Toshiba Chromebook 2: A Feast for the Eyes
by Jarred Walton on February 11, 2015 10:00 AM ESTToshiba Chromebook 2 Battery Life
After looking at performance, I was hoping that battery life might be a saving grace for the Celeron N2840. Unfortunately, the rated battery life of “up to” nine hours is pretty much spot on. The battery capacity is slightly lower than on the Acer C720 and CB13, but there’s just no getting around the fact that they beat the Toshiba CB35 by a decent amount. Here are the charts:
In our Internet battery life test, which is the same as our tablet WiFi battery life test, the Toshiba Chromebook 2 delivers just shy of eight hours of mobility. That would be great in the world of Windows laptops, but competing Chromebooks are now delivering closer to 10 hours of battery life. Video Playback (again, with the same 720p video we use for tablet testing) is likewise quite a bit worse than competing Chromebooks, coming in 0.9 hours short of the C720 result (though that has a smaller 11.6” display) and 1.8 hours less than the Acer CB13.
There’s another way to look at things, which is the amount of power being consumed by the device. With a 44Wh battery, in our Internet test at 200 nits the Toshiba CB2 is only drawing around 5.5W for WiFi and 7.1W for 720p video, but that’s almost a full 1W more than the Acer CB13 and C720 for WiFi and 1.5-2.0W more for video decoding. And then there are the tablets; the Apple iPad Air 2 draws about 2.8W in our WiFi test and the Nexus 9 just 2.4W; for video decoding, tablets (or at least, Android and iOS) fare even better, as they use even less power than in our WiFi testing – 2.3W for the Nexus 9 and 2.2W for the iPad Air 2. Both of course have significantly smaller displays, which helps tremendously, but if you’re just looking for long battery life they’ll win every time.
Battery life still ends up being respectable, however, as there are few times where people need an uninterrupted 8+ hours of battery life with no chance to plug in. If you’re on a long flight it might be nice to get 10+, but otherwise there’s usually some chance to recharge, and whether we’re talking about eight, nine, or ten hours it’s all still “all day battery life” at some level.
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tdo51144 - Thursday, February 12, 2015 - link
like itTheJian - Friday, February 13, 2015 - link
"In Octane, Kraken, and SunSpider, the N2840 consistently beats the Tegra K1 and in some cases it even ties (roughly) Apple’s A8X."Umm, isn't nexus 9 running a K1, and beating n2840 here in Octane and Kraken?
"Take NVIDIA’s Tegra K1 SoC, which pairs one of the fastest SoC GPUs with a respectable ARM-based CPU; by contrast, the N2840’s CPU is generally faster than the Tegra K1’s CPU"
Both won 2 of the 4 benchmarks you ran (if comparing to nexus 9 which houses the latest K1 rev), not sure how you say either won. Seems like a tie? But yes, gpu lopsided to NV. I think we'd need Denver in a chromebook before you could say these statements for sure correct? You talk as if there is only ONE version of K1. There's only one version in a chromebook, but it's incorrect to say faster than both K1 versions here. Maybe I'd feel better about the statement if you called it 32bit K1 in this context. I can see you're talking chromebooks, but people may not get that denver simply can't be bought yet in one (or at least note that when saying it). We'll probably see an x1 based chromebook before denver again but still...Since I don't think it will be back until 14nm samsung version that is.
You compare the cpu to apples A8x, so why are you not mentioning the 64bit Denver version of K1 in Nexus9? Apple isn't a chromebook either, but is lopped in the cpu talk. If you hadn't done that, it would be clear you're not comparing cpus from tablets and chromebooks. But with apple you ARE adding tablet cpus to the talk, so why not nexus 9's K1?
JarredWalton - Sunday, February 15, 2015 - link
Technically the Nexus 9 is the Tegra K1-64, or more commonly referred to as Denver. Of course, Denver has its own pros and cons, with performance sometimes being quite a bit slower due to the way the binary translation works. I'm not super hung up on which CPU is fastest by 5-10%; it's merely interesting to see Bay Trail Atom doing reasonably well. K1-32 and A8X are both more power efficient however, which is at least as important as raw performance.But you're missing the real point, which is that as slow as the N2840 is, it's as fast as (faster than) the top smartphone SoCs. And yet the slowest Haswell-U processor runs circles around N2840. And the 2955U does that without really sacrificing a lot of battery life. I'm super interested in the 3205U, as you might guess.
LazarusNine - Friday, February 13, 2015 - link
@JarredWalton Excellent review. Informative and useful for comparison. I would very much like to see a review of the Windows 'chromebook', the Acer ES1-111M, or one of its variants. It is very similar to the HP Stream 11, but with upgradeable RAM, it makes for an interesting contender in the sub $200 range.benelux - Saturday, February 14, 2015 - link
This was a really nice article, thanks. Would you mind providing the vintage of your benchmark results? That 5440 Octane score for the HP Chromebook 11 looks dated. My girlfriend's HP Chromebook 11-1101 is on Chrome 41 the current beta release. I get octane scores that average around 6800 on it. My 2013 Samsung Chromebook X303C12 has very similar hardware. It has the same SOC, the same display resolution, and the same 2G ram and 16 GB SSD. My Samsung is on Chrome 40 stable. It has Octane scores above 6400.I realize you might not have all the devices lying around to retest, but if you could indicate when a test was done and on what release that would be great. Chrome OS is very much a moving target. My Samsung Chromebook had Octane scores in the mid-3000 range when it came out in Q4 2013. Now it's in the mid-6s.
benelux - Saturday, February 14, 2015 - link
Correction: the Samsung Chromebook came out in fall 2012, not 2013.JarredWalton - Sunday, February 15, 2015 - link
You're right: some of the scores are quite old. The only recent scores for Chromebooks are the two Acers (C720 and CB13) and the Toshiba; everything else is probably at least a year old. I hope to retire some of the results soon and replace them with more recent offerings.realwarder - Monday, February 16, 2015 - link
Is this a paid article? It sounds very pro-Chrome OS, which given the severe limitations of that OS seem to skip over that completely and even mention it as a benefit.Given that an end-user are basically buying a web browser with no ability to do simple things like print or work offline, it's a lot of money for a pretty worthless PC. It only has 16GB storage (or whatever is left of that).
There are cheaper and more capable PCs around these days running Windows that provide so much more functionality. If all you do want is a portable web browser, there are many tablets that provide more for less too.
JarredWalton - Monday, February 16, 2015 - link
The Windows alternatives have garbage displays, and while you *can* run the stripped down version of Windows on 32GB of storage, it's not comfortable to do so. Chrome OS also boots faster and stays peppier than Windows in general with limited resources. It's so far the best Chromebook in my opinion, but would I personally want to do all my work on it? No, because Chrome OS has plenty of limitations. I covered those extensively in a previous article, and rather than trot out the same content every time I just link back to the relevant review. Like this:http://www.anandtech.com/show/8928/acer-chromebook...
Christopher1 - Tuesday, February 17, 2015 - link
Chrome OS is a waste. It is not as 'fully featured' as Windows 8.1 even and is not able to do a lot of the things that Windows 8.1 can do.Such as full-featured multimedia viewing. Such as even low-end ACDSee Pro-esque photo viewing and editing.
Need I keep on going? Chrome OS is a toy to the most 'in the know' out there today and just is not going to overtake even iOS for most people.
Give me a cheap 400 dollar Windows laptop for each of my children and they are pretty much golden.
It can do nearly ANYTHING save for high-end, last 5 year AAA gaming.