Notebookcheck

Aggiornamento breve del portatile Lenovo IdeaPad Z50-75

Sascha Mölck, Stefanie Voigt, 10/24/2014

Kaveri @ low cost. L'IdeaPad Z50-75 è disponibile per meno di 400 Euro (~$501) senza sistema operativo Windows. Il cliente avrà un processore quad-core, una soluzione dual-graphics AMD, ed un hard drive da 1 TB. In irresistibile affare?

For the original German review, see here.

We tested the Z50 in the form of the Z50-70 (Core i7-4510U, GeForce 840M) only a few weeks ago. Now we have our hands on the Z50-75 sister model equipped with AMD technology. A quad-core processor and dual-graphics solution are inside. With a price of 450 Euros, ~$564 (400 Euros, ~$501, without Windows operating system), the Z50-75 is almost 300 Euros (~$376) cheaper than the Z50-70. Our report reveals whether the Z50-75 can compete with Intel's counterpart.

The IdeaPad is a member of the below 500-Euro (~$627) all-rounders. Many rivals are found in this sector, such as Acer's Aspire E1-572G (Core i5-4200U, Radeon HD 8750M) and Medion's Akoya P6647 (Core i5-4200M, GeForce 825M). The Akoya configuration that we tested is considerably more expensive than its contenders with a price of approximately 600 Euros (~$752). However, the laptop is available with a Pentium 3550M for a price starting at 480 Euros (~$602) in an entry-level version. 

Since both IdeaPads feature an identical build, we will not go in-depth about casing, connectivity, input devices or speakers. The corresponding information can be found in the review of the IdeaPad Z50-70.

Case

There is then a slight difference between the IdeaPad Z50-75 and Z50-70: While the display's back of the Z50-70 features a smooth surface, the Z50-75 has a rippled structure.

Lenovo IdeaPad Z50-75
Lenovo IdeaPad Z50-75
Lenovo IdeaPad Z50-70
Lenovo IdeaPad Z50-70

Display

In contrast to the Full HD screen in the IdeaPad Z50-70, an HD screen (1366x768 pixels) is installed in the Z50-75. That is also the reason why the Z50-70 costs roughly 300 Euros (~$376) more than the Z50-75. The HD screen operates with a brightness of 223.9 cd/m². Although this is not a good rate, it is acceptable in view of the laptop's price. The screens of the Z50-70 (192.3 cd/m²) and Aspire (182.3 cd/m²) achieve lower rates. However, the Full HD screen in the Akoya (290.1 cd/m²) is pleasing.

217
cd/m²
226
cd/m²
234
cd/m²
218
cd/m²
225
cd/m²
238
cd/m²
212
cd/m²
216
cd/m²
229
cd/m²
Distribuzione della luminosità
LG Philips
X-Rite i1Pro 2
Massima: 238 cd/m² Media: 223.9 cd/m²
Distribuzione della luminosità: 89 %
Al centro con la batteria: 225 cd/m²
Contrasto: 536:1 (Nero: 0.42 cd/m²)
ΔE Color 11.59 | 0.6-29.43 Ø6.1
ΔE Greyscale 11.86 | 0.64-98 Ø6.3
39% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.3
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
Screen
-1%
-13%
2%
-9%
Brightness middle
225
202
-10%
195
-13%
319
42%
269
20%
Brightness
224
192
-14%
182
-19%
290
29%
249
11%
Brightness Distribution
89
78
-12%
83
-7%
74
-17%
83
-7%
Black Level *
0.42
0.37
12%
0.47
-12%
0.8
-90%
1.02
-143%
Contrast
536
546
2%
415
-23%
399
-26%
264
-51%
Colorchecker DeltaE2000 *
11.59
10.23
12%
12.28
-6%
10.68
8%
6.7
42%
Greyscale DeltaE2000 *
11.86
10.04
15%
12.94
-9%
12.24
-3%
8.46
29%
Gamma
2.3 96%
2.2 100%
2.65 83%
2.58 85%
2.48 89%
CCT
14580 45%
10347 63%
18956 34%
12660 51%
8658 75%
Color Space (Percent of AdobeRGB 1998)
39
35
-10%
34.1
-13%
66.6
71%
51
31%

* ... Meglio usare valori piccoli

IdeaPad vs. sRGB
IdeaPad vs. sRGB
IdeaPad vs. AdobeRGB
IdeaPad vs. AdobeRGB

Both the contrast of 536:1 and black level of 0.42 cd/m² are also absolutely satisfactory. The screen in the Z50-70 (546:1, 0.37 cd/m²) provides similar rates. Both the Aspire (415:1, 0.47 cd/m²) and Akoya (399:1, 0.8 cd/m²) do a slightly worse job. The IdeaPad's screen cannot reproduce either the AdobeRGB or sRGB color spaces. The coverage rates are 39% (AdobeRGB) and 56% (sRGB).

