Notebookcheck

Kort testrapport HP EliteBook 840 G4 (7200U, Full HD) Laptop

Andreas Osthoff, 25-03-2017

Weinig verandering. HP verkoopt hun zakelijke notebooks nu ook met Kaby Lake processoren, terwijl de rest vrijwel onveranderd is gebleven. Dit geldt ook voor het beeldscherm, dat ondanks de hoge helderheid ons teleurstelt op veel vlakken.

HP EliteBook 840 G4-Z2V49ET ABD (EliteBook 840 Serie)
Processor
Intel Core i5-7200U
Grafische kaart
Intel HD Graphics 620
Geheugen
8192 MB 
, DDR4-2133, 1/2 slots bezet, tot 32 GB
Beeldscherm
14 inch 16:9, 1920 x 1080 pixel 157 PPI, AUO123D, TN, glimmend: nee
Moederbord
Intel Kaby Lake-U Premium PCH
Opslag
Samsung PM961 MZVLW256HEHP, 256 GB 
Geluidskaart
Intel Kaby Lake-U/Y PCH - High Definition Audio
Verbindingen
2 USB 3.0, 1 USB 3.1 Gen2, 1 VGA, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Verbindingen: 3.5 mm audio, Card Reader: SD (SD, SDHC, SDXC), 1 SmartCard, 1 Vingerafdruklezer
Netwerkmogelijkheden
Intel Ethernet Connection I219-V (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.2, LTE, LTE
Afmetingen
hoogte x breedte x diepte (in mm): 18.9 x 338 x 237
Batterij
51 Wh Lithium-Ion, Batterijduur: 15 h
Besturingssysteem
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 720p HD
Bijkomende functionaliteiten
Luidsprekers: Stereo, Toetsenbord: Chiclet, Toetsenbordverlichting: ja, 45-Watt stroomadapter, snelstartgids, garantie-informatie, HP Tools, Microsoft Office 365 (trial), 36 Maanden Garantie
Gewicht
1.48 kg, Voeding: 283 g
Prijs
1539 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Size Comparison

Linkerkant: Kensington stol, VGA, USB 3.0, SmartCard lezer
Linkerkant: Kensington stol, VGA, USB 3.0, SmartCard lezer
Rechterkant: USB-C Gen.1, DisplayPort 1.2, SD kaartlezer (niet zichtbaar), 3.5 mm audio, USB 3.0, RJ45, docking poort, Micro-SIM, stroomaansluiting
Rechterkant: USB-C Gen.1, DisplayPort 1.2, SD kaartlezer (niet zichtbaar), 3.5 mm audio, USB 3.0, RJ45, docking poort, Micro-SIM, stroomaansluiting
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo ThinkPad T470s-20HGS00V00
 
