Notebookcheck

Breve Análise do Portátil LG Gram 15Z980 (i7-8550U, Full-HD)

J. Simon Leitner, Alexander Fagot (traduzido por Ricardo Soto), 08/15/2018

Super featherweight. Enquanto muitos fabricantes competem sobre quem pode criar o menor e mais fino portátil, a série LG Gram promete ser a mais leve. O novo LG Gram 15 pesa pouco mais de um quilo (~2,2 libras), que é um dos portáteis de 15 polegadas mais leves atualmente no mercado. Descubra nesta análise o que mais o LG Gram 15 oferece além do seu peso, e quais as limitações que existem com um dispositivo de 15 polegadas que é leve.

LG Gram 15Z980-B.AA78B (Gram Serie)
Memória
16384 MB 
, DDR4-2400 MHz: Dual Channel. 17-17-17-39 CR2
Pantalha
15.6 polegadas 16:9, 1920 x 1080 pixel 141 PPI, LP156WF9-SPN1, IPS LED, Brilhante: sim
Disco rígido
SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF), 512 GB 
Conexões
3 USB 3.0, 1 USB 3.1 Gen2, 1 Thunderbolt, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, Conexões Audio: Conector para fones de 3,5 mm, Card Reader: MicroSD, 1 Leitor de Impressões Digitais
Funcionamento em rede
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter (a/b/g/n/ac), Bluetooth 4.1
Tamanho
altura x largura x profundidade (em mm): 17 x 358 x 228
Bateria
72 Wh Lítio-Polímero, Quatro células
Sistema Operativo
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: HD Webcam
Características adicionais
Alto falantes: Stereo 2 x 1.5 W , Teclado: Chiclet, Iluminação do Teclado: sim, 12 Meses Garantia
peso
1.103 kg, Suprimento de energia: 342 g

 