The average DeltaE 2000 shift is 11.6 in state of delivery. This rate is normal for laptops from this price range. Ideal would be a rate of less than 3. The screen also exhibits a clear bluish cast.

CalMAN - ColorChecker
CalMAN - ColorChecker
CalMAN - Grayscale
CalMAN - Grayscale
CalMAN - Saturation Sweeps
CalMAN - Saturation Sweeps

The IdeaPad is equipped with a simple TN screen, and thus it can only offer limited viewing angles. We did not expect anything else considering the price. Even the considerably more expensive IdeaPad Z50-70 does not have a viewing-angle stable IPS screen. The screen's highly reflective surface also makes reading the screen outdoors extremely difficult. Consequently, outdoor use is only possible in shadowy places.

The IdeaPad outdoors
The IdeaPad outdoors
Viewing angles: IdeaPad Z50-75
Viewing angles: IdeaPad Z50-75

Performance

Lenovo's IdeaPad Z50-75 is a basic all-round laptop. It not only has enough computing power for routine applications but can also smoothly render computer games to a limited degree. Our review sample is available for approximately 450 Euros (~$564) or 400 Euros (~$501) without a Windows operating system. Lenovo has multiple other models in its IdeaPad Z50 lineup.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
HWInfo
HWInfo
GPU Caps
System information: Lenovo IdeaPad Z50-75

Processor

Lenovo installs an A8-7100 APU (Kaveri) from AMD in its IdeaPad. The processor part of the APU clocks with a base speed of 1.8 GHz. It can be accelerated up to 3 GHz via Turbo. The processor is comprised of four CPU cores. The APU's TDP is 19 watts. Additional information and benchmarks relating to AMD's Kaveri APU can be found in our corresponding article.

We could not retrieve the APU's full processing power. The processor performed the single-thread tests of the Cinebench benchmarks with 2.1 to 2.5 GHz, and the multi-thread tests with 1.6 to 1.8 GHz. The APU ran both tests with a consistent 1.8 GHz in battery mode. The multi-thread scores are roughly on par with those of current Haswell Core i3 ULV processors. If the processor could retrieve its full performance, the scores would likely be on the level of the Haswell Core i5 ULV processors. The processor cannot compete with Intel's Core i3 processors in the single-core performance. It is on par with the Haswell Pentium ULV CPUs.