79.3 MB/s ∼100% +6%
Lenovo ThinkPad T470-20HD002HGE
 
76.6 MB/s ∼97% +2%
HP EliteBook 840 G4-Z2V49ET ABD
 
74.9 MB/s ∼94%
Fujitsu LifeBook U747
 
72.6 MB/s ∼92% -3%
HP EliteBook 840 G3 T9X59ET#ABD
 
61 MB/s ∼77% -19%
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad T470s-20HGS00V00
 
90.5 MB/s ∼100% +8%
Lenovo ThinkPad T470-20HD002HGE
 
88.74 MB/s ∼98% +6%
HP EliteBook 840 G4-Z2V49ET ABD
 
83.7 MB/s ∼92%
HP EliteBook 840 G3 T9X59ET#ABD
 
83.6 MB/s ∼92% 0%
Fujitsu LifeBook U747
 
83.3 MB/s ∼92% 0%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad T470-20HD002HGE
Intel Dual Band Wireless-AC 8265
657 MBit/s ∼100% +13%
Fujitsu LifeBook U747
Intel Dual Band Wireless-AC 8265
655 MBit/s ∼100% +13%
Lenovo ThinkPad T470s-20HGS00V00
Intel Dual Band Wireless-AC 8265
639 MBit/s ∼97% +10%
HP EliteBook 840 G4-Z2V49ET ABD
Intel Dual Band Wireless-AC 8265 (jseb)
579 MBit/s ∼88%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo ThinkPad T470-20HD002HGE
Intel Dual Band Wireless-AC 8265
512 MBit/s ∼100% +1%
HP EliteBook 840 G4-Z2V49ET ABD
Intel Dual Band Wireless-AC 8265 (jseb)
509 MBit/s ∼99%
Fujitsu LifeBook U747
Intel Dual Band Wireless-AC 8265
509 MBit/s ∼99% 0%
Lenovo ThinkPad T470s-20HGS00V00
Intel Dual Band Wireless-AC 8265
297 MBit/s ∼58% -42%
315
cd/m²
323
cd/m²
311
cd/m²
296
cd/m²
346
cd/m²
304
cd/m²
304
cd/m²
345
cd/m²
311
cd/m²
Helderheidsverdeling
X-Rite i1Pro 2
Maximum: 346 cd/m² Gemiddelde: 317.2 cd/m² Minimum: 22.4 cd/m²
Helderheidsverdeling: 86 %
Helderheid in Batterij-modus: 346 cd/m²
Contrast: 402:1 (Zwart: 0.86 cd/m²)
ΔE Color 8.64 | 0.4-29.43 Ø6.2
ΔE Greyscale 11.24 | 0.64-98 Ø6.5
80% sRGB (Argyll 3D) 52% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.62
HP EliteBook 840 G4-Z2V49ET ABD
AUO123D, , 1920x1080, 14
Lenovo ThinkPad T470-20HD002HGE
N140HCA-EAB, , 1920x1080, 14
Lenovo ThinkPad T470s-20HGS00V00
B140QAN01.5, , 2560x1440, 14
Fujitsu LifeBook U747
LG LP140WF3, , 1920x1080, 14
HP EliteBook Folio 1040 G3
AUO1136, , 2560x1440, 14
HP EliteBook 840 G3 T9X59ET#ABD
Chi Mei CMN14C0, , 1920x1080, 14
Response Times
-28%
-22%
4%
-17%
-10%
Response Time Grey 50% / Grey 80% *
39 (20, 19, Plateau)
41.6 (20.4, 21.2)
-7%
46.4 (20.4, 26)
-19%
36 (16.4, 19.6)
8%
46.4 (16.4, 30)
-19%
43 (20, 23)
-10%
Response Time Black / White *
23 (6, 17, Plateau)
34 (9.6, 24.4)
-48%
28.8 (16.4, 12.4)
-25%
23.2 (12.4, 10.8)
-1%
26.4 (6.8, 19.6)
-15%
25 (9, 16)
-9%
PWM Frequency
204 (90)
Screen
23%
39%
33%
38%
4%
Brightness middle
346
306
-12%
327
-5%
291
-16%
327
-5%
366
6%
Brightness
317
287
-9%
311
-2%
296
-7%
316
0%
336
6%
Brightness Distribution
86
88
2%
88
2%
84
-2%
87
1%
87
1%
Black Level *
0.86
0.3
65%
0.25
71%
0.32
63%
0.35
59%
0.65
24%
Contrast
402
1020
154%
1308
225%
909
126%
934
132%
563
40%
Colorchecker DeltaE2000 *
8.64
6.2
28%
6.1
29%
4.3
50%
4.39
49%
10.26
-19%
Colorchecker DeltaE2000 max. *
13.58
13.6
-0%
12.2
10%
7.5
45%
7.27
46%
Greyscale DeltaE2000 *
11.24
5.8
48%
8.8
22%
4.3
62%
4.69
58%
11.51
-2%
Gamma
2.62 84%
2.04 108%
2.18 101%
2.31 95%
2.15 102%
2.4 92%
CCT
12530 52%
6277 104%
6172 105%
6529 100%
7101 92%
12725 51%
Color Space (Percent of AdobeRGB 1998)
52
39.62
-24%
61.56
18%
55.46
7%
62.52
20%
47
-10%
Color Space (Percent of sRGB)
80
61.44
-23%
94.88
19%
84.77
6%
96.71
21%
74
-7%
Totaal Gemiddelde (Programma / Instellingen)
-3% / 15%
9% / 29%
19% / 28%
11% / 29%
-3% / 2%

