In today's notebook products is highly competitive, ThinkPad business notebook as flagship of the brand still has many fans, and in order to satisfy the spending power of different classes of user needs, ThinkPad notebook products are divided into multiple series have their own characteristics. L Series notebook is positioned as a lower-end models in the business application, perhaps upon it you don't see the t series notebooks from the material to be used on the work of excellence, but ThinkPad's descent, excellent quality, excellent performance, and lower the price and other factors also make it a successful recruiting is a lot of users. Today we bring you reviews of this product is the ThinkPad l series notebooks launched a product L421, hope that after having read this article to let readers have a comprehensive understanding for this product.
From the configuration table, you can see, although we pointed out earlier in ThinkPad l series of positioning only low-end commercial application, but in the core parts respects the L421 should be or has a good overall performance. In contrast, the machine compared to t-series products in materials and workmanship of the fuselage had a very significant gaps, a concrete expression of this is also the cost savings, while the specific details of all aspects of the machine we will later pointed out one by one in the article.
From the material point of view this L421 addition to screen hinge, a small number of parts in vast parts of the fuselage uses ABS plastic material, using this material is brought to the high hardness and abrasive feel, but also effectively control production costs. The fuselage top cover part of the machine are made from ABS plastic, we tested a finger pressed firmly which occurs when the top cover of the sinking of a lesser degree, this shows that the top cover while it is possible to bring to the screen a role in protecting, but compared to high-end models, such as t-series, in the area of safety performance slightly smaller.
L421 configured for the user on a 16:9 14-inch matte screens, as trends and application needs change, 16:9-screen ratio is the latest generation of business product differentiation, and borders of the matte screen with matte material you can use the excellent complex light environment in order to provide users with excellent visual experience. We can see from the diagram, the machine will have two speakers on the bottom of the screen position, homeopathy is populated with more open on the bottom of the screen provides users with a Visual sense of uncoordinated.
On the surface of the keyboard layout, the L421 uses the familiar classic ThinkPad series keyboard, press on the handle, key process and the level of soft and hard part is in place, long-term use can be effective to avoid hard feelings. This machine also provides users with a common shortcut keys, and classification according to application demand be disaggregated to the left and right sides of the keyboard area, and in addition the trackpad also offers the classic ThinkPad series of little Red Riding Hood lever.
This L421 provides users with 3 USB 2 interface (the support shutdown power supply), 1 eSATA connector, 1 DP interface, 1 VGA connection, 1 RJ45 interface, 1 headphone/mic composite jacks. From a practical point of view, whether it is from there on a number of these interfaces, is adequate to meet the needs of most users for daily use in practical applications, but some of these interfaces may be due to causes and effects of xiangli too close to both.
We received this L421 sent test prototype powered by an Intel Core i5 2540M processor, this processor is based on the 32nm process manufacturing process and frequency 2.6GHz, three-level cache is 3MB, a dual-core processor and supporting HT HT, Quad-frequency acceleration technology, Turbo speed maximum frequency for 3.3GHz, the four-thread processor with dual core processing power, thermal design power TDP 35W. LENOVO Laptop Batteries.
L421 display unit using the HD 6470M discrete graphics card with this video card is AMD's second generation DX11 video card entry level products, the most important feature of the video card can support DX11 application, for the growing popularity of DX11 application, can provide a good environment for run support. This video card is based on 40nm process technology, information obtained from the current view, HD 6470M with 160 streamer, 8 texture unit, core frequency for 480-800MHz, video memory frequency is 800-900 MHz. ATI Radeon HD 6850M to be completed with 64-bit GDDR5/DDR3 memory, support DX11 UVD2 hardware decoding engine and OpenGL 4.1, integration, support PowerPlay, PowerXpress, Swithable Graphics and a series of energy-saving technologies.
L421 adopts HM65 chipset, as with previous mobile chipset based desktop chipset, HM65 H65 chipset chipset is also derived from the desktop. HM65 also uses the single-chip architecture, memory control unit (IMC) was integrated into the processor, so it is not commonly known as the MCH North bridge chips (Memory Controller Hub), there is only one platform control unit PCH (Platform Controller Hub) burden on single-chip PCI Express controller and in the past commonly known as ICH Southbridge chip (Input/Output controller Hub) provided by the function, HM65 can support up to six SATA 6Gbps interface (eSATA), 14, eight PCI-e 2.0 interface USB 2 interface, Hanksville GbE MAC Gigabit Ethernet controllers, Matrix Storage matrix storage technology, high fidelity audio, High Definition Audio Management Engine Ignition Firmware technology and so on.