Size Comparison

Right-hand side: microSD card slot, Headphone jack, 2 x USB 3.0 Type-A, Kensington Lock
Right-hand side: microSD card slot, Headphone jack, 2 x USB 3.0 Type-A, Kensington Lock
Left-hand side: Proprietary power connector, USB 3.0 Type-A, HDMI, USB Type-C (Thunderbolt 3)
Left-hand side: Proprietary power connector, USB 3.0 Type-A, HDMI, USB Type-C (Thunderbolt 3)
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
  (Toshiba Exceria Pro M501)
191.2 MB/s ∼100% +152%
LG Gram 15Z980-B.AA78B
  (Toshiba Exceria Pro M501 64BG)
75.9 MB/s ∼40%
Average of class Subnotebook
  (8 - 186, n=90)
62.7 MB/s ∼33% -17%
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
  (Toshiba Exceria Pro M501)
223.9 MB/s ∼100% +159%
LG Gram 15Z980-B.AA78B
  (Toshiba Exceria Pro M501 64BG)
86.5 MB/s ∼39%
Average of class Subnotebook
  (17.7 - 251, n=90)
83.8 MB/s ∼37% -3%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Dual Band Wireless-AC 8265
633 MBit/s ∼100% +4%
LG Gram 15Z980-B.AA78B
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
606 MBit/s ∼96%
Asus ASUSPRO B9440UA-GV0100T
Intel Dual Band Wireless-AC 8260
578 MBit/s ∼91% -5%
Average of class Subnotebook
  (71 - 950, n=75)
535 MBit/s ∼85% -12%
Asus Zenbook 3 Deluxe UX490UA
Intel Dual Band Wireless-AC 8260
521 MBit/s ∼82% -14%
Acer Swift 5 SF514-52T-59HY
Intel Dual Band Wireless-AC 7265
493 MBit/s ∼78% -19%
iperf3 Client (transmit) TCP 1 m 4M x10
Asus Zenbook 3 Deluxe UX490UA
Intel Dual Band Wireless-AC 8260
647 MBit/s ∼100% +20%
LG Gram 15Z980-B.AA78B
Intel 8265 Tri-Band WiFi (Oak Peak) Network Adapter
540 MBit/s ∼83%
Average of class Subnotebook
  (72 - 949, n=75)
521 MBit/s ∼81% -4%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Dual Band Wireless-AC 8265
511 MBit/s ∼79% -5%
Acer Swift 5 SF514-52T-59HY
Intel Dual Band Wireless-AC 7265
511 MBit/s ∼79% -5%
Asus ASUSPRO B9440UA-GV0100T
Intel Dual Band Wireless-AC 8260
463 MBit/s ∼72% -14%
342
cd/m²
339
cd/m²
353
cd/m²
324
cd/m²
349
cd/m²
340
cd/m²
296
cd/m²
310
cd/m²
326
cd/m²
Distribuição do brilho
X-Rite i1Pro 2
Máximo: 353 cd/m² Médio: 331 cd/m² Minimum: 22.6 cd/m²
iluminação: 84 %
iluminação com acumulador: 273 cd/m²
Contraste: 1091:1 (Preto: 0.32 cd/m²)
ΔE Color 3.1 | 0.4-29.43 Ø6.3, calibrated: 1.5
ΔE Greyscale 3.3 | 0.64-98 Ø6.5
98.2% sRGB (Calman 2D) 96.05% sRGB (Argyll 3D) 61.46% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.16
LG Gram 15Z980-B.AA78B
LP156WF9-SPN1, , 1920x1080, 15.6
Acer Swift 5 SF514-52T-59HY
AU Optronics AUO203D, , 1920x1080, 14
Asus Zenbook 3 Deluxe UX490UA
AU Optronics AUO383D / B140HAN03.8, , 1920x1080, 14
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
B140QAN02.0, , 2560x1440, 14
Asus ASUSPRO B9440UA-GV0100T
AU Optronics AUO353D / B140HAN03.5, , 1920x1080, 14
Response Times
-3%
6%
-59%
-36%
Response Time Grey 50% / Grey 80% *
34.3 (16.4, 17.9)
37 (17, 20)
-8%
24 (12, 12)
30%
59.2 (28.4, 30.8)
-73%
48.8 (18, 30.8)
-42%
Response Time Black / White *
23.7 (13.1, 10.6)
23 (13, 10)
3%
28 (18, 10)
-18%
34.4 (16.4, 18)
-45%
30.8 (8, 22.8)
-30%
PWM Frequency
Screen
-21%
-7%
30%
-44%
Brightness middle
349
254
-27%
337
-3%
578
66%
319
-9%
Brightness
331
231
-30%
295
-11%
533
61%
294
-11%
Brightness Distribution
84
86
2%
81
-4%
84
0%
87
4%
Black Level *
0.32
0.25
22%
0.21
34%
0.38
-19%
0.26
19%
Contrast
1091
1016
-7%
1605
47%
1521
39%
1227
12%
Colorchecker DeltaE2000 *
3.1
3.85
-24%
4.89
-58%
1.9
39%
7.1
-129%
Colorchecker DeltaE2000 max. *
6.6
7.05
-7%
8.43
-28%
3.8
42%
13.7
-108%
Colorchecker DeltaE2000 calibrated *
1.5
3.66
-144%
0.8
47%
Greyscale DeltaE2000 *
3.3
4.1
-24%
4.28
-30%
3
9%
9.61
-191%
Gamma
2.16 111%
2.43 99%
2.25 107%
2.14 112%
2.33 103%
CCT
6973 93%
7369 88%
7352 88%
6377 102%
6021 108%
Color Space (Percent of AdobeRGB 1998)
61.46
63
3%
56
-9%
88.8
44%
54.01
-12%
Color Space (Percent of sRGB)
96.05
97
1%
87
-9%
100
4%
83.02
-14%
Total Average (Program / Settings)
-12% / -18%
-1% / -5%
-15% / 16%
-40% / -43%

* ... smaller is better

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
23.7 ms ... rise ↗ and fall ↘ combined↗ 13.1 ms rise
↘ 10.6 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 32 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (25.8 ms).
       Response Time 50% Grey to 80% Grey
34.3 ms ... rise ↗ and fall ↘ combined↗ 16.4 ms rise
↘ 17.9 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 24 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (41.3 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM not detected

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8813 (minimum: 43 - maximum: 142900) Hz was measured.

