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Can I use two graphic cards?

Last response: in Graphics & Displays
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August 25, 2013 4:22:36 PM

I bought a pc a month ago:

AMD FX-6100 3.3GHz Six Core Bulldozer Processor
8GB DDR3 1333Mhz Ram
1TB Hard Drive Storage
AMD Radeon HD 6670 2GB HDMI Graphics Card
HDMI 1080p, USB 3.0

I have played bf3 and I am getting 30-40fps on low settings. So after some research i found out out its down to the graphics card? So I'm wondering if i can buy a sapphire 5670 and use it with my 6670 is that possible?

PLEASE HELP REALLY DESPERATE!!!

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a c 212 U Graphics card
August 25, 2013 4:58:03 PM

Will your MoBo handle two cards ?

And you'd want 2 of the same card
August 26, 2013 2:52:06 PM

JackNaylorPE said:
Will your MoBo handle two cards ?

And you'd want 2 of the same card


How would i check if it can? its a GIGABYTE motherboard and does it have to be two of he same? or is it worth just upgrading to a better one than two?

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a c 131 U Graphics card
August 27, 2013 1:53:52 PM

Impossible to say without knowing exactly which motherboard you have.

-Wolf sends
a c 109 U Graphics card
August 27, 2013 2:09:19 PM

Matt2298 said:
I bought a pc a month ago:

AMD FX-6100 3.3GHz Six Core Bulldozer Processor
8GB DDR3 1333Mhz Ram
1TB Hard Drive Storage
AMD Radeon HD 6670 2GB HDMI Graphics Card
HDMI 1080p, USB 3.0

I have played bf3 and I am getting 30-40fps on low settings. So after some research i found out out its down to the graphics card? So I'm wondering if i can buy a sapphire 5670 and use it with my 6670 is that possible?

PLEASE HELP REALLY DESPERATE!!!


Hi - you didn't list your Power Supply, so two GPU's might not be an option anyway.

Plz post your PSU brand/model here along with you mobo model. We can offer better advice
if we have all the facts.

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a b U Graphics card
August 27, 2013 3:20:58 PM
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Like everyone else said it depends if your power supply and motherboard can handle it.

As for using a 5670 with a 6670, you cannot do this. SLI/Crossfire only works with graphics card that are the same, for example you could use two 6670's with each other. The only exceptions to this are if you are using an AMD APU, which crossfires with graphics cards. The other exception is if you have a rebadge and an original card. For example if you had a 5850, and when the next series of cards came out they decided to rename it 6750 and release it as a new card. I do not know if which cards are like this right off, but I know some work this way.
a c 271 U Graphics card
August 27, 2013 3:25:29 PM

IInuyasha74 said:
Like everyone else said it depends if your power supply and motherboard can handle it.

As for using a 5670 with a 6670, you cannot do this. SLI/Crossfire only works with graphics card that are the same, for example you could use two 6670's with each other. The only exceptions to this are if you are using an AMD APU, which crossfires with graphics cards. The other exception is if you have a rebadge and an original card. For example if you had a 5850, and when the next series of cards came out they decided to rename it 6750 and release it as a new card. I do not know if which cards are like this right off, but I know some work this way.


The 4770 and 5770 were two IIRC.
a b U Graphics card
August 27, 2013 4:05:59 PM

Yes see, like the two Mousmonkey just named. Don't suppose anyone knows if the 6670 either is a rebadge or has a rebadge? I guess it could be the 5670 and 6670 are rebadges, but I am not sure really. Off to google :) 
a c 131 U Graphics card
August 27, 2013 4:28:32 PM

Scratch that. The HD 6670 isn't even on that chart.

-Wolf sends
a c 271 U Graphics card
August 28, 2013 3:59:10 AM

And after some sleep my brain cell now thinks that it may have been the 5770 & 6770 that can be run in Xfire not the 4770 & 5770.
a b U Graphics card
August 28, 2013 7:24:01 AM

Well after seeing your crossfire chart you posted earlier, it shows several cards of different shader count working together, so maybe they can.
The 5670 and 6670 have the same memory bit through put, but the 5670 has 80 more shaders and is clocked higher. That difference is a less than the 5970 and 5830 which apparently can crossfire, so you might be able to use them together.

IF you want to be completely safe though you should just buy a second 6670.
a c 131 U Graphics card
August 28, 2013 7:43:41 AM

Here's the first question that needs to be answered. Is your current Radeon HD6670 even capable of being Crossfired? If not, then there's no point in getting a second one.

-Wolf sends
a c 109 U Graphics card
August 28, 2013 8:05:00 AM

Matt2298 said:
I bought a pc a month ago:

AMD FX-6100 3.3GHz Six Core Bulldozer Processor
8GB DDR3 1333Mhz Ram
1TB Hard Drive Storage
AMD Radeon HD 6670 2GB HDMI Graphics Card
HDMI 1080p, USB 3.0

I have played bf3 and I am getting 30-40fps on low settings. So after some research i found out out its down to the graphics card? So I'm wondering if i can buy a sapphire 5670 and use it with my 6670 is that possible?

PLEASE HELP REALLY DESPERATE!!!


I think Wolf is trying to tell you the 6670 doesn't CF.

October 18, 2013 11:12:02 AM

UPDATE: i now have a 7790 and am getting the same fps and the pc has the same specs?
a b U Graphics card
October 18, 2013 2:59:09 PM

SO now you have a 7790 and an FX-6100 but you aren't getting higher FPS than you did with a 6670?
That shouldn't be happening. Make sure you have the driver installed correctly and everything.
If you are getting 60FPS constant, then raise the game quality settings, the resolution, or turn off Vsync if you want. You might just be maxing that particular game if its a bit old.

The CPU you have shouldn't be causing a bottleneck, so some setting somewhere has to be off. I can't think of any other reason why a 7790 wouldn't run laps around a 6670.
!