Battery Life and Power

Battery Life - Idle

Battery Life - Internet

Battery Life - H.264 Playback

Relative Battery Life

The battery life results again fall right where expected. Without Optimus Technology, the GTX 460M puts a major dent on battery life, so even with 75Wh and larger capacities the best such notebooks can manage is just under four hours of mobility. In reasonable workloads like surfing the Internet, that drops down to about 3.5 hours (give or take), and H.264 decoding will last through most movies but not much more. MSI did make some changes to their power management, apparently, as our initial testing of the GT680R a few months back did worse than the P151HM and G73SW even though the battery capacity is 13% greater. The MSI also gets slightly less relative battery life, but that’s easily explained by the presence of a second hard drive.

We also ran some additional battery life tests, for those who want to do something like play a game while on battery power. The GT680R managed 100 to 125 minutes while looping 3DMark 03/06, and the P151HM lasted 130 to 140 minutes in similar testing. Recharging time on the MSI was 183 minutes (with the laptop powered on but sitting at the Windows desktop), and 143 minutes for the Clevo. Note that the Clevo battery consistently reported 0% wear while the MSI battery wear ranged from 6% to 9%, so that could also affect the battery life as well as charging time. Finally, idle battery life with the LCD at maximum brightness is 190 on the Clevo and 213 on the MSI. That represents an additional power draw of 3.2W for both the Clevo and MSI notebooks, but the interesting thing is that the P151HM manages nearly 330nits compared to just 230nits for the MSI at maximum brightness. We’ll get into the LCD differences in a moment, but it appears that the low contrast on the MSI is a result of the same backlight intensity letting though more light when it’s supposed to show black and less light when showing white—a double whammy with no benefit to the end user (other than cost).

Let the Games Begin LCDs, Temperatures, and Noise
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  • JarredWalton - Saturday, May 14, 2011 - link

    Yeah, the price is the big sticking point, plus I'd still rather have a GeForce 460M + Optimus instead of the Quadro 2000M. I'm not sure why NVIDIA doesn't use GDDR5 for the Quadro 2000M, since that's the only major bottleneck it has. Maybe VRAM bandwidth isn't that critical for Quadro's normal use cases?
  • chrnochime - Saturday, May 14, 2011 - link

    You can't have everything on your laundry list of requirements and still want them to charge the same amount of money as these ones you're offering. Pony up the money or put up with the compromises.
  • chrnochime - Saturday, May 14, 2011 - link

    Dammit I mean "these ones you're reviewing."
  • JarredWalton - Saturday, May 14, 2011 - link

    Take the P151HM, which you can get as configured for about $1300. Now add in Optimus and spend $200 improving the keyboard and chassis. Are you saying that's not possible? Because $200 would go a long way towards fixing the few complaints I had with that design -- I figure $50 for a new keyboard layout with backlighting, and the remaining $150 can be put towards a magnesium alloy chassis. Add in maybe $25 extra to do Optimus (there's no additional hardware required, just enable the feature in the BIOS AFAIK) and you'd have my $1500 "dream" laptop.

    The fact that Lenovo's W520 can be purchased on sale for $1500 with nearly everything in my list proves it can be done--and Lenovo would still make money if they sold every W520 at that price, but they want to make more money.
  • DanNeely - Saturday, May 14, 2011 - link

    I heard about them a few years ago with the 1st generation MSI wind netbooks. The reason they have the retarded tap the corner to scroll instead of the more common swipe the edge behavior is that Synaptics has a patent on the latter. I don't know if they refuse to license it or if Sentelic is just too cheap; although the fact that Synaptic has a stranglehold on the touchpad market makes me suspect the former.
  • yyrkoon - Saturday, May 14, 2011 - link

    Jarred, I am very glad you seemed to take to heart one of the points I made in my last bitch session of a laptop review. Well, at least you seemed to mirror one of my beliefs( in text ).

    Still, I think you would do very well, to educate your readers further. At first, I thought about Anand's comprehensive SSD write up in this context, but I am not sure how that might work in this case. On another semi related point. I still see no mention of driver support. This is very important.

    Passed that, I think most readers understand how you feel about certain aspect of different laptops. Personally though, I would rather not read two or more sentences about how you feel about black glossy plastic. In my case, it is a waste of your time to elaborate any further passed " it has a black glossy shell" or whatever. I do not like black glossy plastic either. but guess what ? My own personal laptop is gloss black . . . We never get exactly what we want.

    A companies case build policies to me, is something you should be taking up with them, and not us. Not to mention that this kind of "thought" in a review can be construed as being biased against the company. Whether truly fact, or not. Now, if the case felt flimsy, or like the screen might snap off in a short period of time of use . . .then sure thats something we should know.

    I can say that my personal use case for a laptop is completely different from yours most of the time. Which in of its self is something to consider. For you, and myself both. This is to say, several of the things that are important to you, are not important to me. Maybe there is some way to format different aspects in a way, where readers can easily take notice, and just skip altogether ? Just a thought. E.g. keyboard, and trackpad functionality are nearly irrelevant. For me, if they work, that is good enough. If I need to do any serious typing, or have need for accurate cursor placement, I *will* use external input devices. No mater where I am, or where I am going with my laptop.

    Anyhow, I felt like this was a decent review, although I care about neither product. I have always liked your reviews Jarred, because for the most part I feel when you review a product you are mostly thorough. Take my niggles for what they're worth, but do please seriously consider adding in driver support/stability comments. I am sure many readers of yours would appreciate that.
  • JarredWalton - Saturday, May 14, 2011 - link

    Driver support is generally fine on any NVIDIA, AMD, or Intel graphics card these days. The reference drivers from all three companies work with the vast majority of notebooks. If there's a problem (e.g. Toshiba opting out of AMD's mobile driver program), I'll make a note of it, but otherwise I haven't seen anything with respect to drivers that concerns me. Granted, if you want to be able to go to, say, MSI and grab all the latest drivers, that might be a bigger problem. I usually go directly to the component manufacturer, so NVIDIA, AMD, Intel, Realtek, etc. sites are where I check. Not sure if that answers your question -- is there something specific you want me to comment on? Stability, incidentally, was top notch on both notebooks, with no crashes or unexpected reboots.
  • bhima - Saturday, May 14, 2011 - link

    Well balanced review overall. I decided to pick up a clevo based laptop as well, but one with Optimus. The main reason I picked a clevo over the Dell was because I could configure the clevo with a 96% RGB color gamut matte screen (the exact same one that is offered as an upgrade to the W series ThinkPads). Dell glossy screens have a habit of being really "glossy" and I just can't take it anymore. Just like glossy plastic is going out of style, I hope glossy screens for laptops do as well.
  • Hrel - Sunday, May 15, 2011 - link

    I agree with your summation. The Clevo seems like the best of the offerings but has flaws I don't want to live with. I really really wish you could get the G53SW in for review, as as long as the screen is good I'd take it. I agree with your wish for a laptop that doesn't exist too; except I don't care much about the speakers. I'd rather the price not get over 1200 than have uber speakers inside my laptop. If I really care I'll use headsets or external speakers or Logitech's clip on speaker. I could live with the 555M GPU as well, as long as it doesn't cost more than 1200. Laptop guys, DO NOT include Blu Ray; that's literally worth nothing to me. Discs are so last decade.

    Since I'm wishing, Asus, or whoever, put your chassis on cyberpower.com as a whitebox or at the very least with the option to not include the OS. I have my own thanks.
  • Hrel - Sunday, May 15, 2011 - link

    Id like to see a review of the gt540 1080p laptop cyberpower has now.

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