Since CES2012 since Intel unveiled Medfield platform for the mobile market, Intel landed Android can be said to be a strong field, in addition to the more familiar Z2460, dual-core Z2580 has come into our line of sight. Lenovo K900 as the first handset with a Z2580, it's actual performance has left many users expect, to appreciate the power of dual-core X86 with it!
Lenovo K900 parameters
Model: LENOVO K900
CPU:Intel Atom Z2580 2.0GHz (dual core four-thread)
GPU:Imagination PowerVR SGX544MP2@533MHz
Operating system: Android 4.2.1
Screen: resolution AH-IPS 1920*1080 5.5-inch screen
SIM card type: microSIM
Storage space: 16GB (not supported)
RAM:2GB
Connection: Bluetooth ®, Wi-Fi ® IEEE 802.11 a/b/g/n,Micro USB, 3.5mm audio interface
Camera: 13 million megapixel back-illuminated-F/1.8 apertures, front facing 2 million.
Battery: 2500mAh are not removable
Mobile phone: 157*78*6.9mm
Mobile phone: 162g
Seen from the parameters, K900 highlights very much, first of all, it is the first with a Z2580 phone and use a 5.5 inch 1080P screen (previously only Optimus g Pro uses this size screen), in addition K900 camera using a relative aperture of F1.8 match Sony's 13 million pixel stack-type sensors.
Appearance
K900 front with black design, style, very masculine
Next to the earpiece has a large front-facing camera
Three touch buttons at the bottom, with white backlight
Use brushed metal on the back, give the feeling of texture
On top of a stack of 13 million camera, Aperture is F1.8, next there are two LED fill light, middle is noise microphone
Speaker at the bottom, Shell also has raised, preventing flat block sounds when
Open key on the right side, and SIM card slot
Is the volume buttons on the left
Flat top
Is the micro-USB and the 3.5mm headphone jack at the bottom of the fuselage, the microphone
K900 designs are full of men, heavy use of metal materials are textured on the back has been greatly enhanced. Fit in the metal and plastic box, or higher, give the feeling of a very detailed workmanship. K900 with a 5.5-inch full HD screen, but also because the fuselage than the width increases the difficulty of holding to a certain extent.
The screen
The screen, K900 uses a 5.5 inch 1080P large screen, we contrast the screen is Nubia Z5.
Solid color performance (as K900, next to Z5)
Of course, the leaked IPS is also common (as K900, next to Z5)
Colorful picture contrast (as K900, next to Z5)
The original image
The original image
The original image
Color performance, K900, except in some color saturation is a bit high, excellent overall performance, also reached the top level of IPS screen.
Viewing angle
Seen from the side, K900 screen appears Dim
Diagonal angles, there is a certain line, but also in the acceptable range
Although the screen up to 5.5 inches, but due to the resolution of 1920*1080, K900 up to 400 PPI, so normal to the naked eye from particles don't feel to the screen, the following is really making a display font zoom
UI
K900 lock screen using the "four leaf clover" style, by dragging the shortcut to the four corners, you can unlock, photos, information and telephone four operations
System started at first sight and the Android is no different, but after entering the desktop settings only to find holes. Desktop settings there are a lot of customization options, including icon sets and special effects settings
K900 "desktop" also have a secondary menu, and enter the second level of the menu slide effect effect, and in the secondary menu can be customized
Drop down bar has five shortcuts can be customized below weather, safety, Lenovo power notice the drop down bar. K900 system is based on Android 4.2.1, so it can be carried out through two fingers pulled way shortcut to fullscreen display
Settings shortcuts the drop down bar, but also supports notification management
The Setup interface is divided into three columns, slightly confused. From the system information can be seen, K900 system based on Android 4.2.1
K900 with 16G ROM, close to 10G. Better RAM control, power on the remaining 1.3G
Performance
On the performance of Z2580, I believe we will be very interested in what this high frequency of dual-core processors are capable of four threads?
Theory test
Rabbit test
Test scores are high, reaching 27588 points, it is also used in addition to Exynos 5410 Galaxy S4 outside of the maximum number of points. Observe the scores of mobile phone, you can see the RAM performance is particularly high, ARM processors in the previous evaluation and K900 RAM performance lags. In terms of 3D graphics performance, because the resolution is too high, so even the high frequency version SGX544MP2 no more than 7000 points, which we expected
Rabbit 3D test
Here's the resulting an rabbit 3D drawing in the evaluation, and test scores, average of 25.4 frames, standard, which shows SGX544MP2 in dealing with 1080P resolution is slightly difficult
Vellamo
This is a software to test the performance of the HTML5 Web pages, K900 good scores, HTML5 score over 1800, reach the top level, Metal parts with 716 points
Sunspider
Javascript test page performance, single-threaded processing capability to measure CPU, K900 scored high on this test, other than A6X A15 processor and Apple in mobile devices at a very high level. Because when you use our usual test Chrome K900 underperformance, so we use the native browser for testing.