Cinebench R15
CPU Single 64Bit
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
168 Points ∼100% +6%
Average Intel Core i7-8550U
  (108 - 172, n=53)
160 Points ∼95% +1%
LG Gram 15Z980-B.AA78B
Intel Core i7-8550U
158 Points ∼94%
Acer Swift 5 SF514-52T-59HY
Intel Core i5-8250U
132 Points ∼79% -16%
Asus ASUSPRO B9440UA-GV0100T
Intel Core i5-7200U
127 Points ∼76% -20%
Asus Zenbook 3 Deluxe UX490UA
Intel Core i5-7200U
125 Points ∼74% -21%
Average of class Subnotebook
  (20 - 169, n=224)
110 Points ∼65% -30%
CPU Multi 64Bit
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
708 Points ∼100% +41%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
648 Points ∼92% +29%
Average Intel Core i7-8550U
  (301 - 761, n=55)
571 Points ∼81% +14%
LG Gram 15Z980-B.AA78B
Intel Core i7-8550U
501 Points ∼71%
Acer Swift 5 SF514-52T-59HY
Intel Core i5-8250U
494 Points ∼70% -1%
Asus Zenbook 3 Deluxe UX490UA
Intel Core i5-7200U
337 (min: 265, max: 337) Points ∼48% -33%
Asus ASUSPRO B9440UA-GV0100T
Intel Core i5-7200U
321 Points ∼45% -36%
Average of class Subnotebook
  (32 - 721, n=231)
300 Points ∼42% -40%
Cinebench R15 CPU Multi 64Bit
501 Points
Cinebench R15 OpenGL 64Bit
52.41 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 CPU Single 64Bit
158 Points
Ajuda
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510Tooltip
Cinebench R15 CPU Multi 64 Bit
PCMark 8
Work Score Accelerated v2
Acer Swift 5 SF514-52T-59HY
UHD Graphics 620, 8250U, Intel SSD 600p SSDPEKKW256G7
4700 Points ∼100% +34%
Asus Zenbook 3 Deluxe UX490UA
HD Graphics 620, 7200U, Micron 1100 MTFDDAV256TBN
4695 Points ∼100% +33%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
4664 Points ∼99% +33%
Asus ASUSPRO B9440UA-GV0100T
HD Graphics 620, 7200U, Micron SSD 1100 (MTFDDAV256TBN)
4630 Points ∼99% +32%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (3518 - 5154, n=17)
4545 Points ∼97% +29%
Average of class Subnotebook
  (1283 - 5363, n=170)
3926 Points ∼84% +12%
LG Gram 15Z980-B.AA78B
UHD Graphics 620, 8550U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
3518 Points ∼75%
Home Score Accelerated v2
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ-000L7
3752 Points ∼100% +15%
Asus ASUSPRO B9440UA-GV0100T
HD Graphics 620, 7200U, Micron SSD 1100 (MTFDDAV256TBN)
3714 Points ∼99% +14%
Asus Zenbook 3 Deluxe UX490UA
HD Graphics 620, 7200U, Micron 1100 MTFDDAV256TBN
3632 Points ∼97% +12%
Average Intel Core i7-8550U, Intel UHD Graphics 620
  (3255 - 4017, n=19)
3632 Points ∼97% +12%
Acer Swift 5 SF514-52T-59HY
UHD Graphics 620, 8250U, Intel SSD 600p SSDPEKKW256G7
3264 Points ∼87% 0%
LG Gram 15Z980-B.AA78B
UHD Graphics 620, 8550U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
3255 Points ∼87%
Average of class Subnotebook
  (1027 - 4182, n=194)
2978 Points ∼79% -9%
PCMark 8 Home Score Accelerated v2
3255 pontos
PCMark 8 Creative Score Accelerated v2
3515 pontos
PCMark 8 Work Score Accelerated v2
3518 pontos
Ajuda
LG Gram 15Z980-B.AA78B
SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
Acer Swift 5 SF514-52T-59HY
Intel SSD 600p SSDPEKKW256G7
Asus Zenbook 3 Deluxe UX490UA
Micron 1100 MTFDDAV256TBN
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Samsung SSD PM981 MZVLB512HAJQ-000L7
Asus ASUSPRO B9440UA-GV0100T
Micron SSD 1100 (MTFDDAV256TBN)
Average SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
 
