Dell Studio 14z: Thin and Light Done Right
by Jarred Walton on October 20, 2009 3:00 AM EST- Posted in
- Laptops
Battery Life without Killing Graphics
We run many scenarios for our battery life tests. Since most the 14z doesn't include an internal optical drive, we will focus on DivX HD, x264 HD, Internet, and idle battery life. The GeForce 9400M definitely helps in video playback with complex H.264 codecs. We measured CPU utilization for both 720p and 1080p x264 videos and Windows Media Player Home Cinema; the maximum CPU usage for 1080p was only 12%, and average CPU use was just over 5% for both 720p and 1080p. Interestingly enough, 720p DivX decoding actually required slightly more CPU time (8.5%).
Compared to other laptops, the Studio 14z delivers reasonable battery life. However, we are using the larger 8-cell battery (71.6Wh/74Wh), and even in our idle test we didn't come anywhere near the 6.5 hours of battery life Dell lists on their website using the default power settings. In order to get to 6.5 hours, you need to enable the "Dell Extended Battery Life" option, which switches to the "Power Saver" profile, disables the Glass UI, and makes a few other tweaks.
It looks like the Studio 14z should offer comparable battery life to the standard MacBook, at least with the 8-cell battery, but that means the MacBook is making better use of its 60Wh battery. The MacBook Pro remains out of reach of similarly equipped Windows laptops (for now). The Studio 14z does extremely well in the Internet and x264 decoding tests, where it beats the Gateway NV58 by over 20% and 40% respectively. The Gateway NV58 has a smaller battery, however, and in relative battery life the NV58 still outperforms the 14z in Internet tests.
Incidentally, battery life while gaming remains acceptable: we were able to run 3DMark06 in a loop for just over three hours (188 minutes), with essentially the same performance as we achieved on AC power. Even with the smaller 56Wh battery, users should still be able to get over two hours of gaming, just shy of three hours of Internet surfing (depending on web site complexity), or about 2.5 hours of HD video playback. That's not as good as the standard MacBook (3.1 hours of video playback and web surfing on a 45Wh battery), but it's no longer a complete blowout.
Power Requirements
As a corollary to the battery life tests, we also performed measurements of power requirements using the AC adapters and a Kill-A-Watt device. These numbers are only accurate to the nearest Watt, so a difference of 1W (i.e. from rounding) could obscure up to a 12% actual difference in power requirements. Also note that power requirements change when you switch to DC power, and power supply (power brick) efficiency comes into play when using the AC adapter, so the battery life tests are a better indication of true power requirements.
The Studio 14z has impressive idle power requirements, coming in just below the NV58. When we put a load on the CPU, however, the lower clock speed on the T6500 in the NV58 puts it back in the lead. Worth noting is that the T6500 has a TDP of 35W compared to 25W for the P8600, but all indications are that it actually doesn't use as much power. TDP isn't a true measurement of power requirements!? Say it isn't so…. Perhaps more interesting is that in our simulated gaming test (3DMark at native LCD resolution), the Studio 14z ends up using less power than any of the other laptops. It's still a far cry away from the netbooks, but it's nice that users can get what appears to be the best current IGP solution without compromising on power requirements.
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JimmyJimmington - Tuesday, October 20, 2009 - link
I've owned this since this summer and it's a fantastic little laptop.I was considering going with an atom or ion netbook until I saw this thing. I upgraded to P8600, 8 cell battery, higher res screen, backlit keyboard, 7200 rpm hd, and a bunch of other bells and whistles. Total came out to ~$960 after student discount. (Take that Apple!)
Lack of optical drive doesn't bother me since I haven't used an optical drive in several years. Even if I did, I have my desktop at home. I take this baby to class.
Weight is the best advantage at 4.6 lbs. with the upgraded battery. The adapter is very light as well (didn't bother weighing it, sorry) which helps for carrying it with textbooks.
I don't understand the complaints about aesthetics, I just got black because it was cheaper. Sorry I'm doing work, not staring at the thing.
It's fairly thin, which is nice. What a lot of reviewers fail to mention is that there's a big trade off between thinness and heat. My girl friends MacBook Pro (not the new unibody, haven't tried those) sends all of the heat downwards. You wouldn't want to put that laptop on your lap. The bottom of the 14z never gets more than warm. CPU is at ~40 degrees as I type.
I never really understood the appeal of "ultrathin" laptops. Light weight is the only thing that matters to me.
I don't know about the low-res screen, but the high-res screen is fantastic. Even better than my very expensive desktop LG lcd when I compared side by side.
Track pad was a little funky until I upgraded to Windows 7 and got the new drivers from Dell's website. I will also say that some computers have problems with inexplicably slow network transfer rates on Windows 7, that doesn't happen on the 14z.
Linux was usable, but didn't like it very much if anyone is interested in that kind of thing.
I never got CoreAVC Pro working, but that doesn't really matter to me. I just used the default HD video decoder in MPC-HC. I suspect it had something to do with the fact that only the video drivers available from Dell worked, the one's on Nvidia's website didn't work. On a related note, I was having some trouble getting dxva working at all in the 64-bit windows 7, telling me direct x run time wouldn't start and it couldn't be installed. Had to reinstall with 32-bit and it went away.
I have aspirations of upgrading to a SSD at some point in the future, so it was a little disappointing to read that hd replacement might be difficult. Not a huge deal since the 7200 rpm is perfectly adequate.
Overall, if you don't care about an optical drive, this is the laptop to get. I would gladly sacrifice that for the weight, and thinness advantages.
