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Face Off: Lenovo ThinkPad Edge E550 vs. Acer Aspire E5 vs. HP ProBook 450 G2

Affordable notebooks for school. It's not easy dropping over $1000 for a thin MacBook or Ultrabook, especially when all you need is something for schoolwork and videos. Instead, these three alternatives will be a little easier on students' wallets.

Back-to-school season is just around the corner for both kids and adults alike as summer draws to a close. Purchasing a new notebook is one way to start the academic year feeling fresh and ready to go.

For this Face Off, we tackle three affordable 15-inch notebooks fit for both schoolwork and multimedia use. These notebooks are for students who don't want to spend $1000 or more on smaller and thinner solutions when there are less expensive alternatives that can do the job just as well.

We encourage users to check out our dedicated review pages below for more data and detailed analyses of each of the three models. This comparison is by no means a replacement, but a condensed aid for those on the fence.

Lenovo ThinkPad E550 Review (E555 model)

Acer Aspire E5-551 Review (E5-551G model)

HP ProBook 450 G2 Review (450 G1 model) (450 G0 model)

Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450
HP ProBook 450

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Case

Notebooks in the $500 to $700 range tend to have full plastic chassis or a combination of both plastic and aluminum to save on costs. The Edge E550 is part of the affordable ThinkPad E series and gives up the signature metal roll cage for an overall lighter weight than its more expensive siblings. Nonetheless, we find the ABS plastic to be rigid for the price with taut hinges. Surfaces still yield and warp with enough applied force and we even discovered some unintentional gaps and flaws on our particular test model. These shouldn't be major issues in classroom or library environments.

The Acer Aspire E5 utilizes a brushed aluminum lid, but is otherwise all black plastic. Twisting the case is a bit too easy for our taste with slight creaking sounds as well. Medium pressure is all it takes to depress the keyboard or outer lid. Otherwise, the hinges are strong up to the 160-degree maximum.

The ProBook 450 G2 gets a small facelift compared to the older 450 G1 model, but ports and features remain largely identical. Like the Aspire E5, the outer lid is aluminum while the rest of the base is plastic. The rubberized outer surface adds a layer of luxury and the overall build quality is very good with no noticeable manufacturing flaws. However, the base can still visibly flex with enough force.

Our size comparison below shows no significant differences between our three models. Instead, their weight differences are much more noteworthy. The Lenovo, Acer, and HP come in at 2.4 kg, 2.5 kg, and 2.1 kg, respectively.

Acer loses this round as its chassis is both heavier and more susceptible to flexing. We prefer the much lighter and better-built ProBook between the Lenovo and HP. There are some weak spots on the HP for sure, but nothing that the Lenovo experiences as well.

Winner: HP ProBook 450 G2

382 mm / 15 inch 256 mm / 10.1 inch 25 mm / 0.984 inch 2.5 kg5.51 lbs377 mm / 14.8 inch 256 mm / 10.1 inch 27 mm / 1.063 inch 2.4 kg5.25 lbs375 mm / 14.8 inch 262.8 mm / 10.3 inch 25.5 mm / 1.004 inch 2.1 kg4.63 lbs

Ports in Comparison

Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450
HP ProBook 450

Connectivity

Physical ports are almost identical between the three models with a few key differences. The Lenovo carries the proprietary OneLink dock for use with OneLink-compatible docking stations. Otherwise, the notebook has an equal number of ports compared to the Acer Aspire E5.

The ProBook comes out on top with its 4x USB ports and 2x storage drives. Users lose out on the OneLink port, but generic USB 3.0 docking stations offer most of what Lenovo's proprietary solutions can bring to the table. The additional storage bay should also come in handy further down the road.

