GTA 4 - commandline to improve fps and input lag

[chiefDRE29]

;resolution 1920x1080p:

-availablevidmem 1.0 -viewdistance 19 -detailquality 19 -width 1920 -height 1080 -novblank -refreshrate 60 -frameLimit 1

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;resolution 2560x1440p:

-availablevidmem 1.0 -viewdistance 19 -detailquality 19 -width 2560 -height 1440 -novblank -refreshrate 60 -frameLimit 1

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set vsync in to "ON" at AMD, Intel or Nvidia Menu , not in game .
if you want set fps limiter in Nvidia driver inspector program menu , or after burner or other third party.
make sure fps limit is equal to the realtime selected refresh rate of the game and monitor.
so for 60Hz set 60 fps limit.
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extra info:
-availablevidmem 1.0 = 100% of the card VRAM available.
-availablevidmem 0.5 = 50% of the card VRAM available.
etc

-viewdistance 19 -detailquality 19 = viewdistance 20 detailquality 20

-novblank = no vblank interval for vsync.

-frameLimit 1 = locks fps to monitors max .refresh rate
works in combo with -refreshrate 60
do not use "no restrictions" commands.
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my settings for GTX 780

GTA 4 video Settings:
Resolution: 2560x1440p
Aspect Ratio: 16/9

Texture Quality: High

Reflecton Resolutions: Low

Water Quality: Very High

Shadow Quality: Very High

Night Shadows:off

Texture Filter Quality: Anisotropic 16x

Vieuw distance 20
detail distance 20
vehicle density 51
shadow density 0

Definition On
Vsync off in game (set to "ON" at Nvidia menu or AMD menu)

[Senior-Burrito]

♥♥♥♥♥♥♥♥

[Kevin]

-availablevidmem 1.0 doesn't work, use -availablevidmem 614300 (614300 = 6GB video memory, if your memory is different, make the correct memory calculation)

[½Pete]

-novblank:
-norestrictions:
-percentvidmem: 100

is all you need, vidmemory hasnt been necessary to use for years, the game should detect how much memory your card has by default

[Kevin]

Originally posted by ½Pete:

-novblank:
-norestrictions:
-percentvidmem: 100

is all you need, vidmemory hasnt been necessary to use for years, the game should detect how much memory your card has by default

wrong