Hxx - Tuesday, October 20, 2009 - link
Why don't they include the optical drive? Is it because of its weight, cost, or what? I find this ridiculous since an optical drive is just as necessary as a keyboard. Since I was thinkin about gettin one for school, not everything i need comes on a flashdrive. I find the lack of optical a deal breaker for me.andrewaggb - Tuesday, October 20, 2009 - link
Really? I almost never use an optical drive, I have a usb dvd burner that I use to backup my dvd's, and then I never use the optical formats. I find them too prone to damage, too annoying to swap in and out, they take up too much space, and optical drives are noisy....But that's me. Obviously everybody uses their computer differently. Still if you only occasionally need an optical drive, you could get an external usb drive that you can leave at home.
Hxx - Tuesday, October 20, 2009 - link
I completely agree with you about optical drives being inferior to usbs but they are still very much in use. Once they are ditched out of mainstream use then we're talkin. Gettin an external optical drive would defeat the purpose of buyin a laptop with one in the first place. Blah, maybe i'll just go with the new macbook even though i hate the idea of gettin featureless windows with overpriced hardware, i'll get used to it ... eventually.mindless1 - Tuesday, October 27, 2009 - link
Well they are inferior, but I can accept software is far more often distributed on optical media than USB flash.The real question is, how often do you REALLY need to real an optical disk in a mobile environment, right then instead of later?
I would much rather have the notebook price lowered, save on weight and size, and have a USB optical drive at home or the desk at work.
To most people it does not defeat any purpose, the purpose of a laptop being it's mobility and let's face it, optical media is not tailored to mobility at all.
However, I like having more battery capacity/runtime than many people seem to, so I have a compromise proposal similar to how many laptops used to be made. I propose a slot that can take either an optical drive, 2nd hard drive, or a 2nd battery, that slot having an included cover plate if the user wants none of these in the slot.
Even cooler would be if the slot had more purposes, for example to fit a bluetooth mouse of reasonable proportions, or if the AC-DC adapter fit in the slot so the only thing external you needed for basic use was a power cord with a plug on the end that plugs into that AC-DC adapter in the slot, or perhaps it had a retractable cord so you had nothing at all external to carry with you.
I would easily accept a slightly larger notebook if it meant less loose separate items to take with it, it's just that of all possible separate items, the optical drive is the least likely to be needed.
gstrickler - Tuesday, October 20, 2009 - link
...a Windows laptop that is competitive with the MacBook. It's not a MB, but it's close, and it's not from Apple, and a lot of people will consider that an advantage. However, those same people generally aren't big fans of Dell or HP either, so.......a Windows laptop with a decent combination of performance, battery life, and weight. As noted, no where near the 6.5 hours Dell claims, but perhaps with the low end CPU (lower clock speed and slower FSB), no backlit keyboard, and Windows 7, it might hit that at idle. Still, it got 3+ hours in all your tests, and that's where I set the minimum baseline for a machine that is intended to be mobile. 9400M G, C2D, and under 5 pounds with the 8 cell battery.
...a laptop with decent gaming performance that can run for 2+ hours when gaming. Resolution and detail may have to be stepped down, but those frame rates and resolutions are definitely playable.
Regarding the display. I haven't seen it, but based upon your review, looks like it's got two main issues: It's glossy, some consider that an advantage, I don't. The black level is pretty high (resulting in a poor contrast ratio). That's really only an issue when using it in low light situations, so it's an issue, but probably not a killer one. Max brightness, gamut, color accuracy, etc. are all good.
The single SO-DIMM slot and difficult HD access are tolerable, but definitely limitations. 3GB is enough for most users, 5GB covers almost everyone, but it would be nice to have 8GB as an option.
With the P8600, 5GB RAM, an SSD, 1600x900 display, and the backlit keyboard, it sounds like a nice machine. But, at that point, you're getting really close the price of a MacBook Pro.
The0ne - Wednesday, October 21, 2009 - link
Anything beyond 4Gig on laptop will cost and arm and leg. Let me rephrase that. It will cost an arm and leg if you are purchasing 4GB dimms :D I would love to have 8Gig on my laptop but I cannot justify the hundreds of dollars for an extra 4gig that will benefit me little.gstrickler - Wednesday, October 21, 2009 - link
But prices on 4GB DDR3 SO-DIMMs are coming down, and will continue to do so, it would be nice to have the option when prices aren't outrageous.Guntherman - Tuesday, October 20, 2009 - link
I ordered mine with the 1600x900 and couldn't be happier with the screen. I do think it is a higher quality than the "720p" one.Also, I changed my color from black to blue. The blue has a matte finish which, is very nice. I believe it was a $40 upgrade but, well worth it.
Overall, I am very pleased with this notebook and I have Windows 7 Pro on it and it runs great! It's also nice to watch Hulu and other HD content via HDMI on my HDTV.
fokka - Tuesday, October 20, 2009 - link
im very interested in this laptop and cant wait till it arives in europe. dell is always a little slow with that.imho the most attractive features of this laptop are the cheap keyboard backlight (25$), the hdmi-out in compination with the 9400m and the 1600x900 screen. also the speakers should be quite good in comparison to the competition and for those who need a cardreader, there is an expresscard-option for 25$, too iirc.
after reading your article, the biggest turn-offs are the battery life, which i think is poor for a 70+wh battery and the poor contrast ratio.
also i would like to see some metal-cases from dell, but i think in the budget-sector this will remain a dream.
i now own a dell vostro 1310 and the resolution, grafics, hdmi and speakers would be a welcome upgrade for me, but with only 4 hours of runtime i dont think the 14z will cut it for me. also im dieing for higher contrast and better colours and looking at your measurements i doubt this one will deliver.
i think the best option for me is the 13" macbook pro, although it still is very expensive.
however, keep up the good work!
thanks!