Winner: HP ProBook 450 G2

Ports and Connections

Lenovo ThinkPad Edge E550 Acer Aspire E5 HP ProBook 450 G2
USB 2x USB 3.0, 1x USB 2.0 1x USB 3.0, 2x USB 2.0 2x USB 3.0, 2x USB 2.0
Video-out 1x HDMI, 1x VGA 1x HDMI, 1x VGA 1x HDMI, 1x VGA
Other SD reader, optical drive, 1x 3.5 mm audio, Gigabit LAN, OneLink, Kensington Lock SD reader, optical drive, 1 3.5 mm audio, Gigabit LAN, Kensington Lock SD reader, optical drive, 2x 3.5 mm audio, Gigabit LAN, Kensington Lock
Storage Bays 1x 2.5-inch SATA III 1x 2.5-inch SATA III 1x 2.5-inch SATA III, 1x M.2

Display

Users shouldn't expect exceptional displays at the $500 to $700 price range for 15.6-inch notebooks. All notebooks here have relatively low maximum backlight brightness levels, just average contrast, and generally inaccurate colors out-of-the-box. The matte screens do little to aid in outdoor visibility as the TN panels severely limit viewing angles.

The HP ProBook 450 G2 is especially disappointing in this category due to its higher starting price range. This is a notebook that costs hundreds more than both the E550 or E5-551, yet its display quality is about the same.

Our Lenovo comes out ahead mainly for its higher resolution 1080p display. Multi-tasking students will appreciate the denser pixels and more screen real-estate for better work efficiency. Sub FHD displays, especially at this screen size, are becoming less common on newer notebooks. Display brightness is slightly dimmer on the E550 compared to the 450 G2, but it's a small sacrifice for almost twice the pixel count.

We should note that both the Aspire E5 and ProBook 450 G2 have 1080p options and even touchscreen for the latter. Thus, the E550 is not the definitive winner. Between our three test models, however, the Lenovo is clearly ahead.

Winner: Lenovo ThinkPad Edge E550

Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450 G2
HP ProBook 450 G2
Displays at a Glance

Lenovo ThinkPad Edge E550 Acer Aspire E5 HP ProBook 450 G2
Size 15.6-inch TN 15.6-inch TN 15.6-inch TN
Native Resolution 1920 x 1080 1366 x 768 1366 x 768
Pixel Density 157 PPI 100 PPI 100 PPI
Panel ID AUO B156HTN03.6 AU Optronics AUO47EC AU Optronics B156XW04 V1
Panel Matte Matte Matte
Lenovo ThinkPad Edge E550-20DGS00300Acer Aspire E5-551-T8X3HP ProBook 450 G2 L3Q27EA
Screen
Brightness middle
228
178
254
Brightness
210
179
225
Brightness Distribution
89
94
84
Black Level *
0.688
0.44
0.72
Contrast
331
405
353
Colorchecker DeltaE2000 *
10.04
9.78
10.73
Greyscale DeltaE2000 *
10.65
10.01
11.23
Gamma
2.53 87%
2.06 107%
2.21 100%
CCT
12807 51%
11038 59%
13321 49%
Color Space (Percent of AdobeRGB 1998)
38.8
37
36.2

* ... smaller is better

Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450 G2
HP ProBook 450 G2
Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450 G2
HP ProBook 450 G2

Input Devices

The Chiclet keyboard on the E550 takes queues from the costlier ThinkPad T550 in terms of layout and design. The keys here offer satisfying travel and feedback, but they also feel slightly less firm with more clatter than the keyboards on the more expensive ThinkPad T Series models. The Acer keyboard feels similar with its firm pressure point and travel, but suffers from loud clatter as well. Lastly, the HP is the only one with backlit keys. We find its keyboard to have agreeable feedback and stroke. The keys immediately above the optical drive, however, tend to yield slightly more than on the Acer and Lenovo.

As for the touchpads, there are no major issues with the gliding properties on any of them. Swiping gestures feel a bit more uneven on the Acer, but its lack of any dedicated mouse keys at least provide a bit more surface area to work with compared to the Lenovo and HP. Of particular note is the TrackPoint on the E550, which is only available on costlier Acer and HP business notebooks.

