Should i buy a 144hz monitor? (aka: is my computer powerful enough to need one)

[Muuurbles]

So im building a computer and seriously don't want any graphics tearing and heard that 144hz monitor can negate alot of graphic tearing. but i also dont want to spend extra money that i dont need if my computer will only be handleing most graphic heavy games at 50-80FPS

here is the computer im building:
http://pcpartpicker.com/p/Cw48kL

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($224.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.98 @ OutletPC)
Motherboard: MSI Z97 PC MATE ATX LGA1150 Motherboard ($80.98 @ Newegg)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($56.99 @ Adorama)
Storage: Kingston SSDNow V300 Series 240GB 2.5" Solid State Drive ($88.98 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.49 @ NCIX US)
Video Card: EVGA GeForce GTX 970 4GB Superclocked ACX 2.0 Video Card ($329.99 @ SuperBiiz)
Case: Fractal Design Define R4 w/Window (Black Pearl) ATX Mid Tower Case ($96.99 @ NCIX US)
Power Supply: EVGA SuperNOVA NEX 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($79.99 @ NCIX US)
Wireless Network Adapter: TP-Link TL-WN881ND 802.11b/g/n PCI-Express x1 Wi-Fi Adapter ($17.98 @ OutletPC)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($249.99 @ Micro Center)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($26.99 @ NCIX US)
Other: Mouse pad ($8.75)
Total: $1342.09


And the 144hz monitor im getting

Asus VG248QE
http://www.amazon.com/Asus-VG248QE-24-Inch-LED-Lit-Monitor/dp/B00B2HH7G0/ref=sr_1_1?s=pc&ie=UTF8&qid=1430607961&sr=1-1&keywords=Asus+VG248QE

 

[BadBoyGreek]

Personally, and this is just me, I don't think 144Hz monitor is necessary. Tearing typically happens when your FPS exceeds your monitor's refresh rate, and if you're playing below 144 FPS, then a 144Hz monitor should mitigate tearing.

However, games also don't really need to be played at higher than 60 FPS, since the human eye can't really distinguish anything beyond that, so with that being said, if you enable VSync on a 60Hz monitor, you should, theoretically, not encounter tearing issues either.