Cinebench R10 Shading 32Bit
4109
Cinebench R10 Shading 64Bit
4255 Points
Cinebench R10 Rendering Single 32Bit
1471
Cinebench R10 Rendering Multiple CPUs 32Bit
4165
Cinebench R10 Rendering Multiple CPUs 64Bit
5763 Points
Cinebench R10 Rendering Single CPUs 64Bit
2047 Points
Cinebench R11.5 CPU Multi 64Bit
1.97 Points
Cinebench R11.5 CPU Single 64Bit
0.54 Points
Cinebench R11.5 OpenGL 64Bit
23.92 fps
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
25.84 fps
Cinebench R15 CPU Multi 64Bit
126 Points
Cinebench R15 CPU Single 64Bit
40 Points
Aiuto
Cinebench R11.5 - CPU Single 64Bit (ordina per valore)
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
0.54 Points ∼22%
Acer Aspire E5-551-T8X3
Radeon R6 (Kaveri), A10-7300, Western Digital Scorpio Blue WD5000LPVX
0.49 Points ∼20% -9%
Packard Bell EasyNote TE69HW-29574G50Mnsk
HD Graphics (Haswell), 2957U, Seagate Momentus Thin ST500LT0 12-9WS142
0.62 Points ∼25% +15%
Acer Extensa 2510-34Z4
HD Graphics 4400, 4030U, Western Digital Scorpio Blue WD5000LPVX
0.79 Points ∼32% +46%
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
0.94 Points ∼39% +74%
HP Compaq 15-a024sg
GeForce 820M, 3110M, HGST Travelstar 5K1000 HTS541010A9E680
0.97 Points ∼40% +80%
Asus X555LN-XO112H
GeForce 840M, 4210U, Toshiba MQ01ABF050
1.13 Points ∼46% +109%
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
1.2 Points ∼49% +122%
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
1.31 Points ∼54% +143%
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
1.37 Points ∼56% +154%
Cinebench R11.5 - CPU Multi 64Bit (ordina per valore)
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
1.97 Points ∼6%
Packard Bell EasyNote TE69HW-29574G50Mnsk
HD Graphics (Haswell), 2957U, Seagate Momentus Thin ST500LT0 12-9WS142
1.2 Points ∼4% -39%
Acer Aspire E5-551-T8X3
Radeon R6 (Kaveri), A10-7300, Western Digital Scorpio Blue WD5000LPVX
1.74 Points ∼5% -12%
Acer Extensa 2510-34Z4
HD Graphics 4400, 4030U, Western Digital Scorpio Blue WD5000LPVX
2.01 Points ∼6% +2%
HP Compaq 15-a024sg
GeForce 820M, 3110M, HGST Travelstar 5K1000 HTS541010A9E680
2.38 Points ∼7% +21%
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
2.51 Points ∼8% +27%
Asus X555LN-XO112H
GeForce 840M, 4210U, Toshiba MQ01ABF050
2.54 Points ∼8% +29%
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
2.89 Points ∼9% +47%
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
3.21 Points ∼10% +63%
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
3.26 Points ∼10% +65%

System Performance

The system generally runs smoothly. However, we could not perform some of our benchmarks. The 3DMark05 and 06 benchmarks crashed right in the middle of testing with error messages. The programs presumably have problems with the dual-graphics. The PCMark 7 and 8 benchmarks caused the laptop to freeze. The laptop first smoothly performed PCMark 7 after we disabled the dual-graphics in the BIOS. This action did not have any effect on the behavior of the PCMark 8 benchmark.

PCMark Vantage Result
4296 punti
PCMark 7 Score
1835 punti
Aiuto
PCMark 7 - Score (ordina per valore)
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
1835 Points ∼20%
Acer Aspire E5-551-T8X3
Radeon R6 (Kaveri), A10-7300, Western Digital Scorpio Blue WD5000LPVX
1723 Points ∼19% -6%
HP Compaq 15-a024sg
GeForce 820M, 3110M, HGST Travelstar 5K1000 HTS541010A9E680
2464 Points ∼27% +34%
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
2711 Points ∼30% +48%
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
2833 Points ∼31% +54%
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
2871 Points ∼31% +56%
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
4023 Points ∼44% +119%

Storage Devices

Owners of an IdeaPad will not run out of storage space very soon. The installed hard drive from Western Digital offers a storage capacity of 1 TB. It spins with 5400 revolutions per minute. CrystalDiskMark recorded a read speed of 101.9 MB/s, and HD Tune delivered an average transfer rate of 84.3 MB/s. Thus, the drive is on par with virtually all currently available 5400 rpm hard drives.

WDC Scorpio Blue WD10JPCX-24UE4T0
Valore Minimo di trasferimento: 46.6 MB/s
Valore Massimo di trasferimento: 112.6 MB/s
Valore Medio di trasferimento: 84.3 MB/s
Tempi di accesso: 17 ms
Burst Rate: 184.6 MB/s
Utilizzo CPU: 5.6 %

Graphics Card

The Radeon R6 M255DX graphics solution is installed in the IdeaPad. It is not a dedicated graphics chip, but a dual graphics solution from AMD. It is comprised of the integrated Radeon R5 (Kaveri) graphics core and the dedicated Radeon R5 M230 GPU. The GPUs operate in a so-called Crossfire array, i.e. both cores can perform the calculation of displayed images. This process is, for example, used in computer games. Only the integrated GPU is used for routine tasks and in battery mode. The user can determine whether single applications are to be performed with the dual-graphics solution in the driver menu. There is no general performance advantage over a dedicated Radeon R5 M230 GPU. The scores and frame rates clearly increase in some benchmarks and games, and in other cases there is no difference. The R6 M255DX graphics solution sometimes reaps in a lower score.

