If you can get a handy DP (DisplayPort) cable it should do the trick.
If your display only supports HDMI1.4 you cannot get HDMI@60Hz@4k (HDMI2.0 is 4k@60Hz)
GTX 970 supports HDMI2.0 and DisplayPort to 4k@60fps
Also you can disable Vsync on the game (r_vsync 0) and/or the NVIDIA own settings (sometimes you can force (disable/enable) vsync on the NVIDIA control panel).
So, i’ve made some tests on my PC and my laptop and here is the results 
PC:
It runs perfect on very high setting (1920x1080).
Average 80-85 FPS
PC specs:
ASUS X79-DELUXE
Intel i7 4-4930K, 6-Core, 3,40 GHz
2x MSI GTX 780 Ti Gaming 3G
16GB RAM
Win 8.1
250GB SSD
120Hz 3D Samsung SyncMaster SA750 27"
Laptop:
I have big problems on my laptop
Terrible on High (1920x1080) average: 15FPS
Not so good on High (1600x900) average 20 FPS
Little bit better on Low (1600x900) average 25 FPS
And finaly it runs Good on Low (1366x768) 30 - 35 FPS
Laptop specs:
ASUS G55V
Intel i7-3630QM, 2.40GHz
Nvidia Geforce GTX 660M 2GB
12GB RAM
Win 8
128GB SSD
Swapped in a DP cable and now we’re cooking.
Unfortunately an oversight on my part in that the Samsung display only supports HDMI 1.4 and not 2.0. Which is a bit of bummer, but never mind. 
On DP I’m now seeing a fairly steady 60 FPS at 1920x1080 - Very High… Which is positive
At 2560 x 1440 - Very High : I’m hovering around 40 upwards to 60 FPS (only when looking skywards). But GPU load spiked to 98 - 99% and flat-lined. So things were pretty tight going at those settings. Still continued to play well enough though, so I might do a burn in at this level.
I tried 3840 x 2160 just for a laugh. Major slowdowns, frame rate dropped all the way down to about 18 - 19. Even on Low I wasn’t hovering much above 20 - 25 FPS.
The games probably optimized to run at 1080p resolutions anyway. So I think 1920 x 1080 at Very High is probably where my comfort zone is as far as a base is concerned.
I had hoped I’d be able to swing a bit higher than that, but we’ll see.
Also - Disabling VSync at the higher res’s had minimal improvements on frames, but overall draw distance and rendering speed / quality seemed pretty severely impacted. Which made it not really a viable option in my testing.
I’ll need to play around in the NVIDIA control panel to see what I can tweak.
if I have to report, the performance is roughly a notch better than current star citizen
I Crash on very High settings other then that no issues.
Try it again. I sometimes crash on Very High on weaker system (GTX670) but after restarting the game it works and with my weak GPU a I have about 35-60 fps at 1680x1050 on Very High. Your GPU should give you about 60 in 1080p i guess.
i5 3570k
p8z77-v lk
GTX 680 2GB
on high settings pretty much staying in the 40’s sometimes up to 53 at the highest but not lower than 40 so far, hopefully performance improves over time 
Set Graphic settings to very high on desktop not in the game.
I’ve noticed that the alpha crashs ONLY if i change it ingame.
So go to
SteamApps\Common\Kingdom Come Deliverance\USER_Game\Profiles\default
and open the “attributes.xml” with text editor.
Edit the following line:
< Attr name=“res_quality” value=“4” / >
Game runs 6 hours without crash or gfx errors
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1920x1080
CPU: AMD FX 8350 4.0 GHz, Stock
GPU: Radeon R9 290
RAM: 32 GB
Very High: 29-50 FPS
Imo a bit low, but who knows. ~29 FPS mostly looking at village from far distance. ~30-40 FPS inside village, 50+ FPS everywhere else.
That’s clearly the issue with Radeons Dan mentioned during the live stream. My GPU is much weaker and I get better framerates. 
Don’t wory, they will repare it.
Interesting is my framerate drops inside the village (about 35fps sometimes) but stays high (about 55-60) even when looking at the village from distance.
Můj Systém / My System:
Gigabyte F2A85XM-HD3
AMD Athlon X4 740 3.2Ghz OC 4.4Ghz
8Gb (2x4) Kingston HyperX Beast 1600Mhz
MSI GTX760 2Gb GDDR5 1020/1085
A-DATA Premier PRO SP900 128Gb SSD
BenQ RL2455HM 24"
Windows 7 Home Premium 64bit
Hra běží na / Game is running at:
1920x1080
Very High
27~45 FPS
AMD FX 8350
Sapphire R9 270
8GB of ram
on high settings I get something in the region of 30-40 with the fps never dropping below 30. Going to medium or even low does little to increase the fps.
Motherboard: GIGABITE Z77x-UD4H
CPU: Intel Core i5-3570@3,4GHz
Memory: 8GB Ram
GPU: Sapphire AMD Radeon HD 7850, 1GB VRAM DDR5
1920x1080
Very high 26,7-30fps 56°C 97% (GPU)
Core 1 58°C 85%
Core 2 52°C 63%
Core 3 50°C 61%
Core 4 55°C 66%
Sometimes game crash on this settings
PC Games Hardware already made a benchmark of the tech alpha.
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System:
CPU: Intel Xeon E3-1230 V2 @ 3.30 GHz
RAM: 8,00 GB DDR3
MTB: ASUS Z77-A
GPU: MSI R9 290 4G
Disk: SSD Crucial M500 - 240GB
OS: Win 8.1 64-bit
Settings:
1920x1080 @ fullscreen
Very High
Vsync: ON
Performance:
FPS around 50-60. Runs very smoothly. In about 30 minutes of playing GPU temperature gets really high though, up to 85C. Also, water glitches - turns pink, specially in forest.
Just thought I might help out, if you are running an NVidia card, you can use GeForce Experience and in the Shadow Play section you can enable an FPS counter for your games. This is a real useful tool when trying to judge the performance of games or even how well overclocking techniques might work. If you don’t have an NVidia card, you can always use AMD’s RadeonPro FPS Counter to see your system performance. Also if you don’t know what your system hardware is, you can always search “dxdiag” in the windows search bar in the start icon on your desktop and that will give you your CPU and GPU information.
Also going to paste my specs and performance in this thread.
30-40 fps @ high
25-30 but freezes completely after 10 seconds @ very high
I have the same problem on a similar laptop:
ASUS N56VZ
Intel i7-3630QM (the same)
8GB RAM 7200rpm
GT 650M 2GB
Win 8
It gets a really poor perfomance:
Low settings on 1366x768: 14-42 fps
High settings on 1920x1080: 6-21 fps
I get those maximum fps only looking at the sky…