IPad 2 Battery Life Tests , Still Tears Xoom A New One

IPad 2 Battery Life Tests , Still Tears Xoom A New One

After a recent teardown of the iPad 2 and benchmarks performed by iOS experts, reports suggest that the iPad 2 is not the 1GHz dual-core powerhouse that it claims to be.

iPad 2 clocked down to 900MHz to improve battery life

Engadget reports that AnandTech advises the dual-core A5 chip in the iPad 2 has been throttled and clocks to approximately 900MHz, not 1GHz. This is reportedly done to reduce power use and ultimately increase battery life.

iPad 2 Battery life

I tested a pair of new iPad 2s--a white 32GB model with AT&T 3G; and a black 16GB model with Verizon 3G. For comparison, I also tested with an original 16GB iPad 3G. (While our test models have different capacities, it's worth noting that the iPad uses flash storage--thus, the amount of storage capacity doesn't affect our battery life tests.) Like its predecessor, the iPad 2 boasts battery dell latitude d620 batterylife of up to 10 hours. Or to be specific, Apple's iPad specs page says that's 10 hours of surfing the Web on Wi-Fi, watching video, or listening to music. The 3G-equipped models promise nine hours of Web surfing over a data network.

To test the battery life of each device, I played a movie I bought on the iTunes Store, repeating it until the battery finally gave out. I cranked the screen brightness all the way up, connected to a local Wi-Fi network, and set the volume low.

The good news: even with its increased processor power, faster graphics, and smaller capacity, the iPad 2 actually outlasted the original iPad by a little less than three percent. (Note that the iPad 3G used by our Lab is nearly a year old, so it's possible that its battery life has degraded over the past 11 months.)

I also found that recharging the iPad 2 took much less time than the original iPad--although I didn't precisely gauge how long it took to recharge. The excruciatingly long time it takes to recharge the original iPad had been one of my biggest complaints with Apple's tablet, so I'm happy to see that the new models charge faster.

iPad 2 trumps Motorola Xoom in graphical prowess

However the good news is that the iPad 2 inspiron mini 9 studio xps 1340 batteryand its dual-core PowerVR SGX543MP2 GPU "mops the floor with both the original iPad and the Motorola Xoom." Engadgets states that although the "new chip didn't quite demonstrate 9X the graphical prowess of its predecessor, it rendered 57.6 frames per second in a GLBenchmark test where the (admittedly higher-res) Tegra 2 tablet managed only 26.7fps, and last year's iPad pulled only 17.6fps. That's some serious Tai Chi."

The iPad 2 teardown also revealed that the iPad 2 packs 512MB RAM, compared to its predecessor coming with just 256MB RAM.

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