Toshiba KIRAbook: Performance

April 23, 2014 by Michael Epstein Reads (23,591)
Editor's Rating

Ratings Breakdown (1-10)

    • Software & Support
    • 8.5
    • Upgrade Capabilities
    • 7
    • Usability
    • 8
    • Design
    • 7.5
    • Performance
    • 8.5
    • Features
    • 8.5
    • Price/Value Rating
    • 7
    • Total Score:
    • 7.86
    • Rating 1 to 10, top score 10


OLYMPUS DIGITAL CAMERAThe Toshiba KIRAbook performed well overall, thanks to its 8 GB of RAM allowing for greater multitasking than other ultrabooks on the market with only half as much system memory. It blazed through word processing and similar tasks with ease, and could handle 10+ tabs of streaming YouTube and Twitch videos without slowing down at all.

Though the KIRAbook does not have a dedicated graphics processor, it still should be able to handle many games on low to mid graphics settings. However, don’t expect to do so while running many other programs in the background, as the performance will bottleneck with just the integrated Intel graphics.

The Toshiba KIRAbook that we reviewed had the following specifications:

  • Windows 8.1
  • 13.3-inch 2560 x 1440 widescreen PixelPure LED-backlit WQHD touchscreen
  • Intel Core i5-4200U processor
  • Intel HD Graphics 4400
  • 8 GB DDR3 RAM
  • 256 GB SSD
  • 3x USB 3.0
  • HDMI port
  • Headset Jack
  • SD Card Reader
  • HD Webcam
  • 802.11ac a/b/g/n Wi-Fi
  • Bluetooth 4.0
  • 2.9 lbs
  • Price: $1499.99

wPrime processor comparisons (lower scores mean better performance):
Toshiba Kirabook wprime
PCMark 7 is a newer benchmark and measures overall system performance (higher scores mean better performance):
Toshiba Kirabook PCM7
3DMark 11 is a benchmark that measures overall graphics card performance for gaming (higher scores mean better performance):
Toshiba Kirabook 3DM11
CrystalDiskMark storage drive performance test:
Toshiba Kirabook crystalmark

Battery Life
The KIRAbook’s 4-cell Li-polymer battery lasted admirably. Under our rigorous testing conditions, which simulate heavy application, internet and screen use, the KIRAbook lasted about 5 hours. Considering the high-resolution screen and good processing power, this is a good score. In real-world sustained use, the battery should definitely exceed that time, however, since our testing is really pushing the limits of the battery.

Powermark battery performance test:
Toshiba Kirabook powermark

KIRAbook Bottom

Heat and Noise
The KIRAbook features two vents: one on the bottom right side, and another on the back of the chassis, facing towards the hinge. Running 10 tabs of HD Twitch and YouTube streams at once led to the area around the hinge-facing vent (including the bottom right corner of the screen) getting warm, but overall the device stayed cool. The bottom hardly heated up at all, with most of the heat being directed through the hinge vent. This means that the KIRAbook makes a good laptop computer in the literal sense, since this is far more intensive streaming than most users will do at once. All this ran perfectly silently as well.



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  1. HiDesertNM

    From the pictures that display looks like a TN panel. At any rate, for that price it should be 300 nit minimum and IPS. The Samsung for the same price destroys this. Toshiba is losing its Mojo IMO. Have not seen anything interesting from them in quite some time.

  2. seirios

    @HiDesertNM: I just love smartasses like you who post rubbish without thinking (and looking) twice. FYI this laptop has an IPS panel and the brightness is 350 nit. Go figure. As for comparing it to Samsung… I’m sorry. Of course this is a matter of taste as well, but this laptop blows away any Samsung product on any day. I considered buying Samsung laptops and monitors several times in the past, but I always ended up choosing something else, because I cannot stand the oversaturated colours and the blueish glow that is omnipresent in the Samsung universe. To me it feels fake.

    As for the review, and particularly the cons listed, I must say I don’t agree at all. I’ve used this ultrabook outdoors and also our offices are very bright with much natural sunlight – I never had problems with the brightness of the panel. In fact I don’t remember ever using it at 100%. As for the touchpad and keyboard (slick kb is a con ?!) – these are among the best designed features of the laptop. I type a lot, so I wanted an ultraportable device with an outstanding typing experience, and this laptop is excellent at it.

    To me the greatest and only con is the annoyingly small text size which, as stated in the article, cannot always be readjusted. But this is of course Microsoft’s epic failure – simply put, Windows 8.1 (the latest and “greatest”) is not ready for QHD. Maybe a bit more juice in the battery would help, but this is definitely not a deal breaker. Other than that, I’m absolutely satisfied with this device, after having used it for more than half a year.