Notebookcheck

Recensione breve del Convertibile Dell Inspiron 15 5578-1777

Sascha Mölck (traduzione a cura di G. De Luca), 01/31/2017

Upgrade Kaby Lake. Un potente processore, display IPS ed uno scattante SSD: questi sono gli elementi portanti per un buon computer da ufficio, e l'Inspiron li ha tutti. Tastiera retroilluminata e buona autonomia si aggiungono, e un touchscreen utilizzabile con stylus completa il tutto. L'intero pacchetto cosa poco meno di 800 Euro (~$850).

Dell Inspiron 15 5578-1777 2-in-1 (Inspiron 15 5000 Serie)
Processore
Intel Core i5-7200U
Scheda grafica
Intel HD Graphics 620, Core: 300-1000 MHz, Single-channel, 21.20.4526
Memoria
8192 MB 
, DDR4-2400, Single-channel, due banchi di memoria (uno occupato)
Schermo
15.6 pollici 16:9, 1920x1080 pixel 141 PPI, Capacitive, touch 10 punti, supporto Active stylus, Not pressure-sensitive, LG Philips (Dell 156WF7), IPS, lucido: si
Scheda madre
Intel Kaby Lake-U Premium PCH
Harddisk
SanDisk X400 256GB, SATA (SD8SB8U-256G), 256 GB 
, 200 GB libera
Scheda audio
Realtek ALC225 @ Intel Sunrise Point-LP PCH - High Definition Audio Controller
Porte di connessione
1 USB 2.0, 2 USB 3.0 / 3.1, 1 HDMI, 1 Kensington Lock, Connessioni Audio: Audio combo, Lettore schede: SD, Sensori: Sensore Accelerazione, TPM 2.0
Rete
Intel Dual Band Wireless-AC 3165 (a/b/g/n/ac), Bluetooth 4.2
Dimensioni
altezza x larghezza x profondità (in mm): 20.2 x 381.9 x 253.1
Batteria
42 Wh ioni di litio, Autonomia della batteria (dichiarata dal produttore): 6 ore
Sistema Operativo
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: HD
Altre caratteristiche
Casse: Stereo, Tastiera: Chiclet, Illuminazione Tastiera: si, McAfee LiveSafe (trial version), MS Office Home and Student 2016 (trial version), 24 Mesi Garanzia
Peso
2.82 kg, Alimentazione: 288 gr
Prezzo
799 Euro

 

Networking
iperf3 Client (receive) TCP 1 m 4M x10
HP Pavilion x360 15-bk102ng
Intel Dual Band Wireless-AC 3168
352 MBit/s ∼100% +98%
Dell Inspiron 15 5578-1777 2-in-1
Intel Dual Band Wireless-AC 3165
178 MBit/s ∼51%
iperf3 Client (transmit) TCP 1 m 4M x10
HP Pavilion x360 15-bk102ng
Intel Dual Band Wireless-AC 3168
314 MBit/s ∼100% 0%
Dell Inspiron 15 5578-1777 2-in-1
Intel Dual Band Wireless-AC 3165
313 MBit/s ∼100%
iperf Server (receive) TCP 1 m
Dell Inspiron 15 5568
Intel Dual Band Wireless-AC 3165
372 MBit/s ∼100%
iperf Client (transmit) TCP 1 m
Dell Inspiron 15 5568
Intel Dual Band Wireless-AC 3165
390 MBit/s ∼100%
239
cd/m²
239
cd/m²
237
cd/m²
237
cd/m²
244
cd/m²
236
cd/m²
253
cd/m²
251
cd/m²
245
cd/m²
Distribuzione della luminosità
X-Rite i1Pro 2
Massima: 253 cd/m² Media: 242.3 cd/m² Minimum: 14.5 cd/m²
Distribuzione della luminosità: 93 %
Al centro con la batteria: 244 cd/m²
Contrasto: 976:1 (Nero: 0.25 cd/m²)
ΔE Color 4.94 | - Ø
ΔE Greyscale 4.93 | - Ø
63% sRGB (Argyll) 40% AdobeRGB 1998 (Argyll)
Gamma: 2.7
Dell Inspiron 15 5578-1777 2-in-1
IPS, 1920x1080, 15.6
Dell Inspiron 15 5568
IPS, 1920x1080, 15.6
HP Pavilion x360 15-bk102ng
IPS, 1920x1080, 15.6
Lenovo Yoga 510-15ISK
IPS, 1920x1080, 15.6
Response Times
7%
-15%
-17%
Response Time Grey 50% / Grey 80% *
55 (20, 35)
42 (19, 23)
24%
55 (23, 32)
-0%
43.2 (19.6, 23.6)
21%
Response Time Black / White *
20 (4, 16)
22 (6, 16)
-10%
26 (10, 16)
-30%
30.8 (17.6, 13.2)
-54%
PWM Frequency
50 (20)
Screen
3%
-23%
5%
Brightness
242
249
3%
191
-21%
230
-5%
Brightness Distribution
93
85
-9%
74
-20%
86
-8%
Black Level *
0.25
0.26
-4%
0.3
-20%
0.26
-4%
Contrast
976
1023
5%
683
-30%
977
0%
Colorchecker DeltaE2000 *
4.94
4.98
-1%
7.2
-46%
4.23
14%
Greyscale DeltaE2000 *
4.93
2.68
46%
6.86
-39%
2.87
42%
Gamma
2.7 89%
2.27 106%
2.27 106%
2.35 102%
CCT
7401 88%
6583 99%
6983 93%
5965 109%
Color Space (Percent of AdobeRGB 1998)
40
36
-10%
38
-5%
40.35
1%
Color Space (Percent of sRGB)
63
57
-10%
59
-6%
63.48
1%
Media totale (Programma / Settaggio)
5% / 3%
-19% / -22%
-6% / 1%

