1600 or 2200 ?

hi i'll gonna buy new pc with these specs

core-i5 750 (2.66G , 8m)
gigabyte p55a-ud4p
nividia gtx 260
4G ram
my question is which of these two rams should i choose that can provid me with fine gaming experience and stability
2*kingmax 1600mhz with cas 9
2*kingmax hercules 2200mhz with cas 10

(note:these two rams are my only options)
please please please help.
3 answers Last reply
More about 1600 2200
  1. any reason why these are your only choices? just personal choices? will you be oC your system?
  2. these are my only choices because i live in a country with a very limited choices and no visa
  3. The way I've had cas vs speed explained to me is like this
    ddr2 800 cas 4 = ddr3 1600 cas 8
    so just check the ratios cas to speed
    something like 8/1600 = x/2200 so x(or cas) = 11
    for the 1600 ram cas 9 is already slower then standard.
    cas 8 ddr3 1600 = cas 11 ddr3 2200
    the cas 10 ddr 3 2200 is the fastest overall...assuming its stable.
    Hope that was not super confusing, and please correct me if i'm wrong folks I know other factors apply in selecting ram but this is the general rule I’ve used.
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