HP ProBook 450 جزو برترین و مقرون به صرفهترین لپتاپهای اداری / مهندسی بوده و در این بازه قیمتی تقریبا بی رقیب می باشد.
به عنوان یکی از پیشروهای صنعت تولید کامپیوترهای شخصی، لپتاپهای ساخت کمپانی HP، به خصوص لپتاپهای اداری/مهندسی این کمپانی، همواره جزو برترین و با کیفیتترینهای بازار بودهاند. سال گذشته، این کمپانی نسل جدیدی از لپتاپهای اداری و حرفهای خود را با نام ProBook 450 معرفی نمود. سری ProBook 450 را در حقیقت میتوان جایگزین مدل های ProBook 4540s دانست. لپتاپهایی فوق حرفهای با صفحهی نمایش 15.6 اینچی با روکشی مات، بدنهای با روکشی از جنس آلومینیوم مات و کیفیت ساخت عالی، که به راحتی میتوانند کلیهی نیازهای کاربران حرفهای اداری و حتی خانگی را پوشش دهند. این لپتاپها نزدیک به 23 میلیمتر ضخامت داشته و وزنی معادل 2.3 کیلوگرم دارند که برای یک لپتاپ 15.6 اینچی کاملا مناسب است، بنابراین مشکل خاصی بابت جابجایی و حملونقل آنها نخواهید داشت. از لحاظ امکانات ارتباطی، سری 450 بسیار کاملاند. چهار عدد پورت USB، خروجیهای تصویری VGA و HDMI، پورت شبکهی Gigabit LAN، ورودی و خروجی صوتی و یک کارت خوان SD بر روی لبههای این دستگاه قرار گرفتهاند. به علاوه، بعضی از مدل های این لپتاپها، به حسگر اثر انگشت نیز مجهز شدهاند. این لپتاپها دارای کیبورد و تاچ پد بسیار خوبی میباشند که این یک مزیت بزرگ برای کاربران اداری محسوب میگردد. تمامی اعضای خانوادهی ProBook 450 از نسل سوم و چهارم پردازندههای مرکزی Intel Core و کارتهای گرافیکی قدرتمند AMD Radeon سری HD 8750 و HD 8670 استفاده میکنند. بنابراین تنوع سختافزاری این سری بسیار زیاد است و کاربران میتوانند با توجه به میزان قدرت مورد نیاز و همچنین محدودیت بودجهی خود، مدل مورد نظر را انتخاب نمایند. سیستم خنککنندهی این لپتاپها نیز بسیار بهینه میباشد و در عین کم صدایی، بدنهی آلومینیومی را کاملا خنک نگاه میدارد. در نهایت، باتری لیتیوم-یون این لپتاپها، بسته به نوع پردازندهی مرکزی و کارت گرافیکی، شارژدهی لازم برای 2:30 تا 3:00 ساعت مرورگری اینترنت با Wi-Fi را فراهم سازد که میزان رضایت بخشیست. تمامی اینها در کنار قیمت مناسب، باعث شده تا HP ProBook 450 جزو برترین و مقرون به صرفهترین لپتاپهای اداری/مهندسی بوده و در این بازهی قیمتی تقریبا بیرقیب باشد.
ProBook is one of the most respected and popular lines among users Laptop.bg, and we pay attention it deserves each of its updates. They generally consist mainly of replacing the generation of internal components and minor cosmetic “touch”, but this time HP decided to open a new page in its history. Without offering anything particularly revolutionary, the company intends to facilitate his fans, unified product design so that hem it reflects their aesthetic requirements, yet is easily recognizable among the hundreds of competitors in the market.
This is the right time to reduce the size of the hull, and with all this, ProBook and not abandoned their core – set components in them should provide the required performance for all kinds of activities. Of course there is no way to include a heavy 3D games, but the audience is not the line gaming. Configuration with which you have nevertheless is equipped with discrete AMD Radeon graphics card series 8000M.
We can not call it a surprise, but pleasant news is the fact that Hewlett-Packard continue to maintain and pricing policy, new proposals remain in the low to medium price range.
