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Getting a second Radeon hd 77xx?

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  • Radeon
  • HD
  • Motherboards
  • Graphics
  • Product
Last response: in Graphics & Displays
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December 3, 2012 10:46:49 PM

I built a budget pc a little while back, I got the ga-h61m-ds2 motherboard, 8gb ram, a g850 intel pentium, and a Radeon hd 7750

I know this motherboard doesn't crossfire
From what I've read the radeon hd 77xx series doesn't crossboard with the physical hardware but its more of a software kind of thing

I have the radeon hd 7750 plugged into the pci x16 slot

what I'm wondering is will I get any kind of performance out of another radeon hd 7750 that is plugged into the pci-e?

and if so, would the radeon hd 7770 (more expensive and better model) be worth shelling out for?

Thanks guys,
-Brian

More about : radeon 77xx

December 4, 2012 3:28:51 AM

crossfire is not THAT good,
its a pain in the as* if ask me,
and CFX two low end cards is one of the worst things u can do to yourself,
so if u want more performance, dont crossfireits not a good idea,
if u r satisfied with your current peformance then i say dont add another one.
if u REALLY want more performance then save more money sell your old card and then buy a new single card,

what is your budget and what resolution do u play in?
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a b V Motherboard
December 4, 2012 4:08:27 AM

The 7750 does not need a crossfire bridge. The 7770 does. If you put a 7750 and 7770 then obviously you don't need a crossfire bridge. You do however need a board that supports Crossfire-X. You would have to replace your motherboard for it to work as you need two PCI-E slots.

Something to remember about multi-card setups. Some games see no benefit others see nearly 100% increases.

2 x 7770's are typically fairly close in performance to a single 7870 give or take 10% depending on the game and how well crossfire is implemented in it.

2 x 7750's are close to a 7850 in most games. Again, give or take 10% depending on the title.

1 x 7750 and 1 x 7770 will get you close to whatever the slowest card would get in crossfire. So it would be just a little better than 2 x 7750's.

If you can afford a single, better card then that is the way to go.
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December 4, 2012 5:54:46 AM

thanks guys, the comparisons really helped, i've read one good card is better then two cards....

my concern right now is my cpu is a dualcore at 2.9ghz, so I'm guessing that would be the first upgrade to do before splurging on the gpu
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Best solution

a b V Motherboard
December 4, 2012 5:55:47 AM

You'd be fine up to a 7870.
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December 4, 2012 7:00:21 AM

I have a 550w PSU and like i said the GA-H61m-DS2 motherboard with stock cooling

is my power supply good enough for a 7870?

found one used for two hundred bucks

one more thing to add!

PCI-E 3.0?
I believe my motherboard is only pci-e 2.0
would that bottleneck a 7870?
do i need to get the pcix16 slot?
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December 4, 2012 8:02:11 AM

well a dual core @2,9 GHz, do u have a core 2 dou E7500??
and 500W PSU is fine with 7870,
but why get an old one for 200 when u can get a new one for 220$?
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

and dont worry abour PCI-E 3.0 and x16 slot,
the differences are soooo minute that they are ignored
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December 4, 2012 9:47:26 AM

if for some reason i do some sort of upgrade and do decide to try to crossfire this card rather then go for another one slot big card, the pci-e 2.0 will do fine for now??

i have a g850 (listed above at the top, i'm not a thread jacker :p  )
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December 4, 2012 10:09:21 AM

bdonnelly22 said:
if for some reason i do some sort of upgrade and do decide to try to crossfire this card rather then go for another one slot big card, the pci-e 2.0 will do fine for now??

i have a g850 (listed above at the top, i'm not a thread jacker :p  )


pci-e 2.0 is not a problem crossfire is.
i say get a 7850 or a 7870 and forget about crossifire.

http://www.tomshardware.com/reviews/budget-gaming-do-it...
this is just like your build and better than a 7770 crossfire
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December 4, 2012 10:42:41 AM

i plan on getting the 7870, guess i'm gonna go with the pci-e version just in case in the late future i upgrade the mobo and cpu, i might crossfire a second 7870 rather then get another single card, figure i might as well leave that option open in the future
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December 4, 2012 12:42:17 PM

yeah 7870 is the way to go your current cpu is not that huge of a bottleneck,
upgrading the mobo is not recomended since u can upgrade to ivy bridge or sandy bridge using the mobo u already have,
maybe u should upgrade next year after intel's launch of haswell cpu's
until then no need

and also.........

HAPPY GAMING.........
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December 4, 2012 5:35:38 PM

Best answer selected by bdonnelly22.
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