* ... Meglio usare valori piccoli

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: 57 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 6577 (minimum: 43 - maximum: 142900) Hz was measured.

Tempi di risposta del Display

I tempi di risposta del display mostrano quanto sia veloce lo schermo a cambaire da un colore all'altro. Tempi di risposta lenti poccono creare sovrapposizioni negloi oggetti in movimento. Specialmente i giocatori patiti del 3D dovrebbero usare uno schermo con rempi di risposta bassi.
       Tempi di risposta dal Nero al Bianco
20 ms ... rise ↗ and fall ↘ combined↗ 4 ms Incremento
↘ 16 ms Calo
Lo schermo mostra buoni tempi di risposta durante i nostri tests, ma potrebbe essere troppo lento per i gamers competitivi.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 13 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (26.7 ms).
       Tempo di risposta dal 50% Grigio all'80% Grigio
55 ms ... rise ↗ and fall ↘ combined↗ 20 ms Incremento
↘ 35 ms Calo
Lo schermo mostra tempi di risposta lenti nei nostri tests e sarà insoddisfacente per i gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 88 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (42.8 ms).
Cinebench R10 Rendering Single 32Bit
4976
Cinebench R10 Rendering Multiple CPUs 32Bit
11078
Cinebench R10 Shading 32Bit
7731
Cinebench R15 CPU Single 64Bit
126 Points
Cinebench R15 CPU Multi 64Bit
326 Points
Cinebench R15 OpenGL 64Bit
37.44 fps
Cinebench R15 Ref. Match 64Bit
97.7 %
Aiuto
Cinebench R15
CPU Single 64Bit
Dell Inspiron 15 5568
Intel Core i7-6500U
128 Points ∼66% +2%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
126 Points ∼65% 0%
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
126 Points ∼65%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
114 Points ∼58% -10%
CPU Multi 64Bit
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
326 Points ∼15% 0%
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
326 Points ∼15%
Dell Inspiron 15 5568
Intel Core i7-6500U
308 Points ∼14% -6%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
289 Points ∼13% -11%
Cinebench R10
Rendering Single 32Bit
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
4976 Points ∼56%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
4787 Points ∼54% -4%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
4399 Points ∼50% -12%
Rendering Multiple CPUs 32Bit
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
11328 Points ∼23% +2%
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
11078 Points ∼22%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
9846 Points ∼20% -11%
Geekbench 3
32 Bit Multi-Core Score
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
6439 Points ∼21%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
6297 Points ∼20% -2%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
5733 Points ∼18% -11%
32 Bit Single-Core Score
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
2893 Points ∼62%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
2812 Points ∼60% -3%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
2699 Points ∼58% -7%
Geekbench 4.0
64 Bit Multi-Core Score
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
6795 Points ∼25%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
6425 Points ∼23% -5%
64 Bit Single-Core Score
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
3632 Points ∼65%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
3484 Points ∼62% -4%
JetStream 1.1 - 1.1 Total Score
Dell Inspiron 15 5578-1777 2-in-1
Intel Core i5-7200U
219.95 Points ∼66%
HP Pavilion x360 15-bk102ng
Intel Core i5-7200U
212.03 Points ∼64% -4%
Dell Inspiron 15 5568
Intel Core i7-6500U
207.09 Points ∼62% -6%
Lenovo Yoga 510-15ISK
Intel Core i5-6200U
196.87 Points ∼59% -10%
PCMark 8 Home Score Accelerated v2
3446 punti
Aiuto
PCMark 8 - Home Score Accelerated v2
Lenovo Yoga 510-15ISK
Radeon R7 M460, 6200U, Liteonit CV3-DE256
3651 Points ∼61% +6%
Dell Inspiron 15 5568
HD Graphics 520, 6500U, Toshiba THNSNK256GCS8
3607 Points ∼60% +5%
Dell Inspiron 15 5578-1777 2-in-1
HD Graphics 620, 7200U, SanDisk X400 256GB, SATA (SD8SB8U-256G)
3446 Points ∼58%
HP Pavilion x360 15-bk102ng
HD Graphics 620, 7200U, WDC Slim WD10SPCX-21KHST0
3173 Points ∼53% -8%
SanDisk X400 256GB, SATA (SD8SB8U-256G)
Sequential Read: 502.5 MB/s
Sequential Write: 465.3 MB/s
512K Read: 293 MB/s
512K Write: 322.7 MB/s
4K Read: 28.9 MB/s
4K Write: 54.98 MB/s
4K QD32 Read: 314.5 MB/s
4K QD32 Write: 209.2 MB/s
Dell Inspiron 15 5578-1777 2-in-1
SanDisk X400 256GB, SATA (SD8SB8U-256G)
Dell Inspiron 15 5568
Toshiba THNSNK256GCS8
HP Pavilion x360 15-bk102ng
WDC Slim WD10SPCX-21KHST0
Lenovo Yoga 510-15ISK
Liteonit CV3-DE256
CrystalDiskMark 3.0
-4%
-91%
6%
Write 4k QD32
209.2
197.6
-6%
1.098
-99%
232
11%
Read 4k QD32
314.5
275.3
-12%
0.844
-100%
281.5
-10%
Write 4k
54.98
86.67
58%
1.047
-98%
63.65
16%
Read 4k
28.9
19.88
-31%
0.357
-99%
27.05
-6%
Write 512
322.7
242
-25%
48.12
-85%
356.3
10%
Read 512
293
397.4
36%
31.37
-89%
384.5
31%
Write Seq
465.3
270
-42%
102
-78%
450.7
-3%
Read Seq
502.5
458.6
-9%
102.4
-80%
487
-3%
3DMark 11 Performance
1528 punti
Aiuto
3DMark 11 - 1280x720 Performance GPU
Lenovo Yoga 510-15ISK
AMD Radeon R7 M460, Intel Core i5-6200U
2137 Points ∼4% +50%
Dell Inspiron 15 5568
Intel HD Graphics 520, Intel Core i7-6500U
1506 Points ∼3% +6%
Dell Inspiron 15 5578-1777 2-in-1
Intel HD Graphics 620, Intel Core i5-7200U
1422 Points ∼3%
HP Pavilion x360 15-bk102ng
Intel HD Graphics 620, Intel Core i5-7200U
1355 Points ∼3% -5%
basso medio alto ultra
BioShock Infinite (2013) 40.324.319.96.3fps
Civilization VI (2016) 26.89.2fps

