two single channel Ram vs Dual channel

[ehsanpc1]

HI
I want to add an other ram to my pc - because my cpu cooler covered two slots of ram I cannot use dual channel mode. One blue slot and one black slot ram available

My question is how much performance do I lose using single channel mode instead of dual channel and does it worth it to get another ram or not?

my pc :
asus z68pro
core i5 2500
1*8gb corsair vengeance

thank you

 

[The Paladin]

a quick google answers your question

https://www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel?showall=1
https://www.hardwaresecrets.com/does-dual-channel-memory-make-difference-in-gaming-performance/