It's a touch call, but we prefer the keyboard layout and feel on the ThinkPad E550 over the Aspire E5 and ProBook 450 G2. Otherwise, the typing experience is very similar between them. Meanwhile, the touchpad on the Lenovo is simply more comfortable out of the three as it closely mimics the popular and exceptional ThinkPad T450s.

Winner: Keyboard -- Lenovo ThinkPad Edge E550

              Touchpad -- Lenovo ThinkPad Edge E550

Performance

CPU Performance

Lenovo, Acer, and HP all offer multiple CPU options beyond what we have here, so this comparison is only between the configurations on hand.

The Broadwell Core i5 CPU in our HP handily outclasses both the Broadwell Core i3 and Kaveri A10-7300. CineBench single-core and multi-core scores for our HP surpass both the Lenovo and Acer by at least 20 or 40 percent. These results are unsurprising given the fact that the Core i3 series is not equipped with Turbo Boost while mobile Kaveri chips are mostly intended to compete with Core i3 processors, let alone the Core i5 series.

See our dedicated CPU pages on the Core i3-5005U, AMD A10-7300, and Core i5-5200U for more comparisons and benchmarks.

Hardware at a Glance

Lenovo ThinkPad Edge E550 Acer Aspire E5 HP ProBook 450 G2
CPU 2.0 GHz Core i3-5005U 1.9 GHz AMD A10-7300 2.2 GHz Core i5-5200U
TDP 15 W 19 W 15 W
RAM 4 GB DDR3 1600 MHz, 2x SODIMM slots 8 GB DDR3L 1600 MHz, 2x SODIMM slots 4 GB DDR3 1600 MHz, 2x SODIMM slots
GPU Intel HD Graphics 5500 AMD Radeon R6 (Kaveri) Intel HD Graphics 5500
Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450 G2
HP ProBook 450 G2
Cinebench R15
CPU Single 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
82 Points ∼38%
Acer Aspire E5-551-T8X3
59 Points ∼27%
HP ProBook 450 G2 L3Q27EA
109 Points ∼50%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
208 Points ∼5%
Acer Aspire E5-551-T8X3
158 Points ∼4%
HP ProBook 450 G2 L3Q27EA
260 Points ∼6%
Cinebench R11.5
CPU Single 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
0.96 Points ∼39%
Acer Aspire E5-551-T8X3
0.67 Points ∼27%
HP ProBook 450 G2 L3Q27EA
1.29 Points ∼53%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2.27 Points ∼5%
Acer Aspire E5-551-T8X3
1.8 Points ∼4%
HP ProBook 450 G2 L3Q27EA
2.86 Points ∼6%
Cinebench R10
Rendering Single CPUs 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
4183 Points ∼40%
Acer Aspire E5-551-T8X3
2853 Points ∼28%
Rendering Multiple CPUs 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
8966 Points ∼12%
Acer Aspire E5-551-T8X3
7247 Points ∼10%
wPrime 2.0x
1024m (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
774.511 s * ∼9%
Acer Aspire E5-551-T8X3
854.95 s * ∼10%
32m (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
24.407 s * ∼5%
Acer Aspire E5-551-T8X3
24.16 s * ∼5%
Super Pi Mod 1.5 XS 32M - --- (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
961.714 Seconds * ∼4%
Acer Aspire E5-551-T8X3
1563.53 Seconds * ∼7%
3DMark
Fire Strike Extreme Physics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
3151 Points ∼11%
1920x1080 Fire Strike Physics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
3250 Points ∼10%
HP ProBook 450 G2 L3Q27EA
4101 Points ∼13%
1280x720 Cloud Gate Standard Physics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2289 Points ∼6%
HP ProBook 450 G2 L3Q27EA
2893 Points ∼7%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
29332 Points ∼34%
1920x1080 Ice Storm Extreme Physics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
25796 Points ∼31%
PCMark 7
System Storage (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
1949 Points ∼27%
Computation (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
11866 Points ∼42%
Acer Aspire E5-551-T8X3
5171 Points ∼18%
Creativity (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
5532 Points ∼38%
Acer Aspire E5-551-T8X3
3437 Points ∼24%
Entertainment (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2595 Points ∼24%
Acer Aspire E5-551-T8X3
2080 Points ∼19%
Productivity (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
1600 Points ∼15%
Acer Aspire E5-551-T8X3
1150 Points ∼11%
Lightweight (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2205 Points ∼30%
Acer Aspire E5-551-T8X3
1529 Points ∼21%
Score (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2784 Points ∼30%
Acer Aspire E5-551-T8X3
1938 Points ∼21%
PCMark 8
Storage Score (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2371 Points ∼47%
Work Score Accelerated v2 (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
3321 Points ∼51%
Acer Aspire E5-551-T8X3
3569 Points ∼55%
HP ProBook 450 G2 L3Q27EA
4125 Points ∼63%
Creative Score Accelerated v2 (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2870 Points ∼27%
Acer Aspire E5-551-T8X3
2781 Points ∼26%
HP ProBook 450 G2 L3Q27EA
3377 Points ∼32%
Home Score Accelerated v2 (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
2544 Points ∼42%
Acer Aspire E5-551-T8X3
2657 Points ∼44%
HP ProBook 450 G2 L3Q27EA
2973 Points ∼49%
X264 HD Benchmark 4.0
Pass 2 (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
12.96 fps ∼0%
Acer Aspire E5-551-T8X3
12.14 fps ∼0%
Pass 1 (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
69.7 fps ∼26%
Acer Aspire E5-551-T8X3
62.55 fps ∼23%

