Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > 4850 Overclocking?
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harmattan   06-20-2008 at 04:29:31 PM

Yes, another 48xx thread...

I have yet to see anyone's 4850 overclocking results yet. How far can these be pushed?

------------------------------ q9450(@3.6ghz) - Abit ix38 Quad GT
4GB G.Skill 8500 - 2X WD 640GB RAID 0 - 2X Sapphire 4870 X2 CrossfireX
Razer Barracuda AC-1/HP-1 Sound - HP LP3065 30"
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SpinachEater   06-20-2008 at 04:35:51 PM
- 0 +

Wurd on the street says there is a thermal barrier since they are on the hot side...another wurd says with good cooling they could OC quite well...

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WR2   06-20-2008 at 04:36:56 PM
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Check this Guru3D article on the current state of OC'ing the 4850
http://www.guru3d.com/article/amd- [...] ercolor/16

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harmattan   06-20-2008 at 04:59:50 PM
- 0 +

Looks like it runs hot, limiting the OC. Probably to lead people away from buying it instead of the 4870...

Surely, someone will come out with an after-market cooler.

------------------------------ q9450(@3.6ghz) - Abit ix38 Quad GT
4GB G.Skill 8500 - 2X WD 640GB RAID 0 - 2X Sapphire 4870 X2 CrossfireX
Razer Barracuda AC-1/HP-1 Sound - HP LP3065 30"
Vista Premium 64
Reply to harmattan
SpinachEater   06-20-2008 at 05:30:10 PM
- 0 +

Yeah, so far I have seen only the Zalman style HS as being an alternative to the reference design. Still...dual slot would be a lot better so you can get that heat out of the case. Ah, newegg has some reference designs up today. Hopefully the alternatives start rolling out soon.

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Bronze Graphics badge EXT64   06-20-2008 at 05:47:36 PM
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Yeah, the reference single slot doesn't seem too great. I'm going to try modding it some to see if I can make it decent. Still, it is copper and only needs to expel 110W of heat, so hopefully it won't be too bad. Mine will be in Monday and I'll see what I can do (for cooling only, I have no plans to OC yet as this card is more than enough for me).

------------------------------ Phenom II X4 940 BE 3.0GHz - 1.25V > GA-MA790GP-DS4H > XFX ATI 4850 1GB > 4GB OCZ Platinum 1066MHz 5-5-5-15-2T > PCP&C 610W
Athlon II X2 250 3.0GHz > GA-MA770T-UD3P > Sapphire ATI 4650 512MB DDR3 > 4GB OCZ Platinum 1600MHz@1066MHz > XP/Win7 Enter 64
 Reply to EXT64
SpinachEater   06-20-2008 at 05:58:29 PM
- 0 +

Uhhgg...it is so tempting to get one right now...must....wait for 4870....put credit card away... ATI needs an EVGA stepup program.

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spathotan   06-20-2008 at 06:06:42 PM
- 0 +

My 2 wont be in till Thursday. I got them off FX yesterday morning and got the FedEx Ground, its shipped from deep in CA and im in Virginia :(

Apparently it runs around 55c idle with the fan barely running, noise dosent bother me so ill have no reservations about putting the fans at 70% or so constantly. I did this with my wife's 9800GTX, it idles at 40c and never tops 60c, good enough for me.

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
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tonyn84   06-20-2008 at 06:07:30 PM
- 0 +

So tempted also, but I'm waiting for one to come with a dual slot cooler. Has anyone seen if HIS or Powercolor will make those like they did for the 3850?

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spathotan   06-20-2008 at 06:12:29 PM
- 0 +

I actually wish I waited a few weeks, and snagged Sapphire's Vapochill version if they made one. Or maybe I can buy just the cooler from Sapphire...hmmm...

------------------------------ http://valid.canardpc.com/cache/banner/547515.png
Intel Xeon X3370 @3.6ghz Under Enzotech Extreme-X,EVGA GTX 285 SC, 4GB Mushkin Ascent eVCI @ 1066mhz, Gigabyte P45 UD3P
 Reply to spathotan
jeep11   05-06-2009 at 11:01:21 PM
- 0 +

I have mine at 690 1180.

Reply to jeep11
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