Question Xeon e5 2667 v2 VS e5 2690 v2

Ive recently purchased a z420 workstation I plan on upgrading into a gaming/workstation build, But I'm torn between the faster clocked 8 core 2667v2 @ 4.0ghz or the 10 core 2690 v2 @ 3.6ghz. What would you chose cores or clocks?
 
Ive recently purchased a z420 workstation I plan on upgrading into a gaming/workstation build, But I'm torn between the faster clocked 8 core 2667v2 @ 4.0ghz or the 10 core 2690 v2 @ 3.6ghz. What would you chose cores or clocks?
Gaming == faster clocked. More than 8 cores won't benefit.
You might benefit from disabling hyperthreading in the BIOS. You will have to test to determine.