Pc Upgrade Help!

[wolfiebro]

My pc specs are:

CPU: intel i5 4690k @4.4ghz
GPU: gtx 1080 founders edition
RAM: 16gb 1600mhz
CPU COOLER: be quiet! pure
MOTHERBOARD: msi z97 pc mate
PSU: be quiet! 600w (non modular)
Case: Cooler master HAF 912 plus

Storage:
1x 2tb hdd
1x 250gb ssd

So my 3d Mark score on firestrike is 15,000 little low for a gtx 1080 so i suspect a cpu bottleneck but i don't want to upgrade the cpu so how much will 16gb of RAM help or is there anything else that would help except for a new CPU? im aiming for 18,000 to 20,000 score at the end of this build. when cpu is upgraded.

here are some pictures: http://imgur.com/a/mMfzL -sorry for bad cable management and dust in the pc.

 

[Zerk2012]

Why such a fascination with a bench score?
Overclock your CPU to the 4.8 area and you could try 2133 memory.

 

[wolfiebro]

Why such a fascination with a bench score?
Overclock your CPU to the 4.8 area and you could try 2133 memory.

will problably 16gb 2133 but my cpu already has a a high core voltage so to get 4.8 i will need
dangerously high core voltage.

 

[Zerk2012]

My 4790K is at 4.6 with just 1.22 volts.
Your not using software to OC are you.

 

[wolfiebro]

My 4790K is at 4.6 with just 1.22 volts.
Your not using software to OC are you.

Haha NoNo only bios