[SOLVED] LG Ultrawide Freesync question

[SkyHye]

He guys,

So i just bought a LG 34UC88 (3440x1440)and first off all, it looks great. Problem is that i didnt do my homework well enough when i bought the screen and i just started catching up with all the freesync and g sync stuff. Apparently this monitor only supports AMD's freesync, which is not really a problems in itself since i have an r9 290. However, I'm pretty sure my r9 290 is going to bottleneck the resolution and now i've read online that the screen only support 55-75 refresh rate. I have a few questions that i tried to search online but the amount of information is sometimes contradictory and i was hoping to get some answers here. Note that i am a casual gamer and the main objective is to avoid screen stutters and page tearing, i dont really care about a few milliseconds of input lag.

- What happends if i turn on freesync (55-75 hertz) but my gpu is only able to squeeze out 40 fps?
- Are there any amd gpu's right now that can handle freesync on this resolution
- What happends to the freesync if i would buy an nvidia gtx 1070/1080

All the information i read today is a little overwhelming , so i'm sorry if my question seems weird or anything. Could you also please give some advice on what setting i should use on this monitor, and if i should use v sync with the free sync?

Thanks for your help guys!

 

[Ne0Wolf7]

Hi SkyHye!
1.) With freesync enabled, you screen will always output the same FPS as your GPU (untill you reach your moniters max refresh rate, it will then display the maximum refresh rate).
2.) The 480 is best for that application if you want AMD (for freesync, obviously)
3.) No more freesync. You can still eliminate screen tearing with VSync, but then you gt input lag.
For that last paragraph, you dont have VSync- thats a Nvidia thing. If you have the option to use AMDs Freesync, do it.

 

[photonboy]

1) 55Hz to 75Hz through DisplayPort only

2) any other FPS you will be using normal method of VSYNC ON or OFF (I'm not sure how you designate in the AMD control panel)

3) NVidia cards would treat this as a normal, 75Hz monitor (i.e. VSYNC ON is 75FPS cap)


Other:
*To benefit from Freesync, try setting a CAP for a game to 60FPS and drop the settings so you don't drop below this. You should then stay in asynchronous mode which means:
- no screen tearing, and
- no added LAG

People have told me that you can't choose 74FPS for some reason if choosing manually. That may or may not be true even though that is still in range. You'll have to experiment.

Basically you want to:

a) CAP so you don't go too high, and

b) adjust settings so you don't go too low, and

c) if you do drop below 55FPS use VSYNC OFF ( so screen tearing, but no added stutter).


OTHER:
If this was a 144Hz, Freesync monitor it would have worked between "zero" up to 144FPS. The problem on the LOW END is that you need the ratio to be at least 2.5X (i.e. 30Hz to 75Hz range or better). This is because the DRIVER has to resend the same frame (such as 29FPS becomes "58FPS" on the monitor side to keep it in asynch range).

You do NOT support this thus you can't game below 55FPS and stay in this range.

I'm quite upset that AMD allows these monitors to be sold. It has the Freesync stamp of approval but it is NOT easy to use. You can get it working quite well though if you learn the lessons I've discussed.

 

[photonboy]

Update:
Most games won't run at 3440x1440 without significantly lowered settings on your GPU. Experiment. (something like CIV5 might work fine at that resolution)

You could try the next lower resolution (2560x1080 ?).

I wouldn't buy the RX-480. It's not enough of a jump IMO. Wait for the R9-490 or whatever.

GTX1070 as said just ends up treating this like a normal 75Hz monitor. One of the options then is Adaptive VSYNC (which toggles VSYNC ON and OFF), but I think you can get a great gaming experience with what you have now.

*IMPORTANT*
In case I'm not clear, figure out what is the HIGHEST FPS you can manually set the cap to in the AMD control panel. Just start with 60FPS as I said. Try 70FPS, even 74FPS. I know this is a bit confusing so you may need to COPY my above post, experiment, then read it again to understand what is going on.

 

[SkyHye]

Update:
Most games won't run at 3440x1440 without significantly lowered settings on your GPU. Experiment. (something like CIV5 might work fine at that resolution)

You could try the next lower resolution (2560x1080 ?).

I wouldn't buy the RX-480. It's not enough of a jump IMO. Wait for the R9-490 or whatever.

GTX1070 as said just ends up treating this like a normal 75Hz monitor. One of the options then is Adaptive VSYNC (which toggles VSYNC ON and OFF), but I think you can get a great gaming experience with what you have now.

*IMPORTANT*
In case I'm not clear, figure out what is the HIGHEST FPS you can manually set the cap to in the AMD control panel. Just start with 60FPS as I said. Try 70FPS, even 74FPS. I know this is a bit confusing so you may need to COPY my above post, experiment, then read it again to understand what is going on.

Thanks for both your responses! One more question, i just played bf4 and bf1 beta and it really started lagging at high/ultra settings. Now i have another problem though. I'm thinking about upgrading my GPU, what are your thoughts on this. Should i get an extra r9 290 for crossfire (i'm not to convinced of this sincei heard read a lot that crossfire should be a last resort option) or just get a gtx 1080, drop the freesync and hope it still is capable of squeezing out 50-60 fps?