m15x ram upgrade

khetik

Junior Member
May 29, 2011
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looking to upgrade my ram which is currently ddr3 3gb 1066mhz (2gb + 1gb) because the laptop feels a bit sluggish even though CPU-Z says its dual channel and symmetrical, i dont understand how.

Looking to get 8gb (2x4gb) but I'm not sure which one to get for better performance:

8gb 1333mhz which is cl9, 9-9-9-24: $81
http://www.newegg.com/Product/Produc...82E16820231342

or
8gb 1066mhz which is cl7, 7-7-7-20: $79
http://www.newegg.com/Product/Produc...82E16820231294

btw I have a i5-540m and gtx 260m (multitask and game a lot, but no video editing/photoshop), but i understand the processor will downclock the 1333mhz, but price is basically the same.