CrossFire 390 = ?

[Aleksbgbg]

What is an equivalent to 2x R9 390s? 980Ti? 390X/980?

[ZetZet]

Around 980ti if all goes well. 

 

If you are planning an upgrade, don't. You will need a new mobo, new psu...

[Castdeath97]

No single card equal, it beats the titan X probably. That is of course if the game supports it well which is not always the case. 

[don_svetlio]

R9 390 CF is about 10% ahead of a 980 Ti/TitanX

[PlayStation 2]

It's pretty over the Titan X if the game supports Crossfire.

 

Around 980ti if all goes well. 

 

If you are planning an upgrade, don't. You will need a new mobo, new psu...

His PSU would be just fine for CF.

[alexhelvetica]

Crossfire or SLI =/= Single GPU preformance.

 

In some games it will be as powerful on even better than a Fury X or 980ti, but some games it might be as powerful as a R9 380, it depends on how well the game is optimized. 

[ZetZet]

R9 390 CF is about 10% ahead of a 980 Ti/TitanX

980ti/titan x at stock*

 

It's pretty over the Titan X if the game supports Crossfire.

 

His PSU would be just fine for CF.

well, it would be pushing it, but probably enough. 

[Aleksbgbg]

Around 980ti if all goes well. 

 

If you are planning an upgrade, don't. You will need a new mobo, new psu...

 

The mobo supports CrossFire and there is 2 16xPCIe

 

I was just wondering though, really. 

[don_svetlio]

 

980ti/titan x at stock*

 

well, it would be pushing it, but probably enough. 

 

390 CF needs 750W

[Aleksbgbg]

390 CF needs 750W

 

736W with my current setup, but I don't know how much the LEDs and other fans are taking. My bet is that it's total is 750W though, surely it would burn out or something?

[don_svetlio]

736W with my current setup, but I don't know how much the LEDs and other fans are taking. My bet is that it's total is 750W though, surely it would burn out or something?

Not sure how you calculated it but it should be around 680-700

[Necrodead]

736W with my current setup, but I don't know how much the LEDs and other fans are taking. My bet is that it's total is 750W though, surely it would burn out or something?

Unless you run a gpu and cpu stress test at the same time you would never hit that number anyways. LEDs are basically nothing in power consumption, and fans and LED strips are a few watts each, but nothing to worry about really, as you won't ever be drawing full load on your GPUs and CPU and all HDDs at the same time

[Godlygamer23]

Moved to Graphics Cards.

[App4that]

Good luck finding a game where it makes a difference you want. You can listen to the fanboys or listen to someone who spent 700 dollars in GPUs. I had a 390 and 290 in crossfire and never once found a game that supports it. I can provide any proof you require.

[TriBeard]

Good luck finding a game where it makes a difference you want. You can listen to the fanboys or listen to someone who spent 700 dollars in GPUs. I had a 390 and 290 in crossfire and never once found a game that supports it. I can provide any proof you require.

As someone with 290's in crossfire...

 

Tomb Raider

Dying Light

BF4

Witcher 3 (Not the best, but with tweaks you can get it to work fairly well)

Call of Duty

Elite Dangerous

 

There are more, but these are just the ones I've been playing recently. Does every game work with CF? No, it doesn't. Profiles take time to come out, and some games never get proper ones. Sometimes you can work around that, sometimes you can't. DX12 should help with that a lot once it starts to become more mainstream. Always go with the best single card you can afford. It's easier, more power efficient and will give you the most consistent performance. But if you've already got one card, or need to push high resolutions two cards is often the only/most cost effective route.

[App4that]

As someone with 290's in crossfire...

Tomb Raider

Dying Light

BF4

Witcher 3 (Not the best, but with tweaks you can get it to work fairly well)

Call of Duty

Elite Dangerous

There are more, but these are just the ones I've been playing recently. Does every game work with CF? No, it doesn't. Profiles take time to come out, and some games never get proper ones. Sometimes you can work around that, sometimes you can't. DX12 should help with that a lot once it starts to become more mainstream. Always go with the best single card you can afford. It's easier, more power efficient and will give you the most consistent performance. But if you've already got one card, or need to push high resolutions two cards is often the only/most cost effective route.

So in Witcher 3 you don't get any icon or menu item flickering? Hmmmm.

[don_svetlio]

So in Witcher 3 you don't get any icon or menu item flickering? Hmmmm.

You got a finicky card. Or maybe cause it was mix & match. Who knows.

[App4that]

You got a finicky card. Or maybe cause it was mix & match. Who knows.

Wait for it, the problem is pretty much universal. Most choose to ignore it or not use crossfire because of it.

[don_svetlio]

Wait for it, the problem is pretty much universal. Most choose to ignore it or not use crossfire because of it.

Lot's of people not having issues

[App4that]

Lot's of people not having issues

Dr. Google disagrees

Also I have yet to see anyone show scaling in Witcher 3 worth the problems, heat, and wattage. SLI is no better right now. Multiple graphics card support in general is a sick joke at the moment.

[TriBeard]

So in Witcher 3 you don't get any icon or menu item flickering? Hmmmm.

 

I get some occasional menus that flicker (buying from vendors is usually where I see it) but other than that, no, I don't really have any of that. I said that witcher 3 was not perfect, and I think a lot of that blame falls on AMD for their crossfire profile, but that doesn't mean that (to me) minor annoyance isn't worth the extra performance.

[Najuno]

Dr. Google disagrees

Also I have yet to see anyone show scaling in Witcher 3 worth the problems, heat, and wattage. SLI is no better right now. Multiple graphics card support in general is a sick joke at the moment.

Can´t speak for CF atm but there are many games with SLI profiles and games like TW3 run like butter with my 2way SLI in 4K. I don´t even have much micro stuttering. I haven´t checked with Fiji or any R9 3xx series. But I´ve seen R9 290X in 2way CF. It worked perfectly fine.

[App4that]

I get some occasional menus that flicker (buying from vendors is usually where I see it) but other than that, no, I don't really have any of that. I said that witcher 3 was not perfect, and I think a lot of that blame falls on AMD for their crossfire profile, but that doesn't mean that (to me) minor annoyance isn't worth the extra performance.

What extra performance though? What are your frame differences between using a single card and crossfire? If you divided the cost of the second GPU by the frames gained, could you honestly say it's worth it? And that's not taking into consideration the larger PSU required, extra heat generated, and power consumed.

[App4that]

Can´t speak for CF atm but there are many games with SLI profiles and games like TW3 run like butter with my 2way SLI in 4K. I don´t even have much micro stuttering. I haven´t checked with Fiji or any R9 3xx series. But I´ve seen R9 290X in 2way CF. It worked perfectly fine.

I hear ya, I have no experience with SLI so have to go off of reports of problems, and you know that those with problems are always louder than those without. As my post count can speak to :lol:

[Najuno]

I hear ya, I have no experience with SLI so have to go off of reports of problems, and you know that those with problems are always louder than those without. As my post count can speak to :lol:

 

Haha that´s indeed very true .