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dpotamousis
Paper Tape
Posts: 2
Registered: ‎04-14-2016
Location: GR
Views: 185
Message 1 of 4

G 50 30 memory speed

Hello from Greece!

 

I own a G 50 30 / 80 g 0

 

 my question is why cpu z is only showing memory speed at 666mhz 

can i change it in bios? 

 

Thanks!

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 169
Message 2 of 4

Re: G 50 30 memory speed

Hi Dpota,

 

Welcome to Lenovo Forums.

 

1333 MHz is the effective clock rate. DDR means double data rate, data is transferred on both the rising and falling edges of each clock making 666 MHz effectively the same as 1333. CPU-Z is showing you the actual clock rate. That's perfectly normal you have nothing to worry about and the RAM is working correctly at the right speed.

 

(666MHz) 9-9-9-24 is the delay between certain memory operations (measured in clocks). Lower numbers are better, but they are also relative to clock rate. 9-9-9-24 is a little slow for 1333 MHz, but you should not try changing it as it can lead to system instability.

 

Let us know how you get on.

 

Regards,

Shashi

 

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dpotamousis
Paper Tape
Posts: 2
Registered: ‎04-14-2016
Location: GR
Views: 162
Message 3 of 4

Re: G 50 30 memory speed

you don't need at least 2 modules of RAM to double the data rate?
my laptop has only one memory slot...

thank you for the quick anwser!
Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 157
Message 4 of 4

Re: G 50 30 memory speed

Hi Dpota,

 

I'd like to jump in and say that there is no noticeable performance difference between single and dual channel ram.

Buying 1x4gb instead of 2x2gb means you have the option to upgrade later to 2x4gb, which will put less strain on your memory controller when compared to 4x2gb (which means you might be able to get a higher overclock) but 2x2gb will be slightly faster in certain benchmarks that make use of the DC bandwidth.

 

Let us know how you get on.

 

Regards,

Shashi

 

Tap that Kudos button if I helped 
If you find a post helpful and it answers your question, Please mark it as an "Accepted Solution"! 

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