Which kingston notebook ram to choose?

[nkebx2]

Hi guys, I want to upgrade my ram but not sure which one to choose since they have similar spec.
Would you guys tell me which one gives a better performance?

Kingston 4GB DDR3 [KVR1333D3S9/4G] Notebook

OR

Kingston 4GB DDR3 [KVR13S9S8/4G] Notebook?

 

[modernwar99]

The Kingston 4GB DDR3 KVR1333D3S9/4 seems like it's better solely based on the reviews on newegg... The only difference is the Kingston 4GB DDR3 KVR1333D3S9/4 has a manufacturer's warranty. The Kingston 4GB DDR3 KVR13S9S8/4 doesn't. I think the Kingston 4GB DDR3 KVR13S9S8/4 is an older version which would explain why it doesn't have a manufacturer's warranty and it's model # is S8/4 while the supposedly newer one is S9/4, that's just a guess/observation though.

 

[nkebx2]

Thanks for answering, then I would go for the Kingston 4GB DDR3 KVR1333D3S9/4.

 

[kingstonhq]

Hi, I'm Jewel with Kingston Technical Support and would like to offer some clarification. Part numbers KVR1333D3S9/4G and KVR13S9S8/4G are essentially the same, except for the DRAM chips used to make them. KVR13S9S8/4G is single rank and uses high density DRAM (4Gbit) while KVR1333D3S9/4G is dual rank and uses lower density DRAM (2Gbit). Both memory when purchased New from a valid reseller carry a lifetime warranty. Part KVR13S9S8/4G is the newer version that is the replace by part of KVR1333D3S9/4G. The only issue to consider between these two modules is the density of the DRAM, older computers may not support high density or single rank 4GB modules. If the system supports single 8GB modules it should support single rank 4GB modules. If you get part number KVR1333D3S9/4G, you do not have to worry about it but it is always best to check compatibility. This can be done by giving us a call or looking up your system in our Memory Search (http://www.kingston.com/us/memory/search/options/). For any further assistance with our products, please call us at 1-800-435-0640 (USA and Canada only) M - F 6am - 6pm PT and I or another available Technician will assist you.

Thank you for selecting Kingston as your upgrade partner.

For other regional contact information, please check here: http://www.kingston.com/us/company/contacts

 

[jaanv]

According to the specs on Kingston's home page ( http://www.kingston.com/dataSheets/KVR1333D3S9_4G.pdf and http://www.kingston.com/dataSheets/KVR13S9S8_4.pdf ), KVR1333D3S9/4G has a smaller power rating (1.410 W) than KVR13S9S8/4G (1.980 W). So maybe your laptop's battery will last a little longer with KVR1333D3S9/4G . Although I don't know how the power ratings correlate with power usage in real-world scenarios.