* ... smaller is better

GPU Performance

AMD APUs typically make up for their poorer CPU performances by having stronger graphics cores. The A10-7300 shows exactly this as the integrated Radeon R6 GPU is roughly 50 percent faster than the Intel HD 5500 in synthetic GPU benchmarks. This includes both 3DMark 11 and 3DMark 2013, though performance gains are not as wide on CineBench. The more powerful Radeon graphics core is also partly responsible for the slightly higher TDP of the A10-7300 compared to the ULV Core i3 and Core i5.

3DMark 11 - 1280x720 Performance GPU (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
825 Points ∼2%
Acer Aspire E5-551-T8X3
1290 Points ∼3%
HP ProBook 450 G2 L3Q27EA
873 Points ∼2%
3DMark
Fire Strike Extreme Graphics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
259 Points ∼1%
1920x1080 Fire Strike Graphics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
581 Points ∼1%
Acer Aspire E5-551-T8X3
940 Points ∼2%
HP ProBook 450 G2 L3Q27EA
602 Points ∼1%
1280x720 Cloud Gate Standard Graphics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
4854 Points ∼3%
Acer Aspire E5-551-T8X3
6523 Points ∼4%
HP ProBook 450 G2 L3Q27EA
5169 Points ∼3%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
52244 Points ∼10%
1920x1080 Ice Storm Extreme Graphics (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
27084 Points ∼4%
Cinebench R11.5 - OpenGL 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
15.62 fps ∼9%
Acer Aspire E5-551-T8X3
21.25 fps ∼12%
HP ProBook 450 G2 L3Q27EA
17.33 fps ∼10%
Cinebench R15 - OpenGL 64Bit (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
21.6 fps ∼9%
Acer Aspire E5-551-T8X3
22.53 fps ∼9%
HP ProBook 450 G2 L3Q27EA
23.16 fps ∼9%

Gaming Performance

The raw graphics power of the integrated Radeon R6 carries over to real-world gaming performance. Unfortunately, the gains are not as high as the 3DMark numbers suggest. In Tomb Raider, our Acer E5 outperforms both the Lenovo and HP by about 30 to 40 percent depending on the graphics settings. Actual frame rates are still below 30 FPS even on the low native 768p resolution of the Acer. Gaming is noticeably better on the AMD solution, but not good enough for most of today's 3D titles.