As usual, ProBook comes with a substantial amount of the box, and the reason is the presence of a beautiful and comfortable bag it came as a gift to the newly purchased laptop. Good initiative of HP, we find even in their cheapest models. Furthermore bag and laptop in the box of 450 ProBook are several Instructional books and charger, weighing 506 grams.
Design and construction
We begin with the size and weight – two aspects in which 450 ProBook boasts versus its predecessor. While the 4540s is 34.7 mm thick and weighs 2549 grams, ProBook 450 has a thickness of 30.3 mm and a weight of 2409 grams. In other words, HP achieved 13% lower profile and 6% less weight.
As for the hull strength, besides being a solid and stable, they are indeed his predecessors, this time the notebook is with Duraflex coating that ensures a very low level of wear (you must be aware of the awkward moment when the plastic notebook you scrubbed) and safety temperature.
The cover is black, matt and rubber, and in its center, also in black, but this time shiny, stands the manufacturer’s logo. The interior is decorated in a combination of black and metallic gray. The screen has a relatively thin frame, and the keyboard is the ‘island’ type (Island Style) with large and flat keys. NumPad numeric keypad is also available, which makes the laptop with a bit more convenient for businessmen, but something you may not particularly like is the lack of separation between the arrows and the rest of the keys, and the small size of the upper and lower arrow.
The trackpad is slightly concave base and two large physically separate button, and 13.2 inches to the right of it stands fingerprint reader – convenient module that you can use if you do not want to remember your passwords.
In the top left of the front panel above the “Escape” button is Power-key and off the machine. To his right, almost the entire length have a large network covering the built-in stereo speakers, and after it are two buttons control the activity of the Wi-Fi module and sound system. When they work, the symbol buttons lit in white, and where they work – orange.
On the left side of the hull are DC-in input charger vents, VGA output for connection to an external monitor, Ethernet LAN port, HDMI and two USB 3.0 ports. Front stand only LED indicator for hard drive activity and a slot for multimedia cards. Right there are audio jacks for microphone and headphones, two USB ports (this time 2.0), optical drive and Kensington Lock locking system. Behind the machine is completely cleared.
Display and sound
The display on the HP ProBook 450 G0 e 15.6-inch (39.6 cm) with a resolution of 1366 x 768 WLED backlight. The calibration device reported a maximum brightness of 238 tested laptop cd/m2 (224 cd/m2, considering the spread to). Even in well-lit sun room for normal operation are sufficient 200 cd/m2. No apparent uniformity of the backlight in any of the four corners of the panel.
The panel has a TN matrix and anti-glare matte finish. The first microscopic images shown focused on sub-pixel and the second – on the cover.
Displays produced TN technology are relatively small viewing angles, and since any choice of laptop is made on the basis of decisive advantages against a compromise, providing, as always, relevant images for visual assessment.
Assessment rendering using a calibration device, creating a color profile. Since the display is not intended for image processing, and business tasks for optimal brightness value in this test the 160 cd/m2 and white point D65. After profiling test for variations in color rendering – Delta E. very well to the values below 2.00 and smaller than one indicate deviations virtually indistinguishable by the human eye.
For the sake of objectivity perform everything again and a second model calibrator.
Srednata Delta E value to almost coincide with both measurements – 5.57 and 5.09 in first in the second, and is relatively low for this type of display (lower is better). In case this is a perfectly acceptable value.
Scope of the color space (CIE)
After profiling, the monitor of the coating reached 55% sRGB and 41% of the Adobe RGB, as shown in the graph.
55% coverage of sRGB is that the display will not show just a lot of colors that may be encountered on the Web.
As already mentioned, the laptop is equipped with a classic display with TN matrix and as such, has the typical advantages and disadvantages of this type – economy as power consumption, low cost, small response time, acceptable but not perfect color rendering and narrow space. All this is largely a wise decision, considering the segment in which this laptop is positioned – to perform tasks in support of small business.
Due to its low price, the laptop itself leaves open the possibility of buying large vashen monitor – if you decide to deal with image processing anyway so you will need.