3DMark 03 Standard
14432 punti
3DMark Vantage P Result
5008 punti
3DMark 11 Performance
1857 punti
3DMark Ice Storm Standard Score
26540 punti
3DMark Cloud Gate Standard Score
2663 punti
3DMark Fire Strike Score
518 punti
Aiuto
3DMark 11 - 1280x720 Performance (ordina per valore)
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
1857 Points ∼6%
HP Compaq 15-a024sg
GeForce 820M, 3110M, HGST Travelstar 5K1000 HTS541010A9E680
1351 Points ∼4% -27%
Acer Aspire E5-551-T8X3
Radeon R6 (Kaveri), A10-7300, Western Digital Scorpio Blue WD5000LPVX
1363 Points ∼4% -27%
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
1414 Points ∼5% -24%
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
1885 Points ∼6% +2%
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
1888 Points ∼6% +2%
HP Pavilion 15-p008ng
GeForce 840M, 4210U, HGST Travelstar 5K1000 HTS541075A9E680
2316 Points ∼7% +25%
Asus X555LN-XO112H
GeForce 840M, 4210U, Toshiba MQ01ABF050
2327 Points ∼7% +25%
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
2373 Points ∼8% +28%

Gaming Performance

Just looking at the 3DMark 2011 benchmarks scores indicate that the performance of the installed graphics solution should roughly be on par with a dedicated Radeon HD 8750M GPU. The gaming benchmarks did not confirm this. The IdeaPad rarely, if at all, comes close to a correspondingly equipped laptop. The Z50-75 managed to render most games in a low (to sometimes medium) resolution and low (to sometimes medium) quality settings smoothly. Therefore, it is likely that something will happen in some games in the future providing the drivers are optimized accordingly. The Radeon R6 M255DX graphics solution supports AMD's Mantle interface, and we tested the game Thief with and without Mantle. The frame rates averagely climbed by 23.6% to 18.4 fps (min.), 13.1 fps (med.), 10.1 fps (high) with enabled Mantle. Battlefield 4 also supports Mantle. However, the tool fraps refused to record the frame rates when the Mantle interface was enabled. Consequently, we cannot provide any results for this game.

Buyers looking for an affordable, gaming-suitable laptop will find considerably better alternatives in the 400 to 500 Euro (~$501 to ~$627) price range. For example, the Aspire E1-572G (Core i5-4200U, Radeon HD 8750M). This device is now available for 470 Euros, ~$590 (or 400 Euros, ~$501, without a Windows operating system). Also, entry-level versions of the Akoya P6647 (Core i5-4200M, GeForce 825M) are available for below 500 Euros (~$627).

basso medio alto ultra
The Elder Scrolls V: Skyrim (2011) 37.326.417.3fps
Diablo III (2012) 59.239.732fps
Hitman: Absolution (2012) 19.618.19.3fps
Dead Space 3 (2013) 66.730.724.8fps
Tomb Raider (2013) 70.739.725.5fps
StarCraft II: Heart of the Swarm (2013) 100.344.625.3fps
BioShock Infinite (2013) 42.12419.5fps
Metro: Last Light (2013) 19.216.110.5fps
Company of Heroes 2 (2013) 15.916.19.6fps
Saints Row IV (2013) 19.516.611fps
F1 2013 (2013) 302425fps
Battlefield 4 (2013) 34.221.916.5fps
X-Plane 10.25 (2013) 2615.17.5fps
Thief (2014) 14.110.98.4fps
Wolfenstein: The New Order (2014) 23.622.411.7fps
GRID: Autosport (2014) 66.226.919.2fps
Risen 3: Titan Lords (2014) 26.215.97.9fps
Fifa 15 (2014) 35.829.4fps
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
Tomb Raider
45%
11%
22%
-31%
1366x768 High Preset AA:FX AF:8x
25.5
28.7
13%
23.9
-6%
30.8
21%
16.8
-34%
1366x768 Normal Preset AA:FX AF:4x
39.7
58.8
48%
44
11%
45.5
15%
26.7
-33%
1024x768 Low Preset
70.7
123.3
74%
91.2
29%
92.6
31%
52.6
-26%
StarCraft II: Heart of the Swarm
72%
79%
-18%
1366x768 High AA:on
25.3
41.8
65%
44
74%
20.1
-21%
1366x768 Medium
44.6
79.7
79%
79.1
77%
33.6
-25%
1024x768 Low
100.3
187.2
87%
91.6
-9%
Media totale (Programma / Settaggio)
45% / 45%
42% / 36%
51% / 51%
-25% / -25%

