Upgrading my ram worth it?

[Cvdasf]

i currently have this build

PCPartPicker part list: http://pcpartpicker.com/p/dKnjgs
Price breakdown by merchant: http://pcpartpicker.com/p/dKnjgs/by_merchant/

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($321.99 @ SuperBiiz)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($87.75 @ OutletPC)
Motherboard: ASRock Z97 EXTREME6 ATX LGA1150 Motherboard ($149.99 @ Micro Center)
Memory: Crucial Ballistix 8GB (2 x 4GB) DDR3-1866 Memory ($84.25 @ Amazon)
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Drive ($197.89 @ OutletPC)
Storage: Samsung 840 EVO 500GB 2.5" Solid State Drive ($219.89 @ OutletPC)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($64.98 @ OutletPC)
Video Card: Asus GeForce GTX 780 Ti 3GB DirectCU II Video Card ($559.99 @ Newegg)
Case: Cooler Master Storm Stryker (White) ATX Full Tower Case ($144.99 @ SuperBiiz)
Optical Drive: Asus BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer ($46.98 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($88.98 @ OutletPC)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($264.99 @ Adorama)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($264.99 @ Adorama)
Keyboard: Razer DeathStalker Ultimate Wired Gaming Keyboard w/Touchpad ($199.99 @ Amazon)
Mouse: Razer Naga 2012 Wired Laser Mouse ($107.99 @ Amazon)
Total: $2805.64
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-11 00:13 EST-0500

I've been told my ram is terrible and is really causing this computer to not shine. Is this true? Why or why not?

If i did want to upgrade ram what would be a good upgrade?

 

[Cvdasf]

Evolve was updating so couldnt play that... but i went ahead and did another VERY graphics intense thing.. and it went to 98%.. so gonna assume thats bad or?

No, it's not bad, it shows you that you are graphics limited. This means that faster RAM will not help one bit. You will need to get your hands on another 780TI card.

Ok thankyou