With a very clean, clear and loud sound even surprise DTS Sound + audio system of the new ProBook 450.
Technical characteristics, see below relate only to the specific configuration that we tested in this review. It is possible the same series laptops have different specifications.
|Intel Core i5-3230M (2 core, 2.60 – 3.20 GHz, 3MB cache)|
|4GB (1x 4096MB) – DDR3, 1600Mhz|
|750GB SATA (5400 Turnover / minute)|
|AMD Radeon HD 8750M (2GB DDR3)|
|15.6-inch (39.62 cm) – 1366 x 768 pixels, matt|
|Double-layer DVD burner|
|Wi-Fi 802.11b/g/n, LAN (10/100/1000), Bluetooth 4.0|
|2x USB 2.0 ports, 2x USB 3.0, HDMI, VGA audio gnzeda headphone and microphone, HD Webcam, Media Card Reader, Kensington Lock locking system|
|6-cell (47 WHr)|
|2409 g (with battery)|
Installation and drivers
If your HP ProBook does not have a preinstalled operating system, or for some reason you need drivers, you can find these in the official support site of the company:
Latest drivers for Radeon video card you can download it from here as not available (at the time of writing this article) to the site of HP:
And battery consumption
Battery HP ProBook 450 G0 has a capacity 4200 mAh rated voltage 10.8 V. This corresponds to 45 Wh stored energy.
Before we begin the actual test battery, tune up your computer screen brightness of 120 cd/m2 – the goal is to level the playing field for all notebooks that match. Using Power Saver mode operating system.
We start with our classic test for surfing the Internet, we use a specially designed script that automatically flip through about 70 popular Bulgarian and foreign sites, some of which contain Flash ads. Under these conditions, ProBook 450 lasts 253 minutes (4 hours and 13 minutes), which is a pretty good result, while indispensable for business notebook.
Although it is designed to work, it is conceivable model owners wish to spend a moment of their duties. As already mentioned, the sound system will be helpful, but it is interesting to know how long they can watch a movie on a single charge of the battery. For this test we use 720p HD video.
HP ProBook 450 lasts 254 minutes (4 hours and 14 minutes) in playback mode – almost identical result with this test when surfing the Internet. 254 minutes you will be enough to watch two relatively long movie, even then will remain “battery.”
Our last test was in 3D game making use of Metro: Last Light, at minimum graphics settings and a resolution of 1366 x 768 pixels. As usual, this benchmark was the most grueling and managed to consume the battery capacity of only 90 minutes (1 hour and 30 minutes).
The power supply of the laptop works with alternating current and voltages from 100 to 240 volts at mains frequency 50 to 60 Hz. Power output is 90 watts (4.62 A DC voltage at 19.5 V). Consumption in idle mode is 2.6 watt. The power consumption when using the power already charged battery is about 20 watts, which means approximately 3 hours to 1 penny financial cost of electricity.
Hard Drive / Solid State Drive
In our test configuration, ProBook 450 used hard drive Western Digital Scorpio Blue 750GB of capacity and speed of 5400 rev / min. In sequential read, tested hard drive is 98 MB / sec and continuous shots – 96 MB / sec.
CPU and RAM memory
Intel Core i5-3230M processor is the midrange announced in the first quarter of 2012. It is part of the ” Ivy Bridge “generation and operates with a base clock speed of 2.6GHz. Both cores, however, can overclock when you need more performance, as when using both at once, the frequency may reach 3GHz, while using only one – up to 3.2GHz.
The chip also features 128KB of cache first level, 512KB cache second level cache and 3MV third level. Core i5-3230M e made a 22-nanometer manufacturing process, there is room for a built-in Intel HD Graphics 4000 graphics controller. It has a base frequency of 650 MHz, as Turbo Boost can increase its frequency to 1100MHz. Consumption of the whole chip is 35 watts and the maximum operating temperature is 105 degrees.
Intel Core i5-3230M supports TurboBoost (base increases processor frequency when needed), HyperThreading (emulated a virtual core for each such real), PCI Express 3.0, up to 32GB DDR3/L/-RS 1333/1600 memory and SSE4 instructions .