CrystalDiskMark 3.0
38%
-2%
160%
2%
0%
Write 4k QD32
224.2
203.3
-9%
224.4
0%
439.73
96%
232.1
4%
224
0%
Read 4k QD32
251.5
289.5
15%
246.7
-2%
340.74
35%
247.3
-2%
252
0%
Write 4k
71.1
89.15
25%
85.59
20%
132.93
87%
87.8
23%
71.1
0%
Read 4k
23.6
29.58
25%
26.28
11%
60.58
157%
26.81
14%
23.6
0%
Write 512
413.8
472.8
14%
357
-14%
1272.32
207%
398.8
-4%
414
0%
Read 512
367
641.6
75%
325.9
-11%
419.29
14%
323.2
-12%
367
0%
Write Seq
446.7
596.6
34%
413.3
-7%
1807.6
305%
441.4
-1%
447
0%
Read Seq
488.2
1113
128%
435.3
-11%
2326.8
377%
462
-5%
488
0%
SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
Sequential Read: 488.2 MB/s
Sequential Write: 446.7 MB/s
512K Read: 367 MB/s
512K Write: 413.8 MB/s
4K Read: 23.6 MB/s
4K Write: 71.1 MB/s
4K QD32 Read: 251.5 MB/s
4K QD32 Write: 224.2 MB/s
3DMark
1920x1080 Fire Strike Graphics
LG Gram 15Z980-B.AA78B
Intel UHD Graphics 620, Intel Core i7-8550U
1284 Points ∼100%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, Intel Core i7-8550U
1283 Points ∼100% 0%
Average Intel UHD Graphics 620
  (819 - 1336, n=72)
1070 Points ∼83% -17%
Asus Zenbook 3 Deluxe UX490UA
Intel HD Graphics 620, Intel Core i5-7200U
1018 Points ∼79% -21%
Acer Swift 5 SF514-52T-59HY
Intel UHD Graphics 620, Intel Core i5-8250U
995 Points ∼77% -23%
Asus ASUSPRO B9440UA-GV0100T
Intel HD Graphics 620, Intel Core i5-7200U
975 Points ∼76% -24%
Average of class Subnotebook
  (222 - 3389, n=201)
911 Points ∼71% -29%
1280x720 Cloud Gate Standard Graphics
LG Gram 15Z980-B.AA78B
Intel UHD Graphics 620, Intel Core i7-8550U
10131 Points ∼100%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, Intel Core i7-8550U
10123 Points ∼100% 0%
Average Intel UHD Graphics 620
  (6910 - 10493, n=76)
8674 Points ∼86% -14%
Asus ASUSPRO B9440UA-GV0100T
Intel HD Graphics 620, Intel Core i5-7200U
8433 Points ∼83% -17%
Asus Zenbook 3 Deluxe UX490UA
Intel HD Graphics 620, Intel Core i5-7200U
8382 Points ∼83% -17%
Acer Swift 5 SF514-52T-59HY
Intel UHD Graphics 620, Intel Core i5-8250U
7980 Points ∼79% -21%
Average of class Subnotebook
  (1484 - 18946, n=223)
6801 Points ∼67% -33%
3DMark 06 Standard
11397 pontos
3DMark Cloud Gate Standard Score
8533 pontos
3DMark Fire Strike Score
1168 pontos
3DMark Time Spy Score
427 pontos
Ajuda
Final Fantasy XV Benchmark - 1280x720 Lite Quality
Average of class Subnotebook
  (9.3 - 29.3, n=5)
18.4 fps ∼100% +80%
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
14.7 fps ∼80% +44%
LG Gram 15Z980-B.AA78B
UHD Graphics 620, 8550U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
10.2 fps ∼55%
Average Intel UHD Graphics 620
  (8.8 - 10.2, n=4)
9.55 fps ∼52% -6%
HP Spectre 13-af033ng
UHD Graphics 620, 8550U, Samsung PM961 NVMe MZVLW512HMJP
9.3 fps ∼51% -9%
Dell Latitude 7390
UHD Graphics 620, 8350U, SK hynix SC311 M.2
8.8 fps ∼48% -14%
Unigine Valley 1.0
1920x1080 Extreme HD DirectX AA:x8
Average of class Subnotebook
  (1.7 - 14.6, n=7)
6.16 fps ∼100% +12%
LG Gram 15Z980-B.AA78B
UHD Graphics 620, 8550U, SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF)
5.5 (min: 3.6, max: 9.7) fps ∼89%
Average Intel UHD Graphics 620
  (4.7 - 5.5, n=2)
5.1 fps ∼83% -7%
Acer Spin 5 SP513-52N-566U
UHD Graphics 620, 8250U, Micron 1100 MTFDDAV256TBN
4.7 (min: 3, max: 8.1) fps ∼76% -15%
Dell XPS 13 9360 QHD+ i5
HD Graphics 620, 7200U, Toshiba NVMe THNSN5256GPUK
4.2 fps ∼68% -24%
Dell XPS 13 9360 QHD+ i7
HD Graphics 620, 7500U, Toshiba NVMe THNSN5256GPUK
4.2 fps ∼68% -24%
1920x1080 Extreme HD Preset OpenGL AA:x8
Apple MacBook Pro 13 2018 Touchbar i5
Iris Plus Graphics 655, 8259U
12.2 fps ∼100%
Average of class Subnotebook
  (1.7 - 12.2, n=6)
8.08 fps ∼66%
baixo média alto ultra
Final Fantasy XV Benchmark (2018) 10.2fps