* ... kleiner is beter

Responstijd Scherm

De responstijden van het scherm tonen hoe snel het scherm in staat is om van één kleur naar de andere te veranderen. Trage responstijden kunnen aanleiding geven tot 'nabeelden' rond bewegende objecten of het scherm wazig maken (blur). Vooral spelers van snelle 3D-games hebben baat bij een scherm met snelle responstijden.
       Responstijd Zwart naar Wit
23 ms ... stijging ↗ en daling ↘ gecombineerd↗ 6 ms stijging
↘ 17 ms daling
Het scherm vertoonde prima responstijden in onze tests maar is misschien wat te traag voor competitieve games.
Ter vergelijking: alle testtoestellen variëren van 0.8 (minimum) tot 240 (maximum) ms. » 28 % van alle toestellen zijn beter.
Dit betekent dat de gemeten responstijd beter is dan het gemiddelde (25.6 ms) van alle geteste toestellen.
       Responstijd 50% Grijs naar 80% Grijs
39 ms ... stijging ↗ en daling ↘ gecombineerd↗ 20 ms stijging
↘ 19 ms daling
Het scherm vertoonde trage responstijden in onze tests en is misschien te traag voor games.
Ter vergelijking: alle testtoestellen variëren van 0.9 (minimum) tot 636 (maximum) ms. » 40 % van alle toestellen zijn beter.
Dit betekent dat de gemeten responstijd vergelijkbaar is met het gemiddelde (41 ms) van alle geteste toestellen.

Screen Flickering / PWM (Pulse-Width Modulation)

Om de schermhelderheid te verlagen schakelen sommige laptops het backlight erg snel aan en uit. Dit gebeurt aan een dergelijk hoge frequentie dat het niet zichtbaar is voor het menselijk oog. Als de frequentie te laag is kunnen personen met gevoelige ogen geïrriteerd geraken, hoofdpijn krijgen en zelfs flickering waarnemen.
Screen flickering / PWM niet waargenomen

Ter vergelijking: 53 % van alle geteste toestellen maakten geen gebruik van PWM om de schermhelderheid te verlagen. Als het wel werd gebruikt, werd een gemiddelde van 8933 (minimum: 43 - maximum: 142900) Hz waargenomen.