Emissions

System Noise

The fan spins at a low speed with a quiet, consistent noise in idle mode. The fan does not get exceedingly loud during load either. We measured almost equal noise levels of 37 dB(A) during medium load via 3DMark06 and 36.2 dB(A) during full load in the stress test via Furmark and Prime95. That is not surprising since the processor was throttled during the stress test. It overall looks identical in the Aspire; the Akoya produced more noise during load.

Rumorosità

Idle
32.4 / 32.9 / 33.1 dB(A)
HDD
33.2 dB(A)
DVD
37.2 / dB(A)
Sotto carico
37 / 36.4 dB(A)
  red to green bar
 
 
30 dB
silenzioso
40 dB(A)
udibile
50 dB(A)
rumoroso
 
min: dark, med: mid, max: light   Voltcraft sl-320 (15 cm di distanza)

Temperature

The IdeaPad Z50-75 in the stress test
The IdeaPad Z50-75 in the stress test

The GPUs performed the stress test (Prime95 and Furmark run for at least one hour) in the same manner in both AC and battery modes. While the integrated GPU clocked with 200 to 300 MHz, the dedicated GPU ran at full speed (855 MHz). The CPU clocked with 1.2 to 1.4 GHz in AC mode and 1.1 GHz in battery mode. The IdeaPad does not struggle with heatwaves. We measured a maximum temperature of 40 °C on one measuring point even during the stress test. The CPU's throttling is noticed here. Both the Aspire and Akoya reach higher temperatures.

Carico massimo
 36.9 °C37 °C26.5 °C 
 39 °C39.5 °C27 °C 
 32.6 °C35.9 °C30.6 °C 
Massima: 39.5 °C
Media: 33.9 °C
25.8 °C34 °C36 °C
26.2 °C32.8 °C40 °C
29.1 °C29.6 °C31.6 °C
Massima: 40 °C
Media: 31.7 °C
Alimentazione (max)  40.3 °C | Temperatura della stanza 24.1 °C | Voltcraft IR-360
(±) La temperatura media del lato superiore sotto carico massimo e' di 33.9 °C / 93 F, rispetto alla media di 30.9 °C / 88 F per i dispositivi di questa classe Multimedia.
(+) La temperatura massima sul lato superiore è di 39.5 °C / 103 F, rispetto alla media di 36.5 °C / 98 F, che varia da 21.1 a 71 °C per questa classe Multimedia.
(±) Il lato inferiore si riscalda fino ad un massimo di 40 °C / 104 F, rispetto alla media di 38.8 °C / 102 F
(+) In idle, la temperatura media del lato superiore è di 27.1 °C / 81 F, rispetto alla media deld ispositivo di 30.9 °C / 88 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (35.9 °C / 96.6 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 29.1 °C / 84.4 F (-6.8 °C / -12.2 F).

Energy Management

Power Consumption

The idle power consumptions of the IdeaPad and Aspire are identical. The Akoya consumes more power because it is equipped with a standard mobile processor (no ULV). The three comparison devices basically range on a similar level during load. However, the IdeaPad consumed the least power in the stress test because the laptop's CPU is throttled strongly.

Consumo di corrente
Off / Standbydarklight 0.1 / 0.1 Watt
Idledarkmidlight 6.8 / 9.6 / 11.4 Watt
Sotto carico midlight 41.6 / 38.6 Watt
 color bar
Leggenda: min: dark, med: mid, max: light        Voltcraft VC 940

Battery Runtime

The battery in the IdeaPad lasted for 5:11 h in idle mode. The Aspire (9:02 h) achieves a considerably better runtime. Idle mode is ascertained using Battery Eater's Reader's test. The screen is set to its minimum brightness, the energy-saving profile is enabled, and the wireless modules are off. The IdeaPad shut down after 1:14 h in load. The Aspire (1:20 h) is on par with that. The load runtime is determined with Battery Eater's Classic test using maximum screen brightness, the high-performance profile, and enabled radio modules.

