APU Crossfire?

Cruise51 · Jul 15, 2012, 02:01 AM

I have an A8-3870k fm1 setup and thought I might add a hd 7750 for a passive cooled crossfire build. I'm not sure if this will work or if there will be any performance increase with such un-balanced gpus. Anyone have some advice? Thanks.

lindy · Jul 15, 2012, 04:08 AM

As I don't have an A8 I can't really say, but if you want to crossfire with a discrete graphics card then it would have to be in the same "family" as the one in the APU. The documentation that came with your APU ought to tell you which cards are qualified with it.

agent00skid · Jul 15, 2012, 04:32 AM

http://www.amd.com/us/products/techn...raphics.aspx#3

It says 6670, 6570 or 6450 as recommended. Not sure if others work though.

lindy · Jul 15, 2012, 04:42 AM

Quote:

Originally Posted by agent00skid

http://www.amd.com/us/products/techn...raphics.aspx#3

It says 6670, 6570 or 6450 as recommended. Not sure if others work though.

If those are the cards the documentation lists will work, then chances are good that others won't.

Jetster · Jul 15, 2012, 09:02 AM

http://www.tomshardware.com/reviews/...no,2975-2.html

Cruise51 · Jul 15, 2012, 01:27 PM

That article was a good read, it cleared up some confusion but not all... 7000 series won't work.
I've been offered a good deal on a passive HD 6750 and can't figure out if if it will work well in apu crossfire. Lots of conflicting information, some saying the HD 6670 is the highest card that will work in crossfire. Some saying any 6000 card will work. Some saying it is faster using a single card...
*brain explodes*

Jetster · Jul 15, 2012, 02:35 PM

Just don't call it crossfire, Its not the same. that's were the confusion comes from. Dual Graphics has its own set of rules

pantherx12 · Jul 15, 2012, 02:38 PM

Quote:

Originally Posted by Cruise51

That article was a good read, it cleared up some confusion but not all... 7000 series won't work.
I've been offered a good deal on a passive HD 6750 and can't figure out if if it will work well in apu crossfire. Lots of conflicting information, some saying the HD 6670 is the highest card that will work in crossfire. Some saying any 6000 card will work. Some saying it is faster using a single card...
*brain explodes*

It would be faster using a single card.

How much were you going to spend on the cards you've been looking at.

Perhaps we can find something better for the same price : ]

Mussels · Jul 15, 2012, 03:02 PM

i run APU crossfire in my laptop.

all i can say is: dont bother. get a faster, single GPU instead. crossfire isnt worth it on the low end cards, since it only adds more GPU power - you're going to have RAM, and RAM bandwidth problems that higher end cards wouldnt have.

Ravenas · Jul 17, 2012, 04:16 PM

I'm still curious to know if the APU will crossfire with 2 6670s for triple... I have not found out to date.

Mussels · Jul 18, 2012, 03:45 AM

Quote:

Originally Posted by Ravenas

I'm still curious to know if the APU will crossfire with 2 6670s for triple... I have not found out to date.

i highly doubt it.

Jul 15, 2012, 02:01 AM	#1
Cruise51 Join Date: Nov 2011 Location: Toronto, Canada Posts: 52 (0.09/day) Thanks: 4 Thanked 3 Times in 3 Posts System Specs	APU Crossfire? I have an A8-3870k fm1 setup and thought I might add a hd 7750 for a passive cooled crossfire build. I'm not sure if this will work or if there will be any performance increase with such un-balanced gpus. Anyone have some advice? Thanks.

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Jul 15, 2012, 04:08 AM	#2
lindy Join Date: Jun 2012 Location: 45° 59' 55.57” N 86° 09' 20.10” W Posts: 72 (0.21/day) Thanks: 10 Thanked 24 Times in 23 Posts System Specs	As I don't have an A8 I can't really say, but if you want to crossfire with a discrete graphics card then it would have to be in the same "family" as the one in the APU. The documentation that came with your APU ought to tell you which cards are qualified with it. __________________ Obscurum per obscurius -the obscure (explained) by the more obscure.

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Jul 15, 2012, 04:32 AM	#3
agent00skid Join Date: May 2012 Location: Denmark Posts: 355 (0.93/day) Thanks: 18 Thanked 154 Times in 87 Posts System Specs	http://www.amd.com/us/products/techn...raphics.aspx#3 It says 6670, 6570 or 6450 as recommended. Not sure if others work though.

Jul 15, 2012, 09:02 AM	#5
Jetster Join Date: Jan 2010 Location: Oregon Posts: 2,880 (2.35/day) Thanks: 941 Thanked 866 Times in 633 Posts System Specs	http://www.tomshardware.com/reviews/...no,2975-2.html

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Jul 15, 2012, 01:27 PM	#6
Cruise51 Join Date: Nov 2011 Location: Toronto, Canada Posts: 52 (0.09/day) Thanks: 4 Thanked 3 Times in 3 Posts System Specs	That article was a good read, it cleared up some confusion but not all... 7000 series won't work. I've been offered a good deal on a passive HD 6750 and can't figure out if if it will work well in apu crossfire. Lots of conflicting information, some saying the HD 6670 is the highest card that will work in crossfire. Some saying any 6000 card will work. Some saying it is faster using a single card... brain explodes

Jul 15, 2012, 02:35 PM	#7
Jetster Join Date: Jan 2010 Location: Oregon Posts: 2,880 (2.35/day) Thanks: 941 Thanked 866 Times in 633 Posts System Specs	Just don't call it crossfire, Its not the same. that's were the confusion comes from. Dual Graphics has its own set of rules

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Jul 15, 2012, 03:02 PM	#9
Mussels Doctor Moderator Join Date: Oct 2004 Location: Bendigo, Australia (NOT THE USA) Posts: 34,561 (10.96/day) Thanks: 3,700 Thanked 8,694 Times in 6,393 Posts System Specs	i run APU crossfire in my laptop. all i can say is: dont bother. get a faster, single GPU instead. crossfire isnt worth it on the low end cards, since it only adds more GPU power - you're going to have RAM, and RAM bandwidth problems that higher end cards wouldnt have. __________________ Edumacational thread about PC Audio My external HDD's.5x samsung 1TB + 2x Seagate 1.5TB = 8 TB external storage 32 Bit OS vs 64 bit OS information How to get hardware accelerated H264 playback (DXVA) Netbook Owners United!

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Jul 17, 2012, 04:16 PM	#10
Ravenas Join Date: May 2007 Location: Tennessee Posts: 3,995 (1.82/day) Thanks: 387 Thanked 318 Times in 245 Posts System Specs	I'm still curious to know if the APU will crossfire with 2 6670s for triple... I have not found out to date.

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