Crossfire question

[wlaro]

Hi guys i have msi b85 g43 gaming that has 

1x PCIE x16 3.0

1x PCIE x4 2.0

so the site say crossfire support

but is really possible crossfire 2 7970s ?

And is possible get more fps than one GPU in game like gta 5 or call of duty?

[CatXice]

graphics cards need pci x16 slots each as the x4 is slow u can crossfire it yes but its not going to be as good as what u would normaly get also crossfire only works on games that "support" it has some devs dont bother makin there game run well on crossfire and sli and some even run worse depends on the games u play take u 4second on google to find out

 

[KeFy]

if the MSI site says so it probably has crossfire support.

 

yes you will get more fps than 1 card in most cases but as i have always stated Sli/Crossfire is iffy using 1 strong card is better in most cases.

[wlaro]

1 minute ago, CatXice said:

graphics cards need pci x16 slots each as the x4 its slow

 

The PCIE 2.0 is x16 but support Only x4 

the question is can 2 7970s Work and GET more fps in game?

[CatXice]

3 minutes ago, CatXice said:

graphics cards need pci x16 slots each as the x4 is slow u can crossfire it yes but its not going to be as good as what u would normaly get also crossfire only works on games that "support" it has some devs dont bother makin there game run well on crossfire and sli and some even run worse depends on the games u play take u 4second on google to find out

 

 

[wlaro]

1 minute ago, KeFy said:

if the MSI site says so it probably has crossfire support.

 

yes you will get more fps than 1 card in most cases but as i have always stated Sli/Crossfire is iffy using 1 strong card is better in most cases.

But is realy possible ? 

There will be bottlneck ?

[ybriK]

Yes you can get more FPS. You shouldn't experience any issues even if it's x4 speed as a GTX 1080 which is like 300% faster than a 7970 is experiencing bottlenecks at x4 speed.

 

https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/24.html

[wlaro]

2 minutes ago, CatXice said:

 

But i will get more performance in game that support crossfire or not ?

[ybriK]

1 minute ago, wlaro said:

But i will get more performance in game that support crossfire or not ?

To be honest with you I'd rather go with a single GPU setup. Sell that 7970 and buy something better like an RX 470, RX 480 or GTX 1060.

[wlaro]

3 minutes ago, ybriK said:

Yes you can get more FPS. You shouldn't experience any issues even if it's x4 speed as a GTX 1080 which is like 300% faster than a 7970 is experiencing bottlenecks at x4 speed.

 

https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/24.html

So do you think that This is a Good idea or not?

[ybriK]

1 minute ago, wlaro said:

So do you think that This is a Good idea or not?

I personally wouldn't do it as multi-GPU setups don't have a stable developer support. Yes they're overall powerful when compared to their single counterparts but don't expect perfect scaling across all games.

[CatXice]

4 minutes ago, wlaro said:

But i will get more performance in game that support crossfire or not ?

yes if the game takes crossfire well 

[CatXice]

i have

i5-7600k

16gb hyper x fury (2133mhz)

xfx rx 480 8gb rs <-- is a £240 gpu

asus z270-p

corsair 550w psu 

 

this build is running bf1 at 80fps ultra at 1440p (VSR)

cpu usage at 80%

 

basicly dont go crossfire if u can afford to buy a better single gpu or like me i got the rx480 all i could afford atm but in a couple months am going to get another 1 because i couldnt afford a 1070 at the time of build

[ATFink]

1 minute ago, wlaro said:

So do you think that This is a Good idea or not?

Dude, look up each game you play to see if it will benefit. Some will benefit, some won't. It all depends on whether or not the devs for each specific game decided to support it. We don't know every single game that does and does not benefit from crossfire. look up the games you want to use it for yourself.