0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Lenovo ThinkPad T470s-20HGS00V00
Intel Core i7-7600U
162 Points ∼74% +36%
Fujitsu LifeBook U747
Intel Core i5-7200U
130 Points ∼60% +9%
Lenovo ThinkPad T470-20HD002HGE
Intel Core i5-7200U
126 Points ∼58% +6%
HP EliteBook Folio 1040 G3
Intel Core i5-6300U
124 Points ∼57% +4%
HP EliteBook 840 G3 T9X59ET#ABD
Intel Core i7-6500U
119 Points ∼55% 0%
HP EliteBook 840 G4-Z2V49ET ABD
Intel Core i5-7200U
119 Points ∼55%
CPU Multi 64Bit
Lenovo ThinkPad T470s-20HGS00V00
Intel Core i7-7600U
368 Points ∼8% +12%
Fujitsu LifeBook U747
Intel Core i5-7200U
331 Points ∼8% +1%
HP EliteBook 840 G4-Z2V49ET ABD
Intel Core i5-7200U
329 Points ∼8%
Lenovo ThinkPad T470-20HD002HGE
Intel Core i5-7200U
326 Points ∼7% -1%
HP EliteBook 840 G3 T9X59ET#ABD
Intel Core i7-6500U
322 Points ∼7% -2%
HP EliteBook Folio 1040 G3
Intel Core i5-6300U
303 Points ∼7% -8%
Cinebench R15 CPU Single 64Bit
119 Points
Cinebench R15 CPU Multi 64Bit
329 Points
Cinebench R15 OpenGL 64Bit
38.88 fps
Cinebench R15 Ref. Match 64Bit
97.7 %
Help
PCMark 8
Work Score Accelerated v2
Lenovo ThinkPad T470s-20HGS00V00
HD Graphics 620, 7600U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
4856 Points ∼75% +6%
Lenovo ThinkPad T470-20HD002HGE
HD Graphics 620, 7200U, Samsung PM961 NVMe MZVLW512HMJP
4667 Points ∼72% +2%
Fujitsu LifeBook U747
HD Graphics 620, 7200U, Samsung MZYTY256HDHP
4653 Points ∼71% +2%
HP EliteBook 840 G4-Z2V49ET ABD
HD Graphics 620, 7200U, Samsung PM961 MZVLW256HEHP
4572 Points ∼70%
HP EliteBook 840 G3 T9X59ET#ABD
HD Graphics 520, 6500U, Samsung SSD PM851 256 GB MZNTE256HMHP
4275 Points ∼66% -6%
HP EliteBook Folio 1040 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
4241 Points ∼65% -7%
Home Score Accelerated v2
Lenovo ThinkPad T470s-20HGS00V00
HD Graphics 620, 7600U, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
3968 Points ∼65% +14%
Lenovo ThinkPad T470-20HD002HGE
HD Graphics 620, 7200U, Samsung PM961 NVMe MZVLW512HMJP
3507 Points ∼58% +1%
Fujitsu LifeBook U747
HD Graphics 620, 7200U, Samsung MZYTY256HDHP
3506 Points ∼58% +1%
HP EliteBook 840 G4-Z2V49ET ABD
HD Graphics 620, 7200U, Samsung PM961 MZVLW256HEHP
3486 Points ∼57%
HP EliteBook Folio 1040 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
3305 Points ∼54% -5%
HP EliteBook 840 G3 T9X59ET#ABD
HD Graphics 520, 6500U, Samsung SSD PM851 256 GB MZNTE256HMHP
3231 Points ∼53% -7%
PCMark 8 Home Score Accelerated v2
3486 punten
PCMark 8 Creative Score Accelerated v2
4352 punten
PCMark 8 Work Score Accelerated v2
4572 punten
Help
HP EliteBook 840 G4-Z2V49ET ABD
Samsung PM961 MZVLW256HEHP
Lenovo ThinkPad T470-20HD002HGE
Samsung PM961 NVMe MZVLW512HMJP
Lenovo ThinkPad T470s-20HGS00V00
Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0)
Fujitsu LifeBook U747
Samsung MZYTY256HDHP
HP EliteBook Folio 1040 G3
Samsung SM951 MZVPV256HDGL m.2 PCI-e
HP EliteBook 840 G3 T9X59ET#ABD
Samsung SSD PM851 256 GB MZNTE256HMHP
CrystalDiskMark 3.0
-10%
12%
-50%
9%
-56%
Write 4k QD32
410.2
425.4
4%
532.8
30%
249.7
-39%
376.7
-8%
242.8
-41%
Read 4k QD32
512.9
496.2
-3%
629.8
23%
399.1
-22%
559.2
9%
388.5
-24%
Write 4k
157.1
134.6
-14%
167.4
7%
87.8
-44%
159.9
2%
82.57
-47%
Read 4k
61.38
55.46
-10%
53.15
-13%
35.73
-42%
53.26
-13%
27.02
-56%
Write 512
803.5
861.6
7%
1064
32%
283.4
-65%
1244
55%
241.8
-70%
Read 512
921.8
810.6
-12%
832.3
-10%
396.7
-57%
1252
36%
396
-57%
Write Seq
1263
1076
-15%
1666
32%
497.8
-61%
1265
0%
241.4
-81%
Read Seq
1819
1155
-37%
1760
-3%
504
-72%
1649
-9%
497.8
-73%
Samsung PM961 MZVLW256HEHP
Sequential Read: 1819 MB/s
Sequential Write: 1263 MB/s
512K Read: 921.8 MB/s
512K Write: 803.5 MB/s
4K Read: 61.38 MB/s
4K Write: 157.1 MB/s
4K QD32 Read: 512.9 MB/s
4K QD32 Write: 410.2 MB/s
3DMark 11 - 1280x720 Performance GPU
Lenovo ThinkPad T470s-20HGS00V00
Intel HD Graphics 620, Intel Core i7-7600U
1777 Points ∼100% +26%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
1432 Points ∼81% +1%
HP EliteBook 840 G4-Z2V49ET ABD
Intel HD Graphics 620, Intel Core i5-7200U
1413 Points ∼80%
Fujitsu LifeBook U747
Intel HD Graphics 620, Intel Core i5-7200U
1409 Points ∼79% 0%
HP EliteBook Folio 1040 G3
Intel HD Graphics 520, Intel Core i5-6300U
1377 Points ∼77% -3%
HP EliteBook 840 G3 T9X59ET#ABD
Intel HD Graphics 520, Intel Core i7-6500U
1327 Points ∼75% -6%
3DMark
1920x1080 Fire Strike Graphics
Lenovo ThinkPad T470s-20HGS00V00
Intel HD Graphics 620, Intel Core i7-7600U
1176 Points ∼100% +59%
HP EliteBook Folio 1040 G3
Intel HD Graphics 520, Intel Core i5-6300U
900 Points ∼77% +22%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
818 Points ∼70% +11%
HP EliteBook 840 G3 T9X59ET#ABD
Intel HD Graphics 520, Intel Core i7-6500U
800 Points ∼68% +8%
Fujitsu LifeBook U747
Intel HD Graphics 620, Intel Core i5-7200U
799 Points ∼68% +8%
HP EliteBook 840 G4-Z2V49ET ABD
Intel HD Graphics 620, Intel Core i5-7200U
738 Points ∼63%
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad T470s-20HGS00V00
Intel HD Graphics 620, Intel Core i7-7600U
9610 Points ∼100% +40%
HP EliteBook 840 G4-Z2V49ET ABD
Intel HD Graphics 620, Intel Core i5-7200U
6864 Points ∼71%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
6824 Points ∼71% -1%
Fujitsu LifeBook U747
Intel HD Graphics 620, Intel Core i5-7200U
6803 Points ∼71% -1%
HP EliteBook Folio 1040 G3
Intel HD Graphics 520, Intel Core i5-6300U
6708 Points ∼70% -2%
HP EliteBook 840 G3 T9X59ET#ABD
Intel HD Graphics 520, Intel Core i7-6500U
6351 Points ∼66% -7%
3DMark 11 Performance
1525 punten
3DMark Ice Storm Standard Score
50497 punten
3DMark Cloud Gate Standard Score
5621 punten
3DMark Fire Strike Score
697 punten
Help
lage gem. hoge ultra
BioShock Infinite (2013) 40.524.319.86.4fps
Battlefield 4 (2013) 30.724.515.7fps
The Witcher 3 (2015) 12.9fps

