Performance Benchmarks & Battery Life
|Device||Acer Iconia W3||HP Elitepad 900||Lenovo ThinkPad Tablet 2||Microsoft Surface RT||Google Nexus 7||Apple iPad Mini|
|Display||8.1-inch WXGA LCD||10.1-inch LED-backlit IPS display||10.1-inch LED-backlit IPS display||10.6-inch ClearType HD||7-inch LED-backlit IPS LCD||7.9-inch LED-backlit IPS display|
|Resolution||1280 x 800||1280 x 800||1366 x 768||1366 x 768||1280 x 800||1024 x 768|
|CPU||Intel Atom dual-core Z2760 (1.8GHz)||Intel Atom dual-core Z2760 (1.8GHz)||Intel Atom dual-core Z2760 (1.8GHz)||NVIDIA Tegra 3 quad-core (1.3GHz)||NVIDIA Tegra 3 quad-core (1.2GHz)||Apple A5 dual-core (1GHz)|
|GPU||Intel HD SGX545||Intel HD SGX545||Intel HD SGX545||12-core GeForce||12-core GeForce||PowerVR SGX543MP2|
|OS||Windows 8||Windows 8 Pro||Windows 8 Pro||Windows RT||Android 4.1.1||Apple iOS 6.0.1|
|Dimensions||219 x 135 x 11.4mm||261 x 178 x 9.2mm||262.6 x 164.6 x 9.8mm||274.6 x 172 x 9.4mm||198.5 x 120 x 10.45mm||200 x 134.7 x 7.2mm|
PCMark 7 tests a tablet's overall capabilities. Only full Windows OS devices are able to install and run the benchmark, so the Surface RT, Google Nexus 7 and iPad Mini have been excluded in this test. The benchmark tests a wide range of workloads and system aspects ranging from computation to image and video manipulation and storage. As expected, the W3 scored equally with the more expensive Lenovo and HP tablets, thanks to utilizing the same hardware.
Tablets are generally not known for their imaging capabilities since they are not designed for that purpose, however we decided to put the W3's 2 megapixel camera to the test:
Next, we ran the W3 on an intensive battery test, which involves looping a 1280 x 720 pixel resolution video on the unit. The test is performed under specific parameters:
- Screen brightness and volume at 100%
- Wi-Fi and Bluetooth connectivity turned on
- Constant data streaming through email and Twitter
The Iconia W3 displayed fairly impressive battery life, lasting 7 hours and 47 minutes, beating all three of our 10-inch tablets, including the ARM-powered Microsoft Surface RT. It also managed to outlast Apple's iPad Mini, however it still fell short to the massive staying power of Google's Nexus 7. Power consumption, as expected, was slightly lower than our 10-inch Atom-powered devices, but higher than both the Nexus 7 and iPad Mini. On a side note, we reckon the Iconia W3's weak speakers hardly added to the power consumption figures, unlike the other devices.
We measure the portability of a device by calculating its battery life to (weight x volume) ratio. While the W3 was more portable than its 10-inch Windows 8 cousins, it fell far short of both the iPad Mini and Nexus 7 due to its thickness and hefty weight. In our personal experience, while the W3 is fairly small, its weight makes it less attractive to carry - it feels much heavier than both the iPad Mini and Nexus 7, but not much lighter than our 10-inch tablets. This is because the 10-inch devices are not much heavier than the Iconia W3, but they have a bigger surface area to spread the weight thus making them feel less hefty in overall handling.
Of course, carrying the W3's Bluetooth keyboard with you further hurts its portability, as essentially the keyboard gives the W3 an 11-inch footprint.