The 1.35v modules are designed to be environmentally friendly and ultimately save customers money whilst improving efficiency and power usage
Depends how much difference were talking in power saving from 1.65v to 1.35v, also for anyone currently using 1.65v ram by the time you sell that ram & purchase new 1.35v ram any cost saving would be totally wiped out & probally cost more money anyway.
i5 firstname.lastname@example.orgGHz, Gigabyte Z77X-UP5 TH, Corsair LP 8GB 1600C9 1.35v,
Gigabyte GTX 670 WindForce OC @ 980/1960, Corsair HX 750 PSU,
Samsung 256GB SSD 830, X-Fi Titanium, Thermalright Silver Arrow,
NEC 24WMGX3 24" TFT, Corsair 650D Mid-Tower Case