Place which is Core i5-3230M in our list of processors you can see here:
The results of all laptops with this processor, information and the opportunity to comment will receive a special page in the model:
RAM memory in the specific configuration is located on a 4-gigabyte card, operating at a frequency of 1600 Mhz.
HP ProBook 450
Lenovo ThinkPad Edge E530
Dell Inspiron 15 (3521)
Lenovo IdeaPad Z500
Sony VAIO E
Acer Aspire V3-571G
|HP ProBook 450||Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 4GB RAM, AMD Radeon HD 8750M (2GB DDR3)||2.99|
|Lenovo ThinkPad Edge E530||Intel Core i5-3210M (2 core, 2.50 – 3.10GHz), 4GB RAM, Intel HD Graphics 4000 (shared memory)||2.91|
|Dell Inspiron 15 (3521)||Intel Core i5-3317U (2-core, 1.70 – 2.60GHz), 8GB RAM, AMD Radeon HD 8730M (2GB DDR3)||2.41|
|Lenovo IdeaPad Z500||Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 8GB RAM, NVIDIA GeForce GT 635M (2GB DDR3)||3.01|
|Sony VAIO E||Intel Core i5-3210M (2 core, 2.50 – 3.10GHz), 4GB RAM, AMD Radeon HD 7650M (1GB DDR3)||2.91|
|Acer Aspire V3-571G||Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 8GB RAM, NVIDIA GeForce 710M (2GB DDR3)||3.00|
Fritz e benchmark reflecting performance in calculating chess moves. Intel Core i5-3230M handle 5.757 million moves per second. One of the most powerful computers in the world, Deep (er) Blue reached a speed of 200 million positions per second, in 1997, when defeated world champion Garry Kasparov 3.5 to 2.5.
AMD Radeon HD 8750M, codenamed “Mars PRO” is a graphic chip midrange announced early in the second quarter of 2012. It is part of the GCN (Graphics Core Next) Generation and e made on 28nm production process. Its core consists of 384 Radeon cores.
The reference frequency is uniform for all the cores, as it is 620MHz, but thanks to the optional Turbo clock, depending on whether the cooling of the laptop allows, it can be raised to the theoretical 25%, reaching 775MHz ..
The chip also features a 128-bit memory bus and can be found in several modifications with DDR3 or GDDR5 memory. AMD Radeon HD 8750M supports DirectX 11.1, Pixel Shader 5.0, OpenCL 1.1 and OpenGL 4.2 technology. Transfer rate between the GPU and video memory of up to 64GB per second.
Latest drivers for Radeon HD 8750M can be downloaded from here:
The place where is AMD Radeon HD 8750M (2GB DDR3) in our list of video you can see here:
The results of all laptops with model information and the opportunity to comment will get here:
HP ProBook 450
Lenovo ThinkPad Edge E530
Dell Inspiron 15 (3521)
Lenovo IdeaPad Z500
Sony VAIO E
Acer Aspire V3-571G
|HP ProBook 450||Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 4GB RAM, AMD Radeon HD 8750M (2GB DDR3)||9232|
|Lenovo ThinkPad Edge E530||Intel Core i5-3210M (2 core, 2.50 – 3.10GHz), 4GB RAM, Intel HD Graphics 4000 (shared memory)||3839|
|Dell Inspiron 15 (3521)||Intel Core i5-3317U (2-core, 1.70 – 2.60GHz), 8GB RAM, AMD Radeon HD 8730M (2GB DDR3)||4758|
|Lenovo IdeaPad Z500||Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 8GB RAM, NVIDIA GeForce GT 635M (2GB DDR3)|
|Sony VAIO E||Intel Core i5-3210M (2 core, 2.50 – 3.10GHz), 4GB RAM, AMD Radeon HD 7650M (1GB DDR3)||4890|
|Intel Core i5-3230M (2 core, 2.60 – 3.20GHz), 8GB RAM, NVIDIA GeForce 710M (2GB DDR3)||5214|