2560x1440
Intel Core i5-9400F testing with a Gigabyte Z390 UD (F8 BIOS) and Gigabyte NVIDIA GeForce GTX 1660 Ti 6GB on Ubuntu 19.04 via the Phoronix Test Suite.


first test: 

	Processor: Intel Core i5-9400F @ 4.10GHz (6 Cores), Motherboard: Gigabyte Z390 UD (F8 BIOS), Chipset: Intel Cannon Lake PCH, Memory: 16384MB, Disk: 500GB SanDisk SDSSDH35, Graphics: Gigabyte NVIDIA GeForce GTX 1660 Ti 6GB (300/405MHz), Audio: Realtek ALC887-VD, Monitor: DELL S3219D, Network: Realtek RTL8111/8168/8411

	OS: Ubuntu 19.04, Kernel: 5.0.0-25-generic (x86_64), Desktop: GNOME Shell 3.32.2, Display Server: X Server 1.20.4, Display Driver: NVIDIA 418.56, Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 2560x1440


Unigine Heaven 4.0
Resolution: 2560 x 1440 - Mode: Windowed - Renderer: OpenGL
Frames Per Second > Higher Is Better
first test . 62.85 |===========================================================


Unigine Heaven 4.0
Resolution: 2560 x 1440 - Mode: Fullscreen - Renderer: OpenGL
Frames Per Second > Higher Is Better
first test . 66.74 |===========================================================