kH/s or kHps or kHash/s = kilohashes per second or the total hashing speed of all cores on the CPU or GPU.
Unless otherwise stated, "Clock", "Core" and "Memory" are in MHz.
Voltage: listed beside the voltage is the status of firmware or hardware voltage locking. Y = locked, N = not locked, U = unlocked by firmware modification, ? = no information available.
C = core clock, M = memory clock, V = voltage, W = watts