ASUS EeePC 1215N: Bringing NG-ION to the 1201

Looking at Mobility: ASUS Eee PC 1215N Battery Life

Where the 1215 really improves over the 1201 is battery life. See, the switch to Pine Trail, even on the nettop side, brought about significant reductions in power consumption, due to the on-package graphics die. But where the most improvements came from is in NG-ION. We almost take it for granted now, but Optimus really was game changing in how much it improved battery life in portable systems that have dedicated graphics cards. The original ION platform didn’t have Optimus, so you were stuck on the 9400M the entire time. NG-ION does have Optimus, so it can basically turn off the G 310M and run off the onboard GMA 3150 graphics chip during our battery life tests.

As such, we saw the power efficiency go up by 30% in our Internet battery life test. With a smaller 56Wh battery (the 1201N had a 63Wh 6-cell), the 1215 outran the 1201 by a full hour, with 6.25 hours of maximum runtime. In our Internet and HD x264 tests, we saw increases to 5 and 4.35 hours, respectively.

However, the D525-carrying 1215N still shares the same core problem as the 1201N. The nettop processors, whether it be the current D525 or the older 330, do not have Intel’s SpeedStep technology, so they can’t dynamically change the clockspeeds and voltages as necessary. Unfortunately, SpeedStep is at the core of most of Intel’s mobile processor line when it comes to power efficiency, so the 1215N gets basically shafted in the battery life tests since the processor is running at a constant 1.8GHz even when it doesn’t need to. The 5.5 min/Wh number for efficiency is basically around the same level as the Core i3-running ASUS U30J, while most of ASUS’ Pine Trail netbooks are in the 9.5 min/Wh range.

Now, we’d expect the new Eee 1015PN, with the new N550 dual-core processor and the 8SP variant of NG-ION, to get a lot closer to that mark, but given the nettop processor in the 1215, 6 hours is about as good as the battery life will get. By comparison, AMD's Nile platform posts similar battery life results, with slightly worse x264 battery life despite having a higher capacity 61Wh battery. Overall, looking at Nile vs. the 1215N it's going to be a choice between a faster CPU (AMD K625) and faster graphics (NG-ION).