can acheive 1000 core. My highest OC was 980 core at 1.225V, currently at 960 with 1.15V. Stock voltage of 1.08V I got up to 875.
Memory voltage can't really be changed so you can only get so much. Some people have posted with 1250 even 1300 tops memory on their 5850s. I don't know about that tho. I've had slight issues with freezing at 1210 and lately at 1200 (Cryostasis and Penumbra). Have my GPUs at 960/1190 now, hoping they'll be more stable.


cant push the mem any higher because its MAXED OUT :o 



m
0
l
July 13, 2010 4:38:39 AM

This is as high as mine went :( 

m
0
l
a b U Graphics card
a b K Overclocking
July 13, 2010 2:47:00 PM

^^crank you fan to 100% when you test your GPU for max overclock. The higher the temp, the most likely it will crash/top out. In order for me to get 1025/1300 the fan needs to be at 100% and my room temp at around 72F or lower.
m
0
l
August 19, 2010 10:30:08 AM



Stock voltage XFX HD 5850 after 5 mins of furmark it doesn't even go over 70C, my room is around 22C since i have a heater on. its in an antec 902 without the side fan, all fans set on low except the top 200mm one which is on high. I think it could probably even hit 1200 mem clock on stock volts
m
0
l
a b U Graphics card
a b K Overclocking
August 19, 2010 2:45:32 PM

itouchedyou said:
http://i787.photobucket.com/albums/yy156/iTouchedYou/FurMark.png?t=1282213628

Stock voltage XFX HD 5850 after 5 mins of furmark it doesn't even go over 70C, my room is around 22C since i have a heater on. its in an antec 902 without the side fan, all fans set on low except the top 200mm one which is on high. I think it could probably even hit 1200 mem clock on stock volts


why was your fan capped at 50%, you and hperez need to create a fan curve to keep those cards under
70c at all times, if your fan can keep it under 60c then don't hesitate, the cooler the better.

example, stock volts :



that was just playing Dirt2 for about an hour and my room temp was at a whopping 80F.
m
0
l
August 19, 2010 9:49:19 PM

OvrClkr said:
why was your fan capped at 50%, you and hperez need to create a fan curve to keep those cards under
70c at all times, if your fan can keep it under 60c then don't hesitate, the cooler the better.

example, stock volts :

http://i683.photobucket.com/albums/vv199/OvrClkr/dirt2_850_1150.png

that was just playing Dirt2 for about an hour and my room temp was at a whopping 80F.


70C at 100% for 5 minutes is already more than good enough for me. for some reason during that test my fan curve wasn't enabled. Its normally 40% for 0-50C, linear increase to 60% between 50-80C, and once it hits 90C I have it at 80% but it's never even come close to that.

The fan may be quiet, but at 74% its pretty loud...
m
0
l
a b U Graphics card
a b K Overclocking
August 19, 2010 9:59:19 PM

itouchedyou said:
70C at 100% for 5 minutes is already more than good enough for me. for some reason during that test my fan curve wasn't enabled. Its normally 40% for 0-50C, linear increase to 60% between 50-80C, and once it hits 90C I have it at 80% but it's never even come close to that.

The fan may be quiet, but at 74% its pretty loud...


I find it hard understand a user when he says that 75% is loud. Of course with the volume at 0% it will be audible but normally the volume surpasses any noise coming from the PC. When watching movies or browsing the net the fan should be quite silent since the GPU is not being stressed at all.

I guess I am one of the few that likes to crank up the volume while playing games regardless if im using my phones or 5.1 surround. I cannot hear anything coming from the PC unless I hit "mute" :na: 
m
0
l
a b U Graphics card
a b K Overclocking
August 20, 2010 2:48:31 AM

Well like the above, i was able to hit 1000/1205 just not stable as i didn't want to really push my cards temps. I got 950/1205 on 1.16v and because of temps and dBa i didn't want to really push my card any further until i got better cooling. But if you don't really care about dBa the 5850 can be pushed very far, usually to 1000/1300. In your case I'd get CF 5850 because even at my 950/1205 clocks the performance is the equivalent to a stock 5870, also once you CF you save some cash and be able to run 2 or 3 monitors fine i'm sure in eyefinity.
m
0
l
August 29, 2010 5:56:37 PM

Hello,
I have a Sapphire 5850 Vapor X which is factory OCed to 735/1050. If I open MSI afterburner or ATI overdrive it won't let me set anything higher.

Is there a way to unlock this ?
m
0
l
a b U Graphics card
a b K Overclocking
August 29, 2010 9:21:37 PM

[ATIADLHAL]
EnableUnofficialOverclocking = 0

that's what stock MSI Afterburner says in the MSIAfterburner.cfg script, open it with notepad and go into the script and change 0 to 1 and all should be good.

If you can't save it's because you don't have the permisions so you'll have to right click and change permissions so that you can edit and save the changes.
m
0
l
a b U Graphics card
a b K Overclocking
August 29, 2010 10:37:20 PM

The vapor-x does not unlock the voltage by editing the .cfg file. To unlock the voltage he needs to flash the bios or do a pencil mod. To be honest i wouldn't even bother, if the card is bricked in the process you will be out by 300.00$+. Tex should be able to at least get 875/1200 on stock voltage. The vapor-x series can overclock well at stock voltage, you just need to play with the clocks till you find your "sweet spot".
m
0
l
a b U Graphics card
a b K Overclocking
August 30, 2010 1:43:24 AM

Well you don't need always up voltage, I just ment that by enable unofficialoverclocking he could still overclock even the core clock and mem clock.
m
0
l
August 30, 2010 5:59:12 PM

aznshinobi said:
[ATIADLHAL]
EnableUnofficialOverclocking = 0

cool, that helped.



OvrClkr said:
Tex should be able to at least get 875/1200 on stock voltage.


I will try those values.

Thanks
m
0
l
August 30, 2010 6:41:35 PM

so I get 2000 more 3DMark 06 points ;)  My score is now 19000.




m
0
l
September 10, 2010 5:38:21 PM

Best answer selected by robinforum.
m
0
l
!