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390x and 290 With Directx 12?

DX24

DX24

DX24

Associate
Joined
21 Nov 2010
Posts
338
I know this has probably been asked many times but will it be possible.

Might sell my 290 if not.

Cheers in advance.
 
OK.

I want to crossfire in windows 10 a 290 with 390x is it possible?

Sorry to ask again though just need to be 100% sure.
 
andybird123 said:
except one is 4GB and the other 8GB, so surely you'd be better off tracking down another 290 and saving some money
Click to expand...

Good point ^^^ find a 290 or a 290X if you can find one cheap enough.

The 390 series GPU are a refresh of the 290 anyway, they are based on the same GPU so they should Crossfire but your not going to see the benefits of 8GB if you CF with a 4GB card, so may as well hunt down a cheaper 290.
 
Howling said:
I thought in DX12 the idea was the memory added together instead of being mirrored? So 4+4=8 instead of 4. Might be mistaken though.
Click to expand...

That only works if the developer creates a rendering mode which involves different workloads being on each gpu.

Each gpu still accesses its own memory, just that it all becomes available if its not mirroring resources.

otherwise memory still needs mirroring if they stick with AFR.
 
Crossfire that 290 would easily be the better way to spend your money. Unless your running a I5 CPU or AMD equivalent. I7 then good to go as you'll run into bottlenecks CPU side.
 
I have both 390x and a 290.

I'm still not sure what you mean? Will it work or not at all? Or no point even if yes.

Also I saw Tom Logons review on youtube and must say personally quite a big jump from my 290 though people keep saying the card is not lol
 
DX24 said:
I have both 390x and a 290.

I'm still not sure what you mean? Will it work or not at all? Or no point even if yes.

Also I saw Tom Logons review on youtube and must say personally quite a big jump from my 290 though people keep saying the card is not lol
Click to expand...


Interesting, can you link us to that review? :)

PS: have you tried to CF them?
 
DX24 said:
I have both 390x and a 290.

I'm still not sure what you mean? Will it work or not at all? Or no point even if yes.

Also I saw Tom Logons review on youtube and must say personally quite a big jump from my 290 though people keep saying the card is not lol
Click to expand...

When AMD released the 300 series they kept the drivers they had been optimizing from being used with the 200 series so that when the tech sites did the release reviews the 390 and 390x showed a bigger performance leap than there should have been, A week or so ago AMD re-released the drivers so that they also worked with the 200 series cards. Now if those tech sites did the reviews again they would get much closer results.
What they did was blatantly deceitful.

http://videocardz.com/57160/amd-catalyst-15-7-adds-crossfire-support-between-radeon-r9-390x-and-290x

In the link I posted up the page the guy's at videocardz confirm the 200 and 300 series cards can now crossfire with each other since they allowed the optimized drivers to also work with 200 series cards..
 
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