This product L421 in storage systems come standard with 1 2GB DDR3 1333 memory as well as a 500GB 7,200 RPM hard drive, hard drives not only larger capacity, 7,200 RPM rotational speed can support more users to better achieve a variety of disk operations, and this class action is a more important factor affecting ordinary Office application. On the other 2GB the amount of memory, it is much too small, especially under the 64bit system will affect the overall performance of the play, so we also recommend that users who have the ability to self for the memory capacity for expansion.
From the WIN7 system of rating the L421 's final score is 5.3 in all subprojects desktop graphic performance score lowest comprehensive results and become the bottleneck, but in practice even 5.3 minutes represented by the property can also be quite well supported users turn on a variety of desktop effects. Other subprojects, processor performance and gaming graphics performance of the relatively high, judging from these two results, when the machine is applied to a different action when its overall performance should have good performance. LENOVO Laptop Batteries.
In addition to using Windows 7 's index tests, we use 3 coverage higher and users widely recognised professional performance evaluation software for this product has been tested. By 3DMARK, PCMARK and SYSMARK test effort can help us much more intuitive to learn the product at the time of application performance.
In the previous tests by testing software is very intuitive score, but for many readers, and not on the performance of these scores represent an intuitive feel. Taking into account this situation, in order to get more people on the performance of the product has a more intuitive experience, we use a number of typical it application, including the file operation, high-definition video playback, picture compression, and so on, so as to further his performance in everyday applications.
LENOVO battery test.
We mainly use Mobile Mark2007 software multimedia production is mainly used to simulate the daily Office and thorough examination of life. MobileMark 2007 is based on real-Notebook battery life and performance evaluation software. It supports Windows Vista/XP 64bit/32bit version (Professional/Home). It has three modes of testing: Productivity module, and DVD module and the Reader module, called Adobe AcrobatReader, respectively 7, Adobe Illustrator CS2, Adobe Photoshop CS2, Apple Quicktime 7.1, Intervideo WinDVD 8, Macromedia Flash 8、Microsoft Office 2003 Pro、Microsoft Project 2003、Winzip 10.0。
In testing, we turn off the screensaver, hibernation, and set both the battery and the system for maximum performance mode as a basis for testing, test this L421 notebook showing 231 minutes of battery life, nearly 4 hours of battery life to meet General requirements. In addition, taking into account in testing the high pressure machine, and generally do not appear in the practical application of continuous high-load applications, plus user or power management measures through effective controls and other factors, so we have reason to believe that the actual battery life should be a better application performance. Users who were demanding to battery life, you may want to consider replacing the larger-capacity battery. LENOVO Laptop Batteries.
Actual power consumption tests.
We also tested the actual power consumption of the product, we tested a total power consumption of this product in the three States. We use intelligent digital multimeter UNI-T UT71E as test equipment, namely determination of power but not on State of the connection (non-rechargeable), system startup is complete, within 5 minutes of no action, but does not sleep (non-rechargeable), and system startup is complete, processor load, disk at maximum throughput (non-rechargeable) lower power consumption.
In the three test conditions which L421 power 0.4W, and 25.2W, respectively, also match the performance of discrete graphics product, this means that users in the use of this laptop will result in higher overall performance, but also paying a relatively higher electricity costs.
Heat tests.
In this session, we use a FLUKE Ti25 infrared imaging equipment on the calorific value of the product was a test, test measurement of portable c side, bottom and the heat sink temperature. In testing, we used the EVEREST software, select the System Stability Test, check all the items, 15 minutes after the test, and we measure indoor temperature, to enable readers to test the data with an intuitive understanding.
You can see from the above test chart, this L421 comparison of performance well in temperature control, keyboard overall temperature close to human body temperature and the maximum temperature is only about 38 degrees Celsius, this shows that even in the case of high load operation actions that the user can still have a very comfortable feel. Thermal imaging can see in the picture from the bottom, the hard drive location has become the focus of bottom heat accumulation area, above 45 degrees Celsius as well as stating that the machine is not intended to be used was placed on the legs for a long time.
Since the product shows good performance, it is poor compared with the positioning high-end ThinkPad product where? Judging from the core allocation, although L420 mix HD 6470M a video card can bring about great entertainment properties, but for professional graphics processing with high demand users, compared to used by t-series NVIDIA NVS 4200M professional graphics as demonstrated by nature slightly superior. In addition, compared with the performance difference is even more obvious in materials and workmanship of the fuselage, plastic material shell can also provide a measure of protection, but the overall feeling of security and development are still has gaps, this machine does not provide closed clips believed would make many users feel unpleasant.
Last, although we in stressed the machine performance excellent of while also listed has its and positioning high-end of t series compared to of some insufficient, but considered to its in price aspects and t series compared to nearly 1 time times of price difference, we still had to recognized the machine in price/performance aspects of huge advantage, for no people on behalf of you pay or more focusing on price/performance of user for, this paragraph L421 does is ThinkPad series in the of a good of select.
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