Barulho

Ocioso
30.3 / 30.3 / 31.1 dB
Carga
34.9 / 34.9 dB
  red to green bar
 
 
30 dB
silencioso
40 dB(A)
audível
50 dB(A)
ruidosamente alto
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm de distância)   environment noise: 29.7 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2042.54238.441.737.42530.929.932.330.632.43130.829.629.829.528.84031.331.330.32929.75029.630.22928.130.16328.829.928.727.528.38027.530.62825.727.210025.828.52625.226.612524.226.52524.324.916023.924.224.922.724.320023.323.824.22223.425022.326.425.321.422.331521.82423.720.82140020.824.123.420.22050020.323.322.419.119.863019.621.921.118.51980019.222.5221818.8100019.422.321.917.618.5125019.823.222.817.318.3160019.82524.517.418.420002025.625.117.117.7250019.125.725.91717.331501824.424.51717.4400017.320.520.516.917.4500017.21918.91717.2630017.31817.817.217.4800017.417.717.517.217.41000017.417.517.417.217.51250017.217.617.217.117.31600017.317.417.217.217.4SPL31.135.134.829.730.3N1.52.22.11.31.4median 19.6LG Gram 15Z980-B.AA78Bmedian 23.3median 22.8median 17.4median 18.4Delta2.32.52.91.82.6hearing rangehide median Fan Noise
Carga Máxima
 42 °C43 °C33 °C 
 38 °C39 °C29 °C 
 28 °C27 °C26 °C 
Máximo: 43 °C
Médio: 33.9 °C
37 °C41 °C34 °C
28 °C33 °C33 °C
27 °C30 °C29 °C
Máximo: 41 °C
Médio: 32.4 °C
alimentação elétrica  37 °C | Temperatura do quarto 21.3 °C | Fluke 62 Mini
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2043.840.3253230.83130.4304030.730.45029.829.26328.228.68025.92810024.627.112527.824.816039.62420048.323.225053.222.331558.721.340064.221.150067.720.463072.119.78007519.4100073.118.9125072.918.4160074.318.4200069.317.725006617.4315065.817.5400063.217.3500066.417.3630066.117.4800067.117.51000068.717.41250068.117.31600062.717.4SPL82.230.5N531.4median 66.1LG Gram 15Z980-B.AA78Bmedian 18.4Delta6.72.535.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6Apple MacBook 12 (Early 2016) 1.1 GHzmedian 17.84.62.442.733.742.740.834.140.84335.74346.230.546.245.837.645.847.128.747.14726.24745.12645.143.926.743.945.624.845.648.223.648.25223.25255.122.655.155.222.755.256205660.419.360.467.718.767.766.718.166.761.81861.861.117.961.161.81861.859.317.959.359.618.259.658.618.558.655.618.655.656.718.756.756.518.956.547.91947.947.119.147.143.519.443.573.23173.229.31.429.3median 56Acer Swift 5 SF514-52T-59HYmedian 19median 566.11.96.1hearing rangehide median Pink Noise
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
LG Gram 15Z980-B.AA78B audio analysis

(+) | speakers can play relatively loud (82.2 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 24.1% lower than median
(±) | linearity of bass is average (12.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.4% higher than median
(+) | mids are linear (6.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.1% away from median
(+) | highs are linear (3.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.3% difference to median)
Compared to same class
» 52% of all tested devices in this class were better, 7% similar, 41% worse
» The best had a delta of 8%, average was 19%, worst was 47%
Compared to all devices tested
» 33% of all tested devices were better, 6% similar, 61% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 2% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 19%, worst was 47%
Compared to all devices tested
» 2% of all tested devices were better, 1% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Acer Swift 5 SF514-52T-59HY audio analysis

