re: by vixenk - Cnet/forums In Reply to: Replace DDR2-400 with 533 ... and AMD question, also by vois2 1. You probably wouldnt notice any speed difference, mainly because even if your ram is set at a faster speed than your cpu, your cpu would hold it back, and vice versa. 2. I dont know whether that is true or not, first of all. Second of all, DRR667 = PC5300, so yes, it will support your existing memory. happy by Productiveinsomniac - Cnet/forums in reply to: vixenk-post/replace DDR2-400 NOT REALLY TRUE: THIS IS WHY basically you stated that you have 400MHz bus speed memory modules in your system now, and you are wondering if you replaced it with DDR2-533MHz bus speed? would it be faster..... my answer would be simply yes.... provided your mobo Northbridge supports this frequency in its FSB..... refer to your mobo specs! cant stress this enough..... the problem with this question and the given information is: to determin the speed of a stick of ram you must consider these factors as follows: CAS latency speed=lower the better=example- 7-6-6-6 bus frequency in MHz= example- 533MHz bus speed the higher the better provided your mobo supports it Bandwidth= speed at which data can be transferred during a given time period(usually in MBps) the problem is most companies display either the bandwidth-bus frequency-or the internal clock cycle frequency when it shows pc-122 you really dont know if its referring to its bus or its internal clock... at least we have one method to covert bandwidth into bus speed.... to do this simply divide bandwidth by 8 to get frequency...... so 1600mbps=200mhz bus speed.... I would definitely max your GB so if the system allows 3gb of ram then get 3 gb of ram... if you go over it will still use 3 gb of ram... so there is a limit to how much it uses... but if you go over the only thing you hurt is your pocket not the pc.... it will still work provided the FSB supports your MHz on stick... cuz all components work at a lets say tick speed.... they must be syncd with each-other to work within given timing cycles... there is a small chip on top right corner of the memory stick that gives the timing speed to your MCC on your northbridge(or in your cpu if you have a newer pc) so basically I am almost sure that the change will provide a noticeable speed increase with your overall ram speed... but I would get ahold of manufacturer to confirm what that number displayed is referring to... 533? or if they are referring to bandwidth... also take into consideration if your memory chip has parity or MCC built in it... cuz this feature is more efficient but can slow the overall speed... cuz when the memory chip recivevs info/data represented by 1=on or 0=off or 1=charge 0=no charge it has this feature to confirm the same amount of 1s has gone out that came in... in otherwords it may read it twice.... so to put it simply... 533MHz
Posted on: Wed, 06 Nov 2013 00:19:51 +0000
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