Dual R9 290's with 3 4K monitors?

[mikesp1234]

I have 2 r9 290's and want 3x 4k monitors. However my problem is, the 290 (can only use the top card ports, crossfire and all) only has 1x DP and 1x HDMI. I'm using both right now for my 2 samsung 4k's but would like to add a third. Options?

 

[bootcher]

Only DP can be used for 4k, so your only option is adding a third card.

 

[mikesp1234]

I can add as many cards as I want...it won't change the fact that I can only use the top most card for ports

 

[qubits]

i dont think it matters what card you port into

 

[-Lone-]

Are you using this for gaming or something else?

 

[mikesp1234]

I am using it for gaming. I tried using the ports on the second card. No good

 

[Quixit]

Assuming your card supports DisplayPort's multi-stream transport feature, you could buy a DisplayPort hub and plug them into that. You are correct that you can only plug monitors into the master card in a Crossfire setup.

 

[-Lone-]

Then I'm afraid you'll have to wait a few years, Unless you wanna game at like 20-30 fps all the time. My build is $10,000 and I don't think even I can run 3x 4k monitors.

 

[mikesp1234]

The only display port hub I can find that seems reliable will only support 3x 2560 x 1600

 

[qubits]

o.. guess it is different for sli then

 

[qubits]

is there a option in catalyst to enable hopes and dreams when you hook up more than 1 4k monitor?

 

[mikesp1234]

hmmm...well I can run anything fine (60fps) at 8k with eyefinity, the only problem is the crosshair is in the middle of the bezel obviously. So i'm thinking that 12K at will run just fine

 

[-Lone-]

Actually that's still 4k, 8k and above is not for sale yet. And are you at low, medium, high, or ultra settings and what games.

 

[mikesp1234]

high settings. 7680 x 2160 is 8k. BF4, COD AW

 

[bootcher]

I see what you mean now, sorry for the previous too quick reply. There is no solution other than what was suggested before, a mst compatible hub. I think however 4k is not possible on a hub since you are limited still by a single DP bandwidth.
I think your best bet will be then to get another card that has more ports available and use it as the primary card.

 

[-Lone-]

high settings. 7680 x 2160 is 8k. BF4, COD AW

Adding more monitors does not increase the image quality of the picture up to 8k, it just adds the pixels of another display.

 

[-Lone-]

If you want more ports, get the 295x2, I have 2 and I can set up to 10 monitors.

 

[mikesp1234]

Sorry but that is incorrect. but I don't wish to argue. As your image is a 4k pic, im hoping you can help me solve this issue. 8k is 7680 x 4320 btw. Regardless how many monitors is takes to get to that. I am of course talking about using eyefinity.

 

[qubits]

http://en.wikipedia.org/wiki/HDMI i have not experimented with 4k but it seems 4k is possible with hdmi at 60hz unless i am missing something

 

[-Lone-]

Sorry but that is incorrect. but I don't wish to argue. As your image is a 4k pic, im hoping you can help me solve this issue. 8k is 7680 x 4320 btw. Regardless how many monitors is takes to get to that. I am of course talking about using eyefinity.

The only solution is to wait for better GPUs, unless someone from somewhere just somehow slap on a GPU that's like $5000 to be able to run 3x 4k monitors.

 

[mikesp1234]

it would be nice. Just a shame that the vid cards only come with 1x hdmi and 1x dp. maybe ill get 2 gtx 780's instead. Qubits: HDMI 2.0 allows 60hz at 4k, which is what im using

 

[-Lone-]

it would be nice. Just a shame that the vid cards only come with 1x hdmi and 1x dp. maybe ill get 2 gtx 780's instead. Qubits: HDMI 2.0 allows 60hz at 4k, which is what im using

Why not get 295x2 since it is the best GPU for 4k, and if you play BF4, AMD GPUs would be best for it.

 

[bootcher]

official 8k resolution is 7680 x 4320. However some call simply adding a 2nd 4k monitor an 8k setup, which is not technically correct.
In theory adding a 2nd or more monitors should increase level of detail, as it doubles the amount of horizontal pixels. This is usually not exactly true due to the fact that most games simply upscale to 4k or higher resolutions, adding nothing to level of detail.

 

[qubits]

http://www.pcgamer.com/sli-overclocking-guide-nvidias-tom-petersen-on-maximizing-multi-gpu-performance/

that could be an option.. the nvidia tech in the video says you can use whatever card you want to port into and says how to control the temps by doing so

 

[mikesp1234]

that's a nice feature. Gaming expert: The r9 295 is a good option, however it is pretty expensive still...