(-) | not very loud speakers (67.7 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 7.7% lower than median
(+) | bass is linear (6.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.5% higher than median
(+) | mids are linear (6.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.7% away from median
(+) | highs are linear (6.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.4% difference to median)
Compared to same class
» 30% of all tested devices in this class were better, 12% similar, 58% worse
» The best had a delta of 8%, average was 19%, worst was 47%
Compared to all devices tested
» 18% of all tested devices were better, 4% similar, 78% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Consumo de energia
desligadodarklight 0.23 / 0.58 Watt
Ociosodarkmidlight 3.7 / 8.5 / 10 Watt
Carga midlight 36 / 48.7 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
LG Gram 15Z980-B.AA78B
8550U, UHD Graphics 620, SK Hynix Canvas SC300 512GB M.2 (HFS512G39TNF), IPS LED, 1920x1080, 15.6
Acer Swift 5 SF514-52T-59HY
8250U, UHD Graphics 620, Intel SSD 600p SSDPEKKW256G7, IPS, 1920x1080, 14
Asus Zenbook 3 Deluxe UX490UA
7200U, HD Graphics 620, Micron 1100 MTFDDAV256TBN, IPS, 1920x1080, 14
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
8550U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ-000L7, IPS, 2560x1440, 14
Asus ASUSPRO B9440UA-GV0100T
7200U, HD Graphics 620, Micron SSD 1100 (MTFDDAV256TBN), IPS, 1920x1080, 14
Dell XPS 13 9360 QHD+ i7
7500U, HD Graphics 620, Toshiba NVMe THNSN5256GPUK, IPS, 3200x1800, 13.3
Average Intel UHD Graphics 620
 
Average of class Subnotebook
 
Power Consumption
40%
25%
-13%
22%
8%
9%
-21%
Idle Minimum *
3.7
2.8
24%
3.3
11%
3.8
-3%
3.1
16%
6.4
-73%
3.82 (2 - 8.5, n=85)
-3%
6.88 (1 - 36, n=549)
-86%
Idle Average *
8.5
4.8
44%
6.1
28%
8.9
-5%
6.1
28%
6.6
22%
6.99 (4.3 - 11.8, n=85)
18%
10.1 (2.06 - 39, n=549)
-19%
Idle Maximum *
10
6.3
37%
10.1
-1%
11.9
-19%
6.8
32%
6.8
32%
8.62 (5.2 - 13.1, n=85)
14%
12.4 (3.9 - 55, n=549)
-24%
Load Average *
36
21
42%
24.6
32%
47.5
-32%
27.4
24%
27.5
24%
35.5 (15 - 51.1, n=85)
1%
33.2 (6.3 - 75, n=539)
8%
Load Maximum *
48.7
23
53%
22
55%
52.5
-8%
43.7
10%
32.4
33%
41.7 (22 - 71.2, n=85)
14%
40.2 (7.6 - 111, n=542)
17%

* ... smaller is better

Tempo de Execução da Bateria
NBC WiFi Websurfing Battery Test 1.3
13h 25min
Big Buck Bunny H.264 1080p
15h 50min
LG Gram 15Z980-B.AA78B
8550U, UHD Graphics 620, 72 Wh
Acer Swift 5 SF514-52T-59HY
8250U, UHD Graphics 620, 36 Wh
Asus Zenbook 3 Deluxe UX490UA
7200U, HD Graphics 620, 46 Wh
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
8550U, UHD Graphics 620, 57 Wh
Asus ASUSPRO B9440UA-GV0100T
7200U, HD Graphics 620, 48 Wh
Apple MacBook Pro 13 2018 Touchbar i5
8259U, Iris Plus Graphics 655, 58 Wh
Average of class Subnotebook
 
Battery Runtime
-56%
-30%
-38%
-34%
-30%
-48%
H.264
950
466
-51%
566
-40%
651
-31%
453 (182 - 950, n=97)
-52%
WiFi v1.3
805
313
-61%
562
-30%
519
-36%
531
-34%
581
-28%
457 (206 - 805, n=165)
-43%
Witcher 3 ultra
94
96.7 (81 - 115, n=3)

