What speed is ram as i want to buy more

[Xvi razor ivx]

since I'm not the best with speeds and understanding them I want to know what my ram speed is so I can add more ram for a upgrade

speccy
frequency
jdec1- 457mhz
jdec2- 533mhz
jdec3-609mhz
jdec4- 666mhz
the ram is ddr3 Kingston dual channel 8gb
size 8192mb

 

[anti-duck]

I would get CPU-Z and then click the memory tab, then under 'DRAM Frequency' multiply whatever is in there by 2 to find your speed and timings, you should match those with the new kit for the best chance of them working together.