Geluidsniveau

Onbelast
31 / 31 / 31 dB (A)
Belasting
33.5 / 33.7 dB (A)
  red to green bar
 
 
30 dB
stil
40 dB(A)
hoorbaar
50 dB(A)
luid
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm afstand)   environment noise: 31 dB(A)
HP EliteBook 840 G4-Z2V49ET ABD
7200U, HD Graphics 620
Lenovo ThinkPad T470-20HD002HGE
7200U, HD Graphics 620
Lenovo ThinkPad T470s-20HGS00V00
7600U, HD Graphics 620
Fujitsu LifeBook U747
7200U, HD Graphics 620
HP EliteBook Folio 1040 G3
6300U, HD Graphics 520
HP EliteBook 840 G3 T9X59ET#ABD
6500U, HD Graphics 520
Noise
6%
-2%
8%
3%
-6%
off / environment *
31
28
10%
28.9
7%
28.2
9%
29.1
6%
31.2
-1%
Idle Minimum *
31
28
10%
28.9
7%
28.2
9%
29.1
6%
31.2
-1%
Idle Average *
31
28
10%
28.9
7%
28.2
9%
29.1
6%
32.1
-4%
Idle Maximum *
31
29.4
5%
30.1
3%
28.2
9%
29.1
6%
33.1
-7%
Load Average *
33.5
31.4
6%
39.2
-17%
31.2
7%
32.6
3%
36.2
-8%
Load Maximum *
33.7
34.6
-3%
39.2
-16%
33
2%
37.8
-12%
37.8
-12%