The IdeaPad closed the Wi-Fi test after 2:35 h. The Akoya (3:26 h) and the Aspire (4:26 h) last longer. Websites are automatically opened every 40 seconds using the energy-saving profile and a screen brightness of approximately 150 cd/m². We test the video playback time by running the short movie Big Buck Bunny (H.264 encoding, 1920x1080 pixels) in a loop. The energy-saving profile is enabled, the radio modules are disabled and the screen's brightness is set to approximately 150 cd/m². The IdeaPad lasted for 2:20 h here.

In total, the IdeaPad serves with abysmal, no longer contemporary battery runtimes. The IdeaPad Z50-70 sister model achieved twice the runtime in most of our battery tests. That is, however, not least due to the Z50-70's higher battery capacity (41 Wh) in contrast to the Z50-75's (32 Wh).

Autonomia della batteria
Idle (senza WLAN, min luminosità)
5ore 11minuti
Navigazione WiFi
2ore 35minuti
Big Buck Bunny H.264 1080p
2ore 20minuti
Sotto carico (max luminosità)
1ore 14minuti
Lenovo IdeaPad Z50-75
Radeon R6 M255DX, A8-7100, WDC Scorpio Blue WD10JPCX-24UE4T0
Lenovo IdeaPad Z50-70 (59427656)
GeForce 840M, 4510U, Seagate ST1000LM014 Solid State Hybrid Drive
Acer Aspire E1-572G-54204G75Mnkk
Radeon HD 8750M, 4200U, TOSHIBA MQ01ABD075
Medion Akoya P6647 (MD98571)
GeForce 825M, 4200M, Seagate Momentus SpinPoint M8 ST1000LM024 HN-M101MBB
Lenovo G510-59416358
Radeon R5 M230, 4200M, Seagate ST500LM000 Solid State Hybrid Drive
Autonomia della batteria
76%
51%
33%
57%
Reader / Idle
311
672
116%
542
74%
605
95%
H.264
140
WiFi
155
281
81%
266
72%
206
33%
283
83%
Load
74
97
31%
80
8%
68
-8%

Verdict

Il Lenovo IdeaPad Z50-70 è un economico portatile tuttofare da 15.6". Il processore quad-core fornisce abbastanza potenza per le applicazioni da ufficio ed Internet. Inoltre, è possibile usare qualche gioco. Le prestazioni gaming dovrebbero accontentare i giocatori occasionali. L'IdeaPad resta sempre silenzioso e difficilmente si scalda. E' semplice accedere all'hardware grazie ad una grande cover. Lo schermo non vince alcun premio ma è accettabile considerando il prezzo del portatile. La limitata autonomia è da criticare. Siamo abituati a questi risultati per i portatili multimedia che si basano su processori Core i7 e schede grafiche di prima classe. A nostro parere lo Z50-75 avrà difficoltà a trovare clienti in quanto ci sono portatili migliori in questa fascia di prezzo. Dobbiamo citare l'Aspire E1-572G. Questo offre più prestazioni CPU, più potenza per il gaming, maggiore autonomia e schermo matto.

Nota: si tratta di una recensione breve, con alcune sezioni non tradotte, per la versione integrale in inglese, guardate qui.

In review: Lenovo IdeaPad Z50-75. Test model courtesy of Cyberport.de
In review: Lenovo IdeaPad Z50-75. Test model courtesy of Cyberport.de

Specifiche tecniche

Lenovo IdeaPad Z50-75 (IdeaPad Z50 Serie)
Processore
Scheda grafica
AMD Radeon R6 M255DX - 2048 MB, Core: 514 (Radeon R5) // 855 (Radeon R5 M230) MHz, Memoria: 900 MHz, 14.200.1004.0, CrossFire
Memoria
4096 MB 
, DDR3, single-channel, due banchi di memoria (uno occupato)
Schermo
15.6 pollici 16:9, 1366 x 768 pixel, LG Philips, lucido: si
Scheda madre
AMD Bolton
Harddisk
WDC Scorpio Blue WD10JPCX-24UE4T0, 1000 GB 
, 5400 rpm, 860 GB libera
Scheda audio
AMD Hudson-2 High Definition Audio Controller
Porte di connessione
2 USB 2.0, 1 USB 3.0 / 3.1, 1 VGA, 1 HDMI, 1 Kensington Lock, Connessioni Audio: jack audio combo, Lettore schede: SD
Rete
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000/2500/5000MBit/s), Qualcomm Atheros AR956x (b/g/n = Wi-Fi 4), Bluetooth 4.0
Drive ottico
HL-DT-ST DVDRAM GUA0N
Dimensioni
altezza x larghezza x profondità (in mm): 265 x 380 x 26
Batteria
32 Wh ioni di litio, 14.4 V, 2200 mAh
Sistema Operativo
Microsoft Windows 8.1 64 Bit
Camera
Webcam: HD webcam
Altre caratteristiche
Casse: stereo, Tastiera: chiclet, Illuminazione Tastiera: no, Cyberlink PhotoDirector 3, Cyberlink PowerDirector 10, Cyberlink PowerDVD 10, Cyberlink Power2Go, McAfee LiveSafe-Internet Security (trial), MS Office 365 (trial), 24 Mesi Garanzia
Peso
2.5 kg, Alimentazione: 349 gr
Prezzo
549 Euro