Pro

+ Carcaça de magnésio
+ Extremamente leve
+ Extensa seleção de portas, incluindo Thunderbolt 3
+ Tela brilhante e de alto contraste
+ Slot M.2 adicional
+ Ventoinha mais silenciosa
+ Baixas temperaturas de superfície
+ Duração da bateria impressionante

Contra

- A tela é propensa a flexões
- Leva um tempo se acostumar ao layout dos botões
- Tela altamente refletiva
- Procedimento complexo da garantia
The LG Gram 15Z980 in review
The LG Gram 15Z980 in review

O LG Gram 15Z980 é incomparável para a coroa de portáteis finos e leves de 15 polegadas. Existem compromissos que vêm com este dispositivo de 1,1 kg (~2,4 lbs). Em geral, gostamos da abordagem da LG para tornar o dispositivo mais leve, mas não tornando o dispositivo mais fino em consequência.

A carcaça de liga de magnésio parece premium, mas é suscetível a pressão e torção. A combinação do material e o baixo peso faz com que o dispositivo pareça frágil. No entanto, os testes de resistência e certificação MIL-STD-810G dos populares canais do YouTube ajudam a combater essa impressão.

No geral, o LG Gram 15Z980 é um impressionante cavalo de batalha ultra-móvel que é extremamente leve e oferece ótima duração da bateria. É uma pena que a LG não ofereça o dispositivo em mais mercados.

Além disso, o 15Z980 não consegue fazer uso pleno da sua CPU Core i7-8550U. O nosso dispositivo de teste apenas correspondia aos concorrentes com Core i5-8250U em benchmarks. Além disso, a LG equipou nosso dispositivo de teste com um SSD SATA III lento que não pode competir com unidades NVMe muito mais rápidas. Infelizmente, o dispositivo aceita apenas o padrão SATA III mais lento. Um belo toque é o segundo M.2-2280, caso precise.

Há muitos outros aspectos positivos também. A RAM de 16 GB operando no modo de canal duplo ajuda a extrair o máximo da GPU integrada. O 15Z980 oferece também uma sólida seleção de portas, incluindo três portas USB 3.0 tipo A e uma porta Thunderbolt 3.

O teclado oferece uma boa experiência de digitação geral, mas levará algum tempo para se acostumar. Existem alguns tamanhos de teclas não padrão que parecerão estranhos no início. Além disso, só poderíamos escolher um teclado QWERTY em espanhol. No entanto, a inclusão de um teclado numérico é útil, especialmente porque nem todos os dispositivos de 15 polegadas incluem um.

A tela Full HD é suficientemente brilhante com uma boa relação de contraste e precisão de cor decente. Frustrantemente, o brilho máximo é reduzido significativamente com a bateria. Poderia haver uma configuração em algum lugar para corrigir isso, mas não conseguimos encontrar durante o teste. Isto combinado com uma tela altamente refletiva, faz com que usar o 15Z980 em exteriores seja desconfortável.

Além disso, nosso dispositivo de teste permanece relativamente frio e silencioso, mesmo sob condições de uso intenso. Além disso, o 15Z980 possui uma duração de bateria excepcionalmente longa que derrota facilmente nossos dispositivos de comparação.

Curiosamente, o 15Z980 teria marcado 84% como um portátil de escritório, mas 86% como um sub-portátil. Decidimos classificar o dispositivo na última categoria por causa de sua mobilidade em comparação com outros dispositivos de 15 polegadas.

LG Gram 15Z980-B.AA78B - 08/06/2018 v6
J. Simon Leitner, Alexander Fagot

Acabamento
74 /  98 → 75%
Teclado
71%
Mouse
83%
Conectividade
56 / 80 → 70%
Peso
74 / 35-78 → 90%
Bateria
96%
Pantalha
86%
Desempenho do jogos
64 / 68 → 94%
Desempenho da aplicação
79 / 87 → 91%
Temperatura
92 / 91 → 100%
Ruído
93%
Audio
80 / 91 → 88%
Médio
79%
86%
Subnotebook - Médio equilibrado

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> Análises e revisões de portáteis e celulares > Análises > Análises > Breve Análise do Portátil LG Gram 15Z980 (i7-8550U, Full-HD)
J. Simon Leitner, Alexander Fagot, 2018-08-15 (Update: 2018-08-28)