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Sell my 5870....Buy a 5970 ?
http://www.wsgf.org/phpBB3/viewtopic.php?f=66&t=19947		 Page 2 of 3
Author:  suiken_2mieu [ 10 Jun 2010, 04:56 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
[quote][quote]There are definitely advantages to the 5970- there are a few reviews out there that compare, and you'll def see a gain in FPS with the upgrade...

BUT- I am in the process of selling my 5970 because I am going with 2 5870 2GBs, as the added memory comes in handy at the extreme Eyefinity resolutions we are running. Had you considered just adding a 2nd 5870 in Xfire? That would be my move (and faster than a single 5970...) 8)


I agree, I have to say, the extra ram does keep the hiccups at bay, You may want to get two toxic 5870s that have 2GB of vram each.
When crossfiring cards only 1 set of vram is used so you don't get 4GB you just get 2GB :(

So if the 5970 is at 850/1200 and the 5870s are at 850/1200 they'll preform exactly the same :shock:
No true, Even with the Clocks the same, getting 2 GB with 2 5870 2GB cards in Crossfire should perform better than a 5970 2GB (which will give you 1 GB VRAM in Crossfire) when you have a game that uses more than a 1GB of VRAM. It should also help when using higher amounts of Anti-Aliasing and give you a smoother experience over all.
Author:  CheeWeez777 [ 10 Jun 2010, 05:06 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
No true, Even with the Clocks the same, getting 2 GB with 2 5870 2GB cards in Crossfire should perform better than a 5970 2GB (which will give you 1 GB VRAM in Crossfire) when you have a game that uses more than a 1GB of VRAM. It should also help when using higher amounts of Anti-Aliasing and give you a smoother experience over all.


Thanks- I was hoping someone would point that out. :cheers
Author:  r3v3nant [ 13 Jun 2010, 05:34 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
I am in the same boat.. but I also hear very mixed things about crossfire + eyefinity + vsync also... and I need my vsync.. and the dreaded stuttering issue.. I'm thinking about picking up a pair of the 2GB asus 5870s and selling my 1gb 5870... I think that extra memory will come in handy running crossfire + eyefinity.. but it's a lot to spend to introduce new headaches to an otherwise very solid running system.. just need a little more GPU horse power though.. decisions decisions..
Author:  Drex [ 13 Jun 2010, 13:37 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
I am in the same boat.. but I also hear very mixed things about crossfire + eyefinity + vsync also... and I need my vsync.. and the dreaded stuttering issue.. I'm thinking about picking up a pair of the 2GB asus 5870s and selling my 1gb 5870... I think that extra memory will come in handy running crossfire + eyefinity.. but it's a lot to spend to introduce new headaches to an otherwise very solid running system.. just need a little more GPU horse power though.. decisions decisions..


Well,in the end,i plumped for a 5970........

Although my motherboard has 2 x PciE slots,only 1 was x16,the other was x4,and i didnt want to muck around with
putting another motherboard in for crossfire.

And like yourself,i just needed a bit more grunt on the GPU side of things for triple screen gaming.

Although not as fast as 2 x 5870,should be better for noise and heat.....
Author:  thales100 [ 13 Jun 2010, 14:10 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
Although my motherboard has 2 x PciE slots,only 1 was x16,the other was x4


The "drop" in performance would be like only 1 - 2 %.
Author:  Delphium [ 13 Jun 2010, 14:27 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
[quote] Although my motherboard has 2 x PciE slots,only 1 was x16,the other was x4


The "drop" in performance would be like only 1 - 2 %.

This +1
Also here is a review and benchmark of running a 5870 at 1x, 4x, 8x, and 16x pci-e lanes :)
Author:  CheeWeez777 [ 13 Jun 2010, 16:37 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
I am in the same boat.. but I also hear very mixed things about crossfire + eyefinity + vsync also... and I need my vsync.. and the dreaded stuttering issue.. I'm thinking about picking up a pair of the 2GB asus 5870s and selling my 1gb 5870... I think that extra memory will come in handy running crossfire + eyefinity.. but it's a lot to spend to introduce new headaches to an otherwise very solid running system.. just need a little more GPU horse power though.. decisions decisions..


Well I just finished installing my 5970 "replacements"... 2 ASUS Matrix Platinum 2GB 5870s.

So far, very pleased. I'll be benching the next few days, as well as tweaking to see how much I can squeeze out of these suckers. (So far, I am hitting about 990 MHZ on core- temps are hovering JUST under 80C. Once I have core established, I'll get to memory).

I'll get some comparisons up to my 5970 once I have enough benches together.

ONLY negative is what was mentioned about noise and heat- they are LOUD when the fans are jacked, and without 80%+ fan speed, temps can quickly get to the high 80s, which I do not like.

Also, it may be placebo, but Bad Company 2 just feels "smoother". It seemed to "stutter" on my 5970, whereas on these, it is smooth as silk.

More to come! Stay tuned... :rockout
Author:  Drex [ 13 Jun 2010, 18:45 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
[quote] Although my motherboard has 2 x PciE slots,only 1 was x16,the other was x4


The "drop" in performance would be like only 1 - 2 %.

Is that all !

hmmmm......didnt realise the margin was that insignifcant.

How much quicker in percentage terms would you say 2 x 5870 are quicker than 1 x 5970 ?
Author:  Phoenixdancer [ 14 Jun 2010, 11:48 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
It depends on where the 5970 is clocked at.

if the 5970 is at 5870 speeds there is hardly any diffrence.

keep the 5970 and get a 5850 for tri-Fire! :P
Author:  r3v3nant [ 14 Jun 2010, 20:20 ]
Post subject:  Re: Sell my 5870....Buy a 5970 ?
Nice.. I am looking forward to your results.

the other consideration I have is my gigabyte x58 mobo will go into 8x 8x 16x 4x mode because I would have 4x pci-e devices installed (raid card 4x, sound card 1x, and then two video cards) so I was thinking a solo 5970 might be the best fit for me... but I am reading the 5870 does very well on an 8x pci-e 2.0 interface... but with one in an 16x slot in 8x mode, and one in a 16x slot in 16x mode not sure if that will make some stuttering or something...


Well I just finished installing my 5970 "replacements"... 2 ASUS Matrix Platinum 2GB 5870s.

So far, very pleased. I'll be benching the next few days, as well as tweaking to see how much I can squeeze out of these suckers. (So far, I am hitting about 990 MHZ on core- temps are hovering JUST under 80C. Once I have core established, I'll get to memory).

I'll get some comparisons up to my 5970 once I have enough benches together.

ONLY negative is what was mentioned about noise and heat- they are LOUD when the fans are jacked, and without 80%+ fan speed, temps can quickly get to the high 80s, which I do not like.

Also, it may be placebo, but Bad Company 2 just feels "smoother". It seemed to "stutter" on my 5970, whereas on these, it is smooth as silk.

More to come! Stay tuned... :rockout
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