 

The display lid features a rippled texture.
The display lid features a rippled texture.
The hinges...
The hinges...
...keep the lid firmly in place.
...keep the lid firmly in place.
The lid's maximum opening angle is approximately 130 degrees.
The lid's maximum opening angle is approximately 130 degrees.
Lenovo's typical AccuType keyboard is on-board.
Lenovo's typical AccuType keyboard is on-board.
A number pad is available.
A number pad is available.
The small orange-colored lettering of the FN keys is barely perceptible.
The small orange-colored lettering of the FN keys is barely perceptible.
The touchpad is encircled by a silver bezel.
The touchpad is encircled by a silver bezel.
The DVD burner read and writes all kinds of DVDs and CDs.
The DVD burner read and writes all kinds of DVDs and CDs.
The speakers are on the laptop's underside.
The speakers are on the laptop's underside.
Three screws secure the maintenance cover.
Three screws secure the maintenance cover.
The hardware can be accessed after removing the cover.
The hardware can be accessed after removing the cover.
Webcam, mics, light sensor.
Webcam, mics, light sensor.
Vent.
Vent.
Power button.
Power button.

Similar Laptops

Notebooks di altri Produttori e/o con differente CPU

Portatili con uguale dimensione dello Schermo e/o peso

Recensione del Portatile Lenovo ThinkPad X1 Extreme (i5, FHD, GTX 1050 Ti Max-Q)
GeForce GTX 1050 Ti Max-Q, Core i5 8300H, 15.6", 1.703 kg
Recensione del Portatile Lenovo ThinkPad X1 Extreme (i7, 4K-HDR, GTX 1050 Ti Max-Q)
GeForce GTX 1050 Ti Max-Q, Core i7 8750H, 15.6", 1.842 kg

Links

  • Manufacturer's information

Compare Prices

Pro

+Silenzioso
+Temperature basse
+Ampia cover di manutenzione
+Generoso lo spazio di archiviazione
 

Contro

-Autonomia scarsa
-Angoli di visuale limitati e tendenza al blu

Shortcut

What we like

The quiet operating noise and low heat development.

What we'd like to see

Better battery runtimes.

What surprises us

Lenovo ships the Z50-75 with a battery that has a lower capacity than the model included for the Z50-70.

The competition

Medion Akoya P6647, Acer Aspire E1-572GAsus X555LN-XO112H, HP Pavilion 15-p008ng, Dell Inspiron 15-5547, Acer Aspire E5-551-T8X3, Lenovo G510, HP Compaq 15-a024sgLenovo IdeaPad Z50-70.

Rating

Lenovo IdeaPad Z50-75 - 09/23/2014 v4(old)
Sascha Mölck

Chassis
71 / 98 → 72%
Tastiera
60%
Dispositivo di puntamento
68%
Connettività
65 / 81 → 80%
Peso
60 / 20-67 → 85%
Batteria
74%
Display
71%
Prestazioni di gioco
63 / 85 → 74%
Prestazioni Applicazioni
54 / 92 → 59%
Temperatura
90%
Rumorosità
87 / 95 → 92%
Audio
50%
Media
68%
71%
Multimedia - Media ponderata
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> Recensioni e prove di notebook, tablets e smartphones > Recensioni e prove > Recensioni e prove > Aggiornamento breve del portatile Lenovo IdeaPad Z50-75
Sascha Mölck, 2014-10-24 (Update: 2014-10-24)