Jeste shrnuti fsync vs gsync:
AMD FreeSync First Impressions and Technical Discussion | Inside and Outside the VRR Window
http://www.pcper.com/...eSync-First-Impressions-and-Technical-Discussion/Inside-and-Outside-VRR-Wind
Pokud ma FS monitor spodni limit 40Hz, pod 40fps se FS vypina. Monitor pak pracuje s fixed refresh 40Hz, a graficka karta bud s vsync a vysokym lagem odpovidajicimu 40Hz, nebo bez vsync s vysokym tearingem taktez odpovidajicim 40Hz.
Narozdil od Gsyncu, kde modul provadi nasobeni aktualni snimkove frekvence a k podobnemu jevu nemuze dojit.
" I'll gladly take the potential slight flicker of G-Sync over the 40 Hz judder/tearing of the BENQ. The take home point from my observations is that when gaming lower than the variable range, FreeSync panels retain the disadvantages of the V-Sync on/off setting, but amplify those effects as the panel is refreshing at an even lower rate than a standard display (e.g. 60 Hz)."
Dale to vypada, ze budou problemy s overdrive, protoze je nutne ho pocitat dynamicky podle fps (coz gsync modul dela). U testovaneho BenQu se s fsync overdrive vypina a monitor ghostuje.
G-Sync uses its on-board memory to buffer the previous frame, using this data combined on-the-fly with the next incoming frame to calculate appropriate drive voltages and compensate for ghosting (similar to overdrive).
FreeSync relies on the regular adaptive sync TCONs that at present don't seem capable of correcting for this when operating in VRR modes.
Takze fsync je sice skutecne pro vyrobce monitoru "levnejsi" - pro kupujici zatim ne, ale taky ma pulku funkcionality oproti gsync.
Zatim plati jedno pravidlo, monitory se spodnim limitem >9Hz nebrat. A hlidat si overdrive, na tftcentral to uz testuji.
fsync monitory se spodnim limitem >9Hz jsou v praxi nepouzitelne, ale i 9fps panely budou zvyraznovat vsechno trhani a kratkodobe propady fps.