How will this computer run dayz?

they will both run Arma 2 fairly well but FPS on arma mainly depends on the server for example i have a FX 8350 and SLI GTX 670's and some servers i will get less than 30 FPS or some i will get more than 100 FPS
Whats your budget ?

My budget is $600-$700 without a monitor,keyboard and mouse.

And 40 FPS on Highest Graphics?

600 - 700 dollars or ?

Yep Sorry forget $600-$700

Also Off topic but i want to run battlefield 3 also how much FPS Would i get on the first build?

a 7870 gets around 65 fps on BF3 High preset

Total $648
XFX 7870
AMD FX 8350
ASUS M5A97 R2.0
Kingston HyperX Beast 1866Mhz 8GB
Corsair 650w PSU

and thats from amazon you can probably get it cheaper on a PC site

This is the cheaper build.

************ part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-6300 3.5GHz 6-Core Processor ($129.99 @ Amazon)
Motherboard: Asus M5A97 R2.0 ATX AM3+ Motherboard ($94.98 @ Outlet PC)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($47.98 @ Amazon)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive ($56.98 @ Outlet PC)
Video Card: PowerColor Radeon HD 7850 1GB Video Card ($175.98 @ SuperBiiz)
Case: Zalman Z9 ATX Mid Tower Case ($34.99 @ Newegg)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($61.24 @ Amazon)
Total: $602.14
(Prices include shipping, taxes, and discounts when available.)
(Generated by ************ 2013-03-31 04:01 EDT-0400)

You should get at least 1Tb HDD. You cannot imagine how fast you run out of memory with 500Gb. My friend thought 500 is enough but he had to buy more after a month... It isn't even too expensive. Otherwise that build looks good

it will run most games on high / medium might wanna get a better CPU tho FX8320 or FX8350 or I5 2500k or I5 3570k

---------- Post added at 09:28 AM ---------- Previous post was at 09:25 AM ----------

i have 8GB of HyperX Beast 1866Mhz and 8GB of HyperX Genesis 1600Mhz spare i could send you either if you wanted so you could save money on the ram and get better GPU or CPU would have to sort something out tho also i would recommend 1TB WD Caviar Black or 1TB WD Caviar Green

How About This?

************ part list: http://************.com/p/M7vS
Price breakdown by merchant: http://************.com/p/M7vS/by_merchant/
Benchmarks: http://************.com/p/M7vS/benchmarks/

CPU: Intel Core i5-3350P 3.1GHz Quad-Core Processor ($179.99 @ Newegg)
Motherboard: ASRock H77M Micro ATX LGA1155 Motherboard ($69.99 @ Amazon)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($55.99 @ Newegg)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($89.98 @ Outlet PC)
Video Card: Sapphire Radeon HD 7870 XT 2GB Video Card ($234.99 @ Newegg)
Case: Zalman Z9 ATX Mid Tower Case ($34.99 @ Newegg)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($61.24 @ Amazon)
Total: $714.17
(Prices include shipping, taxes, and discounts when available.)
(Generated by ************ 2013-03-31 04:34 EDT-0400)

i wouldnt go with the 3350P mabye change GPU to a 7850 ang get a 2500k

---------- Post added at 09:42 AM ---------- Previous post was at 09:35 AM ----------

What about this
FX 8350 8 Core @4.0Ghz
XFX 7870 2GB GDDR5
ASUS M5A97 R2.0
Corsair Vengeance 8 GB ( 2 x 4 GB ) DDR3 1600 MHz
Cooler Master eXtreme Power Plus 550w
ZALMAN Z9 Plus ATX Case
Total = $664.11

I guess i will stick to your build

Edit:Really you would send me your extra ram?

depends how much it would cost to send :P i dont know where you live
EDIT: did a quick search on how much it would cost and not much less than £5 so i dont see why not PM me an address and i will get it sorted out

---------- Post added at 09:57 AM ---------- Previous post was at 09:48 AM ----------

Seagate Barracuda 2 TB
FX 8350 8 Core @4.0Ghz
XFX 7870 2GB GDDR5
ASUS M5A97 R2.0
HyperX Genesis 1600Mhz or HyperX Beast 1866Mhz ( free from me )
Cooler Master eXtreme Power Plus 550w
ZALMAN Z9 Plus ATX Case
Total = $644.80

Sound Good ?