See our dedicated GPU pages for the Intel HD 5500 and AMD Radeon R6 for more comparisons and benchmarks.

Tomb Raider
1366x768 High Preset AA:FX AF:8x (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
13.2 fps ∼3%
Acer Aspire E5-551-T8X3
19 fps ∼4%
HP ProBook 450 G2 L3Q27EA
13.5 fps ∼3%
1366x768 Normal Preset AA:FX AF:4x (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
20.8 fps ∼4%
Acer Aspire E5-551-T8X3
26.9 fps ∼5%
HP ProBook 450 G2 L3Q27EA
21 fps ∼4%
1024x768 Low Preset (sort by value)
Lenovo ThinkPad Edge E550-20DGS00300
40.2 fps ∼6%
Acer Aspire E5-551-T8X3
51.6 fps ∼8%
HP ProBook 450 G2 L3Q27EA
40.8 fps ∼7%

Stress Test

To test system stability, we run both Prime95 and FurMark to simulate maximum stress. These unrealistic conditions do not represent daily workloads, but are instead meant to put both the CPU and GPU at 100 percent capacity. If the notebook remains stable, then you can be sure it can handle any other tasks without major hardware failures.

The AMD hardware in the Acer E5 suffers the most from our throttling test with both higher core temperatures and generally lower stable core clocks compared to the Broadwell cores in the Lenovo and HP. This is made more disappointing by the high theoretical 3.2 GHz Turbo Core of the A10-7300 APU. Still, our recorded maximum core temperature of 69 C is still quite low compared to 90 - 95 C on high-performance CPUs with higher TDP values.

The ProBook comes out on top for its higher and more stable GPU and CPU core clocks than both the Acer and Lenovo.

Winner: HP ProBook 450 G2

Lenovo ThinkPad Edge E550
Lenovo ThinkPad Edge E550
Acer Aspire E5
Acer Aspire E5
HP ProBook 450 G2
HP ProBook 450 G2
CPU and GPU Clock Rates Under Stress

Lenovo ThinkPad Edge E550 Acer Aspire E5 HP ProBook 450 G2
Rated GPU Core Clock (MHz) 300 - 850 533 300 - 900
Stable GPU Core Clock on FurMark (MHz) ~750 ~282 ~750 - 800
Rated CPU Core Clock (GHz) 2.0 1.9 2.2
Stable CPU Core Clock on Prime95 (GHz) 1.0 1.1 1.4 - 1.6
Maximum CPU temperature 54 C 69 C 55 C

Emissions

System Noise & Temperature

Put an ultra-low voltage processor into a large 15.6-inch chassis with no dedicated graphics and you will get one of the quietest notebooks around. The ProBook 450 G2, Edge E550, and Aspire E5-551 are some of the most silent notebooks you can get. When idling or under very low loads, the fans remain inactive and the mechanical drives themselves become audible instead.

Minimum and maximum fan noises are almost identical between our systems. The high of about 34 dB(A) is essentially the minimum for many powerful ultrathin notebooks and gaming notebooks.

Likewise, surface temperatures are very stable regardless of system loads. Hot spots do form, but average surface temperatures rise by just a few degrees C between minimum and maximum loads.

At face value, there are no losers in this category since the three notebooks perform extraordinarily well. However, we give the edge to the 450 G2 as the notebook experiences fewer hot spots under high loads. We were able to measure surface temperatures of up to 39 C on the Aspire, while the ThinkPad becomes warmer around the keyboard and palm rests than the HP in comparison.