Version 0.9.1 scores well, after Exynos 5410, 725ms
General scores than version 1.0 version 0.9.1 has a certain decline, K900 results 913ms
Game testing
Since many users are more worried about compatibility issues Z2580 we joined the big game testing, K900 itself is not Google service package, so some games cannot participate in the test.
Dungeon Hunter 4
Latest Gameloft ARPG masterpiece, K900 games correctly, no mapping error, a little Cottonwood (default effects)
Need for speed 17 Hello Kitty s5 cases
K900 has a built-in 17-need for speed, and this version of the game is not high quality. We installed a new need for speed 17 (PowerVR packet), the picture has improved significantly, but fluency significantly affected. Of course, the 17 version of need for speed here is quite old, multicore SGX544 phone (for example I9500, K900) support is not so good, we can look after game update version optimization results
Real racing 3
Real racing 3 is also very high hardware requirements for mobile games, Lenovo K900 special effects in the game are not high, smooth
Judging from the above game, K900 game compatibility problem is big game we only need to use PowerVR series of packets can be used normally. Optimization problems occurred mainly in the game now, X86 now running Android game efficiency is quite low, the old version of the game to SGX544 support is not high enough (mainly in the poor quality of the game, fluency).
K900 fluency, you can watch this video demo:
Video decoding
We also use part K900 video decoding HD video test
Use the video below (if there is no description, are bringing their own video player)
720P group
Official video WMV Microsoft WMVHD, 1280x720,VC-1,MP@HL hard solutions, smooth
AVI of the realm of samsara trailer solutions 1280x720,Xvid hard, smooth
RMVB little theatre of the black God, 1280x720,RV40 software solutions, smooth
FLV OP,1280x720,H.263 soft solution, smooth
1080P group
MP4 1920*1080,H264 (avc1), solution AAC,23fps,ref=9 hard, smooth (hard solution specification supports up to REF=9,ref=10 does not work)
MKV Conan theatrical trailer for 15, 1920x1080,H.264 Main Profile L4.0, AC-3 audio encoding with browsers that do not support, BSPlayer soft solution not fluent, MX Player+X86 decoder hardware solutions
Official video WMV Microsoft WMVHD, 1440x1080,VC-1, MP@HL hard solutions, smooth
K900 decoding, the video is more than enough for most, on a 5.5-inch ultra greatly entire HD screen watching video is a kind of enjoyment, but the video is not a lot of hard solutions support.
Photos
K900 Sony 13 million pixel stack-sensor is used, this is no different from a lot of high-end Android phones are equipped with the same class. But the K900 the F1.8 aperture up to the highest, F2.2 than other stacks in Aperture to more larger, real effect, some of us look at K900 Super camera interface and settings.
Viewing interface
Related settings
Multiple filters
A variety of shooting modes
The real proof (click to view original image)
K900 pictures of specific levels, we will be introduced in the next photo special evaluation.
Temperature
Z2580 has a very high CPU clock speed, so many users have to fear its calorific value will be very big, and go through the test, running big game after 20 minutes, positive temperature is 43 degrees Celsius, back at 34 degrees Celsius (at ambient temperature of 26 degrees Celsius). Due to the extensive use of metal in the back, seen from the temperature while the temperature is not high on their back, but since metals conduct heat faster, Palm and still feel a little hot
Signal
K900 supports HSPA + network 3G Internet appear normal, indoor use downward speed software can reach 700kB/s. But during the call, the sound is relatively small.
Battery life
Believe that many users will be very interested in K900 endurance here through the 3G Internet access as well as game tested K900 electricity consumption.
Dungeon Hunter 4 test for half an hour, power consumption of 22%.
3G test for half an hour, power consumption of 11%.
Summary
K900 as the first dual-core X86 phone, its excellent hardware configuration, tough shape, large screen attracted the attention of many users. In addition, film, advertising, publicity and listing of paving the way for it. From its experience of actual use, K900 and take pictures of the screen expression are worth noting. We were looking at the hardware performance, Z2580 's theoretical performance is very powerful, ultra-high frequency plus powerful memory performance of many concerned users salivate. But subject to ARM the dominant ecosystem of Android applications, Z2580 Super performance is unable to play, this manifests itself in everyday software efficiency, on the effects of big game. Users concerned about compatibility, and power, the K900 's performance was satisfactory. Believe Intel's efforts, which took hold in the Android market, more applications will be developed for the Intel chip features a X86 library of applications to make super SoC Flex, Z2580. Hello Kitty Galaxy S5 Cases
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