Using 2 different memory kits in the same system

ohim

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Feb 10, 2009
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Hi there, I`m planning to upgrade my system with another 8 GB of ram but i`m confused a bit

i currenly have 8(2x4) GB Corsair Vengeance 1866 (9-11-9-27) and i was planning to get another set but i`ve seen that at the same price i can get 8 GB Corsair Vengeance Pro Silver 2133MHz (9-11-11-31)

http://www.pcgarage.ro/memorii/corsair/vengeance-pro-8gb-ddr3-2133mhz-cl9-dual-channel-kit/

http://www.pcgarage.ro/memorii/corsair/vengeance-blue-8gb-ddr3-1866mhz-cl9-dual-channel-kit/

My system is i7 4970k + Asus Maximus VII Ranger + 8GB 1866

Should i get the same memory as already owned to avoid any issues or it`s ok to get the 2133 and use without issues?