Help me in these images is this problem on my video card?

[medo_h_e]

on my video card sapphire 5670 HD 1GB

i see some problems on my card i dont know if this problem from my card or my display or in catalyst setting
problems show on many games like gta iv eflc and nfs hot persuit

these are images for problem

First image on gta iv



second on nfs hot persuit 2

[David (PassMark)]

Looks like you have anti-aliasing off or too low.
Check the setting in the games and in you video card device driver.

There is a good comparison image here,
http://www.tweakguides.com/images/Antialiasing.gif

[medo_h_e]

My Spec>

Win XP SP3
CPU : AMD athlon 64 X2 Dual Core 5000+ 2.6 Ghz
Ram : 2GB Transend DDR2 800
MotherBoard : Gigabyte GA-MA74GM-S2
Video Card : Sapphire 5670 HD 1GB
Power Supply : HEC 350 Watt
Display : CRT DELL 17"

[medo_h_e]

Looks like you have anti-aliasing off or too low.
Check the setting in the games and in you video card device driver.

There is a good comparison image here,
http://www.tweakguides.com/images/Antialiasing.gif

ok but AA is turned on From Catalyst Controller and nothing happend

[medo_h_e]

ok thanks for all
i knew that GTA IV not use AA or AF and nfs hot pursuit too

thanks again