Speaking of business notebooks, the first thing that many people think of is Lenovo THINK PAD, which is as black as ever and gives a high-end feel. The mysterious and solemn feeling makes it a perfect choice for business use. Of course, although Lenovo THINK PAD looks similar in appearance, each THINK PAD will make some changes in details to give users a better experience. The editor below brings you a review of the T420 to see what changes it has made.
The appearance has changed greatly from 16:10 to 16:9
The appearance color of T420 is still one word: black. Of course, the material of the T420 shell has not changed. The polyethylene composite material from the T61 series is applied on the aluminum-magnesium roll cage, allowing the shell to maintain high wear resistance, heat resistance, and a good matte feel. At the same time, the aluminum-magnesium roll cage can reduce the impact force by 30% and better protect the safety of the fuselage.
As mentioned earlier, the appearance of the T420 remains unchanged. Later we will take a look at the biggest change in appearance between it and the previous generation T410: the change in screen ratio. Since the advent of widescreen in the T61, the ThinkPad T series has been using a 16:10 screen size, but this has completely changed in the T420, and the screen size has become the more popular 16:9.
There are many small adjustments and changes in details
ThinkPad will make some small adjustments to the interface every time it launches a new product, and these adjustments will always inspire Xiaohei fans. Discussions about whether it is reasonable or not. This time the T420 is not exempt from vulgarity. Some adjustments have been made to the interface details. Below we will make some larger detailed adjustments.introduce.
First of all, although the T420 has reduced the size of the frame due to the adjustment of the screen ratio, this does not delay the T420 from setting the microphone above the screen for the first time, and there is one on the left and right of the camera to form an array. layout, which happens to be matched with the 720p pixel camera to form a new video assimilation system of the T series.
The card reader that existed on the T410 can no longer be found on the T420 at the front of the fuselage. Instead, it has been moved to the left and right rear ends of the fuselage. I think this design is more conducive to the use of SD cards.
The main difference at the rear of the fuselage is that the T420 arranges the USB interface with shutdown charging function next to the DJ11 interface. In the T410 era, this interface was on the left side of the fuselage. Adding a USB interface to the rear of the fuselage is more conducive to the use of long-term peripheral products such as wired mice.
Consistent control and battery life of up to 9 hours
Users are most satisfied with the ThinkPad's control, with a full-size keyboard design and specially enlarged ESC and Delete keys. , allowing users to use it more smoothly in daily work. This is also the major change Lenovo has made on ThinkPad since the launch of T410. Without exception, T420 also continues the advantages of T410 in keyboard. It can also be said that in terms of keyboard, T420 There are basically no changes compared to the T410, including the design of the touchpad.
Since the control experience has not changed, has the T420 done a better job in terms of heat dissipation temperature? Actual measurements show that the heat dissipation level of the T420 has not been significantly improved, as can be seen from the keyboard heat dissipation in the picture above It turns out that the area with the highest temperature is still where the heat dissipation module is placed. In addition, the heat dissipation on the back of the fuselage is also slightly unsatisfactory, with the temperature in the heat dissipation module area reaching 40 degrees Celsius.
The level of heat dissipation directly affects the performance of the entire machine in terms of battery life. High temperature means high power consumption and insufficient heat dissipation. But the performance is not obvious on the T420. The 9-cell 94Wh lithium-ion battery configured in the review machine has a battery life of 542 minutes (about 9 hours) under continuous full load, which is basically beyond the normal working day. Time is one hour. However, users are reminded that this battery life level was actually tested under Uchi technology. It is impossible to have such a long battery life level in high-performance mode.
This Lenovo THINK PAD is a notebook computer launched by Lenovo in 2011. Today's Lenovo THINK PAD still has the same black shell as always, and it is still the first choice for many people when choosing a business machine. However, the current THINK PAD has been greatly improved in performance and details compared to previous products, and the experience of using it will be better. If you want to choose a business notebook, Lenovo THINK PAD series is definitely a good choice.