Hyper 212 evo P/P or Hyper 412 Slim

[kahlanr]

Hello guys,
I'd like to ask for help with the setup of case air flow and evo's push/pull. Here is is the hardware specs:
Case: CM 371
ASUS M5A97
AMD FX8120 (125W)
2X4GB HyperX 1333Mhz
Nvidia Palit GTX 650 2GB

I'm using the following fans:
2x Gentle Typhoon (D1225C12B4AP-14) - 1450 rpm ( 85 m³/h)
1x Scythe ULTRA KAZE (DFS123812L-1000) - 1000 rpm (44,44 CFM)
Stock CPU fan

My problem is when I'm playing Guild Wars 2, after 10mins temperature goes to 54-56C (Asus AI suite) under 20% load (windows task manager) which I think is ... bad bad. My main goal is to get good ratio low temp / quiet ambiance without making too many new purchases. Can you advise me on which of the following options is the best?

1. CM Hyper 212 evo with my 2x GT AP-14, the evo fan with the ULTRA KAZE go as case fans. (60lv where 1euro = 1.95583 lv)
2. CM Hyper 412 slim (80 lv), the GTs and ULTRA KAZE go as case fans (80 lv)
3. CM Hyper 212 evo with 2x CM Blade masters, the evo fan goes with the ULTRA KAZE go as case fans. ( 100lv).
4. CM Hyper 212 evo with 2x CM SickleFlow, the evo fan goes with the ULTRA KAZE go as case fans. (90 lv).

If the difference between options is not noticable ( say 1C from 45C to 44C) I'd go for the cheapest options. But if the difference is important I'd spend the extra cash. If I OC, it will be little, say from 3.1 to 3.4 or 3.5 with the ASUS application but nothing that require hard tuning. I live in Bulgaria so whatever I buy, it will be the EU version.
Thank you in advance

 

[Dark Lord of Tech]

CM Hyper 212 evo with 2x CM SickleFlow in push pull < would be a good choice