Please list full specs of your system.
Could be
gpu overheating,
gpu running out of vram with ultra high graphics quality settings,
corrupted/incompatible drivers,
a bad video cable.
it surely cannot be video cable because like when im running csgo on high settings then the artifacts are not flashing or something, when i play like fivem or something on high settings then this happens and gta v only using like 2gb of vram on high setting while my gpu has 4gb ram and the temperature staying like 50 degrees celsius My pc specs:
Operating System
Windows 10 Pro 64-bit
CPU
Intel Core i5 4590 @ 3.30GHz 35 °C
Haswell 22nm Technology
RAM
16,0GB Dual-Channel DDR3 @ 1333MHz (9-9-9-24)
Motherboard
Dell Inc. 08WKV3 (SOCKET 0)
Graphics
AL1916 (1280x1024@60Hz)
HP L1740 (1280x1024@60Hz)
4095MB NVIDIA GeForce GTX 1650 (ZOTAC International) 27 °C
Storage
238GB Patriot P210 256GB (SATA (SSD)) 23 °C
1024GB Microsoft Storage Space Device (SATA (SSD)) 23 °C
Optical Drives
TSSTcorp DVD+-RW SH-216BB
Audio
Realtek High Definition Audio