Winner: HP ProBook 450 G2

Average Fan Noise and Surface Temperature

Lenovo ThinkPad Edge E550 Acer Aspire E5 HP ProBook 450 G2
Fan Noise when idling 31.3 dB(A) 29.4 dB(A) 28.9 dB(A)
Fan Noise under high loads 33.8 dB(A) 33.4 dB(A) 34.3 dB(A)
Average surface temperature when idling 27.3 C 29.4 C 25.6 C
Average surface temperature under high loads 28.2 C 31.5 C 27.0 C

Battery Life

All battery packs on the three notebooks are easily removable from the rear. It's a small feature that is all but missing on most Ultrabooks and other popular consumer notebooks.

The ProBook 450 G2 has the longest WiFi runtime at just over 450 minutes compared to the Acer and Lenovo under similar testing conditions. This is made more noteworthy by the fact that the HP carries a smaller capacity 40 Wh battery and more powerful CPU out of the three notebooks. 

Winner: HP ProBook 450 G2

Lenovo ThinkPad Edge E550-20DGS00300
48 Wh
Acer Aspire E5-551-T8X3
56 Wh
HP ProBook 450 G2 L3Q27EA
40 Wh
Battery Runtime
Reader / Idle
748
481
WiFi
395
280
456
WiFi v1.3
310
Load
128
120

Verdict

The Hp ProBook 450 G2 is the longer-lasting and lighter home office notebook.
The Hp ProBook 450 G2 is the longer-lasting and lighter home office notebook.

The AMD-equipped Acer Aspire E5 can be quickly crossed off of our list for its under-performing processor and battery life compared to the Lenovo and HP. Even if we had used Intel hardware instead, the average build quality and dim backlight brightness on the notebook itself are hard to ignore. Users who prefer our Acer configuration will get tangibly better graphics performance, but we feel that users can do better with low-end Optimus notebooks if budget gaming is a concern.

It's a tougher call between the Edge E550 and ProBook 450 G2. They both have their respective imperfections, but at least the latter feels better built while remaining lighter and even slightly thinner. Unfortunately, its 768p resolution is a bit of a disappointment, so it is recommended to configure with 1080p to take better advantage of the sizable 15.6-inch screen.

Lenovo offers the better keyboard and touchpad alongside the proprietary OneLink port should users want to spend more on an optional docking station. The E series will unfortunately always be a shadow of the more popular ThinkPad T series, but the E550 feels balanced nonetheless considering the price.

Users willing to spend a bit more on the ProBook will appreciate its solid construction and longevity. Otherwise, the Edge E550 can cover the demands of most multimedia and university work.

Buy Lenovo ThinkPad E550

Buy Acer Aspire E5-551

Buy HP ProBook 450 G2

See more quick comparisons in our Face Off series:

Lenovo ThinkPad Edge E550Acer Aspire E5-551HP ProBook 450 G2

+ Low fan noise

+ Bright display backlight

+ Great keyboard and touchpad

+ slightly larger Directional keys

+ OneLink docking port

+ TrackPoint

Low fan noise

+ Faster graphics performance

Thinner and lighter

+ Low fan noise

+ Relatively strong chassis

+ Brighter display backlight

+ 4x USB, 2x storage bays

+ Longer battery life

+ Fingerprint reader

- Dimmer display backlight than the ProBook

- Slightly weaker chassis

- Heavier

- Shorter battery life

- Weaker build quality

- Slower and warmer AMD processor

- Lower display backlight

- No TrackPoint

- Small Directional keys

- No TrackPoint

- Costlier

- Small Directional keys

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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Face Off: Lenovo ThinkPad Edge E550 vs. Acer Aspire E5 vs. HP ProBook 450 G2
Allen Ngo, 2015-07-28 (Update: 2019-04-30)
Allen Ngo
Allen Ngo - US Editor in Chief
After graduating with a B.S. in environmental hydrodynamics from the University of California, I studied reactor physics to become licensed by the U.S. NRC to operate nuclear reactors. There's a striking level of appreciation you gain for everyday consumer electronics after working with modern nuclear reactivity systems astonishingly powered by computers from the 80s. When I'm not managing day-to-day activities and US review articles on Notebookcheck, you can catch me following the eSports scene and the latest gaming news.