* ... kleiner is beter

Max. Belasting
 34 °C37 °C33 °C 
 33.2 °C36.3 °C33.5 °C 
 26.5 °C26.2 °C27.4 °C 
Maximum: 37 °C
Gemiddelde: 31.9 °C
39.4 °C35.6 °C35.4 °C
33 °C35.2 °C33.2 °C
29.1 °C28.2 °C27.3 °C
Maximum: 39.4 °C
Gemiddelde: 32.9 °C
Stroomadapter (max.)  34.7 °C | Kamertemperatuur 22.1 °C | FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 31.9 °C / 89 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(+) The maximum temperature on the upper side is 37 °C / 99 F, compared to the average of 33.9 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(+) The bottom heats up to a maximum of 39.4 °C / 103 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25 °C / 77 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 27.4 °C / 81.3 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.3 °C / 82.9 F (+0.9 °C / 1.6 F).
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2039.23739.22537.43437.43135.330.735.34038.436.938.45038.331.138.36339.630.839.68039.83039.81003928.53912540.425.340.416042.925.542.920046.925.946.925048.523.748.531557.923.957.940060.622.160.65006121.46163060.820.560.880058.22058.2100060.919.360.9125060.318.760.3160059.718.259.7200061.51861.5250065.317.965.3315062.317.862.3400064.817.864.8500066.617.966.6630066.317.866.3800063.617.963.61000062.117.762.11250059.617.559.61600051.217.651.2SPL75.231.175.2N36.21.636.2median 60.6median 18.7median 60.6Delta5.32.25.33336.432.635.528.436.629.234.626.23225.934.926.138.325.936.924.339.922.741.62245.324.550.52159.519.262.21862.218.668.618.573.420.369.216.56814.66614.962.814.466.514.771.315.160.214.867.11569.915.357.215.257.614.960.914.953.828.879.71.247.3median 16.5median 62.23.17.1hearing rangehide median Pink NoiseHP EliteBook 840 G4-Z2V49ET ABDLenovo ThinkPad T470-20HD002HGE
HP EliteBook 840 G4-Z2V49ET ABD audio analysis

(-) | not very loud speakers (66 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.6% lower than median
(±) | linearity of bass is average (7.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 0.7% away from median
(+) | mids are linear (3.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.9% away from median
(+) | highs are linear (5.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (13.6% difference to median)
Compared to same class
» 7% of all tested devices in this class were better, 4% similar, 89% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 11% of all tested devices were better, 3% similar, 86% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Lenovo ThinkPad T470-20HD002HGE audio analysis

(±) | speaker loudness is average but good (80.44 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.6% lower than median
(±) | linearity of bass is average (8.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.3% away from median
(+) | mids are linear (6.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.4% higher than median
(±) | linearity of highs is average (13.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.3% difference to median)
Compared to same class
» 24% of all tested devices in this class were better, 9% similar, 67% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 27% of all tested devices were better, 6% similar, 67% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Stroomgebruik
Uit / Standbydarklight 0.52 / 0.72 Watt
Inactiefdarkmidlight 2.9 / 5.6 / 8.15 Watt
Belasting midlight 30.6 / 31 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
HP EliteBook 840 G4-Z2V49ET ABD
7200U, HD Graphics 620, 1920x1080, 14
Lenovo ThinkPad T470-20HD002HGE
7200U, HD Graphics 620, 1920x1080, 14
Lenovo ThinkPad T470s-20HGS00V00
7600U, HD Graphics 620, 2560x1440, 14
Fujitsu LifeBook U747
7200U, HD Graphics 620, 1920x1080, 14
HP EliteBook Folio 1040 G3
6300U, HD Graphics 520, 2560x1440, 14
HP EliteBook 840 G3 T9X59ET#ABD
6500U, HD Graphics 520, 1920x1080, 14
Power Consumption
-2%
-44%
-19%
-56%
-6%
Idle Minimum *
2.9
3.21
-11%
4.64
-60%
4.11
-42%
6.3
-117%
3.8
-31%
Idle Average *
5.6
6.15
-10%
8.93
-59%
7.87
-41%
9.4
-68%
6.3
-13%
Idle Maximum *
8.15
6.82
16%
9.12
-12%
8.74
-7%
10.1
-24%
6.8
17%
Load Average *
30.6
28.5
7%
42.2
-38%
30.2
1%
33.3
-9%
34.4
-12%
Load Maximum *
31
34.5
-11%
47.3
-53%
32.4
-5%
49.5
-60%
28.3
9%

