Hello. I'm new to the forums as i just started to play dayz mod.(my English is pretty bad and im not good at making these forum texts) I need help whit a performance issue. My Specs: Sapphire radeon hd 7750 1gb gddr5 low profile Amd a10 5700 3,4 ghz (Intergraded Radeon 6770D wich is running in dual graphics mode whit the Radeon hd 7750) 12 gb of ram aspire x3475 motherboard. I have no information about this one and cpu-z doesn't show much information. No idea of my power supply but its not the problem i think. 2 500GB HDD whit the D drive where all my steam games and other games are on is full. (Can it be the causing problem?) My problem is that its running dayz mod poorly whit ~28 fps stable outside of cities and it drops to 20 in cities. i have no problems whit lag spikes or anything like that. I can run bf3 on ultra settings no MSAA without problems 60fps and i run skyrim whit no problems either. My brother just got a new computer whit a amd r7 240 and a intel core i5 4460 and he is running games such as skyrim, Lol, csgo and battlefield worse then me because hes GPU is not the best. But when we play dayz mod he just reks me whit hes performance. He gets 60 fps smooth on the same settings as i do and he hasnt even changed hes settings in the Arma2AO file in my documents. I know in fact that hes computers performance is worse than mine but dayz runs better on hes. Is it because he has a Intel cpu or is my CPU bottlenecking really hard or enything? It cant be my GPU since he has one with lower perfomance. I have tried all kind of fixes. Every setting on low, ramdisk, editing the arma2OA file whit all these gpurenderframestuff. I have tried to search for people whit same specs and same issue but i cant find so i decided to make a own tread. Please answer whit solutions that has something to do whit my GPU/CPU or amd products only or then if you in fact know that something is wrong whit some of my spec. Thank you. Edit: My fps on all lowest setting whit 50 render resolution is about 30 outside of cities and whit all the best settings whit 100% render resolution it runs on 25 so there is no difference whatsoever only a few spikes but that makes sense since its running max. thought it would help since it shows that my computer runs it equally on max.