RAM vs Video Card

[Kalin Tomanov]

So i'm thinking of upgrading my PC with a RAM or a Video Card, but i don't know which one should i take. I usually use my PC for gaming, and in most of the games i don't have FPS lag, except in Arma2 and DayZ Standalone, and those are the games that i main. I need an upgrade just for these games. For no reason Arma 2 lags like hell: around 15-20 fps in single player. Sometimes 25. In DayZ Standalone i get 40-45 fps, and 20-25 in cities. I don't know how Arma lags and DayZ doesn't . When i play the Standalone for 1 hour and look at the task manager, 3,9 out of 4 GB of RAM are taken, and it makes my whole PC lag until i turn it off and wait 10 minutes or restart my PC. Please help!

SPECS:
Processor: AMD Phenom X4 840 3.20 GHz
RAM: 4GB
Win7 x64
Video Card:
ATI Radeon HD 5770 1GB 1200MHz

 

[zeyuanfu]

Budget for the upgrade?

 

[Kalin Tomanov]

Well, around 125$

 

[zeyuanfu]

Since the games you play require more than 4 GB of RAM to function well, that needs to be upgraded. If you can spare 10$, this would be the best you can get:
PCPartPicker part list / Price breakdown by merchant

Memory: Corsair XMS3 4GB (1 x 4GB) DDR3-1333 Memory ($24.99 @ Newegg)
Video Card: HIS Radeon R9 270 2GB IceQ X² Video Card ($111.99 @ Newegg)
Total: $136.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-12-27 11:45 EST-0500

 

[Kalin Tomanov]

Can my RAM card and this one stack and be together ?

 

[zeyuanfu]

You should be able to use the Corsair RAM with your system if you either:
-Have two RAM slots with your existing RAM only occupying one slot
OR
-Have four RAM slots with your existing RAM occupying one or two slots.

 

[Kalin Tomanov]

Okay, but I said that i needed to buy only one of them, not both . Could you tell me which option is better for my gaming experience?

 

[zeyuanfu]

If you want to use the Corsair memory, you need one free RAM slot.

 

[Kalin Tomanov]

I checked and i have it, so what's the call.. a RAM card ?

 

[zeyuanfu]

If you're talking about the RAM, it's either called a RAM stick in layman's terms or a DIMM in hardware terms.

 

[Kalin Tomanov]

No, i mean what do you suggest to buy, i want only one of them

 

[zeyuanfu]

I would suggest the RAM in my second post.