* ... kleiner is beter

Batterijduur
Inactief (zonder WLAN, minimale helderheid)
19h 15min
NBC WiFi Websurfing Battery Test 1.3
9h 31min
Big Buck Bunny H.264 1080p
9h 51min
Belast (maximale helderheid)
3h 04min
HP EliteBook 840 G4-Z2V49ET ABD
7200U, HD Graphics 620, 51 Wh
Lenovo ThinkPad T470-20HD002HGE
7200U, HD Graphics 620, 48 Wh
Lenovo ThinkPad T470s-20HGS00V00
7600U, HD Graphics 620, 51 Wh
Fujitsu LifeBook U747
7200U, HD Graphics 620, 50 Wh
HP EliteBook Folio 1040 G3
6300U, HD Graphics 520, 45.6 Wh
HP EliteBook 840 G3 T9X59ET#ABD
6500U, HD Graphics 520, 46 Wh
Batterijduur
-19%
-33%
-28%
-43%
-18%
Reader / Idle
1155
787
-32%
782
-32%
530
-54%
1020
-12%
H.264
591
623
5%
454
-23%
490
-17%
339
-43%
WiFi v1.3
571
438
-23%
417
-27%
430
-25%
309
-46%
453
-21%
Load
184
110
-40%
93
-49%
117
-36%
131
-29%
146
-21%

Pro

+ Stevige behuizing
+ Lage emissies
+ Uitgebreide beveiligingsmogelijkheden
+ LTE modem
+ Goede prestaties
+ 3 jaar garantie
+ Goede invoerapparaten

Contra

- TN beeldscherm heeft sterke blauwe tint en beperkte kijkhoeken
- Geen Thunderbolt 3 of USB-C Gen.2
- Licht krakend geluid van de scharnieren
Getest: HP EliteBook 840 G4. Testmodel geleverd door Notebook.de
Getest: HP EliteBook 840 G4. Testmodel geleverd door Notebook.de

Voor het volledige, Engelse testrapport, klik hier.

De nieuwe HP EliteBook 840 G4 is in principe slechts een Kaby Lake update van het voorgaande G3 model. Zowel de grootte als de kwaliteit van de behuizing leggen de lat hoog voor concurrentie; alleen bepaalde kleine gebreken zoals krakende scharnieren of luide touchpad knoppen doen afbreuk aan deze indruk. De uitstekende toegang tot componenten is ook positief: RAM uitbreiden is bijvoorbeeld geen probleem. We zijn ook te spreken over de invoerapparaten, met name het toetsenbord.

De 14 inch zakelijke notebook houdt ook de emissies beperkt. Het apparaat is stil, wordt niet uitermate warm en de Intel Core i5-7200U kan maximaal presteren. HP heeft ook de accucapaciteit uitgebreid, wat resulteert in looptijden van bijna 10 uur.

Goede behuizing, degelijke prestaties, lage emissies - de vierde generatie van de HP EliteBook 840 zou een uitstekende zakelijke laptop kunnen zijn. Dit wordt alleen verhinderd door het slechte TN beeldscherm dat absoluut geen plek heeft in een laptop van €1500.

HP heeft niet alle aansluitingen een upgrade gegeven. De meeste essentiële poorten zijn aanwezig, maar Thunderbolt 3 ontbreekt.

Het grootste probleem is echter het Full HD TN beeldscherm. Verlichting en resolutie zijn degelijk, maar het paneel stelt op alle andere vlakken teleur. Vooral de beperkte kijkhoeken kunnen tijdens alledaags gebruik vervelend zijn. Zo'n beeldscherm is niet acceptabel voor een zakelijke notebook van €1500. Indien je kiest voor de EliteBook 840, kies dan wel de versie met IPS beeldscherm. We kunnen ons testmodel met TN paneel niet aanbevelen.

HP EliteBook 840 G4-Z2V49ET ABD - 26-05-2017 v6
Andreas Osthoff

Behuizing
89 / 98 → 91%
Toetsenbord
89%
Aanwijsapparaat
87%
Aansluitmogelijkheden
68 / 80 → 85%
Gewicht
69 / 20-67 → 100%
Batterij
92%
Beeldscherm
76%
Gaming-performance
54 / 68 → 79%
Applicatie-performance
87 / 92 → 94%
Temperatuur
94%
Luidheid
97%
Audio
68%
Camera
27 / 85 → 32%
Gemiddelde
77%
87%
Office - Gewogen Gemiddelde

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> Overzichten en testrapporten over laptops en mobieltjes > Testrapporten > Kort testrapport HP EliteBook 840 G4 (7200U, Full HD) Laptop
Andreas Osthoff, 2017-03-25 (Update: 2017-03-25)