Soldato
At 4k I think you'll be maxing out the gpus most of the time, so the 2500k should be fine.
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R9 290X Owners Thread
- Thread starter Kaapstad
- Start date
Do you need two GFX cards for 4K ?
Associate
Also Can I pair my MSI R9 290X OC edition With the MSI R9 290x LE VERSION ? Is that possible
Soldato
Caporegime
How are you finding Mantle Tom?
Soldato
Pretty good in most cases. On DX my fps tanks on certain maps on BF4, especially the new market one.
I tried limiting my fps and using vsync but I get really bad stuttering, so I'm just running without Vsync at the moment. Luckily I haven't seen any tearing yet.
Associate
What does LE mean ? As can't find any info on the web any where about it !
I take it the LE just means not overclocked ? and if you wanted to you could overclock it to 1080 mhz ?
Soldato
Soldato
- Joined
- 14 Feb 2011
- Posts
- 7,490
They're exactly the same card. Just one's factory clocked more than the other.
As already stated. Move the slider to 1080 on the core and hey presto! 80 quid saving.
Whoopsy. I've just ordered a 290X Vapor-X (peasant 4GB) to Crossfire with my Windforce bought one year ago. My finger slipped multiple times and Mastercard let it happen.
I just wanted to share my excitemen... erm... news of this tragedy
Just praying my Corsair AX760 will be sufficient (with overclocked 4770K)?
My PC decided to switch itself off after approximately two hours of playing Sniper Elite III. It refused to boot back up until I had disconnected one of my 290Xs. I had thought I was cutting it fine to Crossfire with 760W but I think I just confirmed it... new PSU required?
Computer boots up as normal with one card disconnected.
Does that sound like a correct diagnosis?
It could be as SEV3 uses a lot of power and produces a lot of heat on the cards.
Having said that check to see that your case is not getting too hot.
Thanks for your input.
The cards were certainly hot to touch. To be more specific the game was crashing with Mantle when looking towards the stormy sky above a fort. The shutdown happened when I switched to DirectX and played on a little further...
In any case, PSU or not in this case I've been a naughty boy again and found a Superflower 1000W PSU on a This Week Only deal jump into my basket...
A new PSU was always at the back of my mind together with (and due to) my desire to Crossfire... a bit of forward planning would have saved me time and money but it's my first build so... lesson learned.
Enough is enough though now... no more expensive tinkering! (For a couple of years or so...)
Sapphire R9 290X Tri-X OC CrossFire Review @Hardware Mag.de placed in OP
http://www.hardware-mag.de/artikel/grafikkarten/sapphire_radeon_r9_290x_tri-x_oc_crossfire_review/
http://www.hardware-mag.de/artikel/grafikkarten/sapphire_radeon_r9_290x_tri-x_oc_crossfire_review/
Soldato
Isn't Crossfire borked in Sniper Elite III with Mantle, it only using one card?
So possibly when you switched to DirectX both cards were in use and the power drain became to much.
Just downloading SEV3 to test out Mantle CF but I think it is still broke.
We will have to pester the Red Baron (AMDMatt) next time he posts to get on the case.
Caporegime
Just downloading SEV3 to test out Mantle CF but I think it is still broke.
We will have to pester the Red Baron (AMDMatt) next time he posts to get on the case.
It's not up to AMD to provide Crossfire support in Mantle titles unfortunately, that's not how the low level API works. All performance optimisations must come from the developer - and this includes adding support for multiple graphics cards. I'm afraid i don't know when it will be added and given the time of year, i would not expect anything in the near future.
What i can say is using DirectX works very well in Crossfire in this title, the scaling is immense. Currently playing it in Quad Crossfire at 4K maximum settings and it looks fabulous with x4 Supersampling enabled too.
If you use 3-4 graphics cards i recommend ditching the stock Crossfire profile and using 1x1 Optimize instead. Using this profile at 4K maximum settings will put you a long, long way ahead of any other graphics card multi gpu combination from any vendor.
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The annoying thing about Mantle is AMD give the game devs something that will give them an edge and then the devs don't make the best of it.
I am not blaming AMD for this and actually feel sorry for them doing the hard work to see the game devs waste it.
Unfortunately this is why DX12 will be a run away success as the game devs will have to do the work writing for it or go out of business.
It is AMD's fault though for surrendering the responsiblity to developers so they should be blamed, unless AMD start giving developers a share in their profits for card sales or send engineers to work with developers at their own expense (like NVidia do) then developers are never going to go through that kind of hassle. AMD are living in cloud cuckoo land if they think they will.
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Soldato
I completely forgot memory clock scales with core voltage on the 290s. I was testing my memory at stock core volts and only got around 1525.
Seems to be running fine at 1650Mhz with max volts.
It crashes at 1700Mhz after about a minute of Heaven.
Seems to be running fine at 1650Mhz with max volts.
It crashes at 1700Mhz after about a minute of Heaven.
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Soldato
- Joined
- 14 Feb 2011
- Posts
- 7,490
See if you can get through FS at 1700 on the 4k setting.
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