Legit Mobile Reviews
Intel Core i7-2820QM - Sandy Bridge For Notebook PCs
|Product:||Intel Core i7-2820QM CPU w/ Compal Notebook|
|Date:||Mon, Jan 03, 2011 - 12:00 AM|
|Written By:||Nathan Kirsch -|
Battery Life BenchmarkBattery life is hands down the most important feature on notebooks, so before we show you some numbers let's take a look at how we got our battery life numbers.
To test the battery life, we let both notebooks idle in power saver
mode with the wireless turned on and the monitor brightness all the way down. We recorded from the second when we unplugged the power till when Windows 7 reached roughly 7% battery life. This is the
point where the system hibernates shortly after you see the much hated
pop-up seen below.
In order to get an idea of how long the battery would last under a work load, we played the Blu-ray movie Inception in balanced battery mode with 100% screen brightness until the notebook went into hibernation mode again.
Results: The Compal notebook we are using for Sandy Bridge has a 4800mAhm 71Whr battery. The HP DV4-1555dx comes with a 6-cell battery that is rated at 4200mAh, 47Wh. This puts the HP DV4-1555dx at a disadvantage when it comes to battery life as it has a lesser reserve. The HP DV4-1555dx was unable to play the movie Inception from start to finish as it is a two hour long movie, which is frustrating in real life. The Compal notebook with the Intel Core i7-2820QM Sandy Bridge CPU was able to last 3 hours and 29 minutes on the battery in balanced mode with the screen brightness at 100%. The ASUS K42F was not tested here since the Blu-ray drive is no longer working. Yes, we plan on contacting ASUS to get it RMA'd.
Next Page - Final Thoughts and Conclusions
Page 1 - Intel Sandy Bridge Comes to Laptops!
Page 2 - Intel HD Graphics 3000 Overview
Page 3 - Test Setup
Page 4 - Turbo Mode w/ CPU-Z & Windows Index Score
Page 5 - SiSoftware Sandra 2011c
Page 6 - wPrime v2.04
Page 7 - x264 HD Encoding
Page 8 - Cyberlink MediaEspresso 6
Page 9 - Cinebench R10
Page 10 - Cinebench R11.5
Page 11 - PCMark Vantage
Page 12 - 3DMark Vantage
Page 13 - Resident Evil 5
Page 14 - H.A.W.X. 2 Benchmark
Page 15 - S.T.A.L.K.E.R.: Call of Pripyat
Page 16 - Blu-ray Video Playback
Page 17 - Power Consumption
Page 18 - Battery Life Benchmark
Page 19 - Final Thoughts and Conclusions