Another HD 6870 for Crossfire or HD 7870?

FreedomEclipse · Mar 26, 2012

did you install CAP profiles??

marek100 · Mar 26, 2012

FreedomEclipse said:
did you install CAP profiles??

Yes i did and no help same or even worse results. That was first thing what i did after starting CF, insttal CAP Profiles, drop down menu use game pre-def. settings in cap menu .

INSTG8R · Mar 26, 2012

And to answer your question about the RAM it is mirrored so it is only 1GB total not 1+1=2GB

FreedomEclipse · Mar 26, 2012

Alright - did you unistall the old cap profiles before you install the new ones???

I have experienced really shoddy performance if i just install one CAP over the other.

INSTG8R · Mar 26, 2012

I was also thinking did you install 1 bridge or 2? If 1 perhaps try 2?

HossHuge · Mar 26, 2012

INSTG8R said:
I was also thinking did you install 1 bridge or 2? If 1 perhaps try 2?

It's hard to run two bridges when there is only room for one.....

marek100 · Mar 26, 2012

Ok guys i haven't unistall old CAP profile bcos i didn't have it install it since i was using single GPU config till last friday . Then on Fri. my new card arrive (Same as old one Sapphire HD 6970 Toxic)
So what i did is :
inserted the sec. card in to pci-e slot , connect bridge , power cables , start system, yup system have rec. and install driver for sec. card, then CAP profile install , restart, all good , in CCC i can see two cards and i can select CAP profile to game . when i do that all runs fine but performance its just damm crap , 30-50 FPS in BF3 even on metro map where i was getting 50-80 FPs with one card only. Strange isint it .

About the bridge : its only one not two in my cards, they are one way crossfire only not two way crossfire.so i did plug the bridge to only one bridge connector on both cards.

marek100 · Mar 26, 2012

HossHuge said:
It's hard to run two bridges when there is only room for one.....

yup i was typing ather replay since you say that. ;-) :toast:

INSTG8R · Mar 26, 2012

HossHuge said:
It's hard to run two bridges when there is only room for one.....

Right 6870's... :eek:

Aquinus · Mar 26, 2012

I'm happy with my 6870s in crossfire. It doesn't always work great, but it has supported everything I've tried on it so far. The 7970 would be faster but the 7870 most likely will not unless you over-clock it to the max. If you already have a 6870, it's not a bad upgrade for the price and the 6870 over-clocks pretty well on top of how well it scales.

eidairaman1 · Mar 26, 2012

Id say go for another 6870 less you wanna spend big bux on a 7990 when those appear

TUngsten · May 23, 2012

I've been thinking about the same CF vs. new card issue as the OP. My problem is that I would need a new PSU for CF (Corsair 650w and only 2 PCIE connectors) so I'm thinking a new 7970 may be best...

Aquinus · May 23, 2012

I've read that tri-fire using one regular 6870 and one 6870 X2 helps mitigate micro-stutter but doesn't result in a huge performance boost. Also not many games support 3-way crossfire. Honestly, I haven't run into any issues with my 6870s and it really is the cheaper option since you already have a 6870. Unless the 6870 is going into another rig it isn't worth it because you never recover that money when you resell your hardware. Two 6870s are also more powerful than one 6870, and the 6870s overclock pretty well as well. In the end, it is your money and some people really dislike micro-stutter even if there is only a little bit. So I would say if you go with one GPU and you don't want to deal with crossfire, you're going to be asking yourself this same question when the 8000-series comes out, so I would recommend either get one 6870 for crossfire, or spend significantly more and go with something more power like a GTX 670, 680, Radeon HD 7970 or 7950 but I definitely wouldn't lean that direction if money is a concern.

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System Name	Codename: Icarus Mk.VI
Processor	Intel 8600k@Stock -- pending tuning
Motherboard	Asus ROG Strixx Z370-F
Cooling	CPU: BeQuiet! Dark Rock Pro 4 {1xCorsair ML120 Pro\|5xML140 Pro}
Memory	32GB XPG Gammix D10 {2x16GB}
Video Card(s)	ASUS Dual Radeon™ RX 6700 XT OC Edition
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Display(s)	LG GP850-B
Case	Corsair 760T (White)
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Mouse	Logitech G900
Keyboard	Duckyshine Dead LED(s) III
Software	Windows 10 Pro
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System Name	Hellbox 5.1(same case new guts)
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Power Supply	Seasonic TX~’850 Platinum
Mouse	G502 Hero
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Another HD 6870 for Crossfire or HD 7870?

FreedomEclipse

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marek100

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INSTG8R

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FreedomEclipse

~Technological Technocrat~

INSTG8R

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HossHuge

marek100

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marek100

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INSTG8R

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Aquinus

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eidairaman1

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TUngsten

Aquinus

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