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7850 from 5850...

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Joined
18 Feb 2011
Posts
1,103
Location
Dublin, Ireland
Yo guys,

I'm tempted by this 7850 as an upgrade from my Sapphire 5850.

Is there much performance gains? I'm not sure if I'll sell my 5850, as I'd probably find it hard to get some buyers back home (Ireland). If I could sell it, I'd take around £50 (I'm not advertising :P) for it so that the 7850 appears to be even cheaper for me.

I've got 4GB Ram and a 955 at stock speeds. Would my PC be bottlenecked with this card and CPU?

Any other suggestions for cards around that price range?

Thanks.
 
Most of the gains will be vram, which will be the difference between BF3 on ultra with 4XMSAA and not.

It'll nip at the heels of a 580 when pushed very hard, so yes, huge upgrade IMO.
 
Huge upgrade?.. Nice.

I see the 580s are around 50-60% higher in price. So I'm guessing when you say "nipping at the heels of a 580" that the 580 isn't 50-60% higher in performance? Perhaps within 10-15%?

Sounds like a great price to me.

Cheers.
 
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Here is a comparison between a 5850 & 7850 when running at the same clocks. If you are willing to overclock the 7850 it will absolutely trounce the 5850 and will match a 7870.
 
I probably would overclock the card, although I've never overclocked before but I reckon I can figure it out.

Is there anything I would have to look out for when OC'ing? Extra cooling or would the cooler on that card be fine?

Thanks for the replies.
 
As long as you have adequate case cooling the coolers on the 7850 are absolutely fine even for heavy overclocks.

Personally I would wait for this one, but then I am partial to how it looks :D

http://www.overclockers.co.uk/showproduct.php?prodid=GX-157-MS&groupid=701&catid=56&subcat=411

Bear in mind though, that cooler is mahoosive.

That looks cool. I see the core clock is 950mhz, whereas the HIS model is 860Mhz. There's at £35 in the difference, but is it worth the price difference?

Thanks for the link jeff. It looks like a hefty topic :P.
 
If the TFIV is as big as the TFIII then this is how big the card will be.

gpu-2.jpg


That's against a 470 with a Zalman cooler on. It's a huge cooler !

The TFIII version of the 7850 is £10 cheaper, but over a tenner I much prefer the colour of the cooler on the TFIV.

Ask OCUK when they're going to be available as IMO the £35 is well worth it for the cooler alone. Plus it's already a ways overclocked so even if you are no good at it that's a good clock speed to get.
 
I've put this on my VTX 7850

http://www.overclockers.co.uk/showproduct.php?prodid=HS-002-GD&groupid=701&catid=57&subcat=787

Unfortunately out of stock atm, but it works really well. At default speeds I was getting up to 70c-75c in Heaven and higher when playing Crysis2. With the Gelid, I don't go over 40c in Heaven and 45c in Crysis2. I've put a speed reducing adapter on the fans due to the noise made by them running flat out, and now I can't here them and the temps are the same as near as damn it. You also get heat sinks for the ram chips and some smaller ones for the voltage regulator modules, and you'll still have loads left over. The thermal pads to stick these sinks in place are good also, had no probs with them whatsoever.

Got an installation guide here:

http://forums.overclockers.co.uk/showthread.php?t=18389760......page 21, post no: 625
 
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The Gelid Icy Vision is an excellent cooler, got one on my 470 which runs nice and cool. I also control the fan speed through speedfan, nice and quiet.:D
 
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