Rumorosità

Idle
30.4 / 30.4 / 30.4 dB(A)
Sotto carico
32.3 / 35.2 dB(A)
 
 
 
30 dB
silenzioso
40 dB(A)
udibile
50 dB(A)
rumoroso
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm di distanza)   Rumorosità ambientale: 30.6 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2037.540.237.837.940.137.52534.439.835.336.135.534.43132.839.53330.631.132.84031.537.630.931.829.831.55030.236.530.830.429.530.26331.636.733.930.733.331.68029.133.331.429.427.829.110029.139.330.828.52729.112525.32825.825.425.325.316025.830.825.925.324.325.820025.229.42624.524.625.225024.129.124.22322.424.131524.327.624.422.821.824.340023.126.822.621.620.323.150021.825.921.920.62021.863020.82521.319.618.920.880020.124.320.819.418.120.1100020.524.621.718.517.720.5125019.7242117.916.819.7160019.323.220.817.716.319.3200018.324.722.117.516.118.3250017.921.719.517.315.617.9315017.720.51917.215.517.7400017.319.317.817.115.417.3500017.218.917.317.21517.2630017.218.717.317.115.317.280001718.417.317.115.2171000016.918.117.11714.916.91250016.817.91716.914.916.816000171817.2171517SPL31.335.232.330.429.131.3N1.62.41.81.41.21.6median 19.7Dell Inspiron 15 5578-1777 2-in-1median 24.3median 21median 17.9median 16.8median 19.7Delta3.343.22.83.53.3hearing rangehide median Fan Noise
Carico massimo
 34 °C37.3 °C28.6 °C 
 33.4 °C25.4 °C26.7 °C 
 24.5 °C24.6 °C25.5 °C 
Massima: 37.3 °C
Media: 28.9 °C
24.8 °C43.3 °C42.6 °C
25.2 °C34.7 °C40.3 °C
25 °C25.8 °C24.9 °C
Massima: 43.3 °C
Media: 31.8 °C
Alimentazione (max)  44.6 °C | Temperatura della stanza 22.4 °C | FIRT 550-Pocket

Speakers

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs203940.1392539.135.539.13136.331.136.34037.829.837.8503829.5386339.933.339.98040.127.840.110040.42740.412542.825.342.816043.424.343.420047.224.647.225051.922.451.931557.921.857.94005720.35750053.92053.963060.218.960.280067.518.167.5100064.917.764.9125067.316.867.3160066.516.366.5200066.916.166.925006115.661315057.415.557.4400062.315.462.3500066.21566.263006515.365800052.715.252.71000048.414.948.41250050.714.950.71600057.31557.3SPL76.229.176.2N36.91.236.9median 57.4Dell Inspiron 15 5578-1777 2-in-1median 16.8median 57.4Delta7.93.57.935.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6Apple MacBook 12 (Early 2016) 1.1 GHzmedian 17.84.62.4hearing rangehide median Pink Noise
Dell Inspiron 15 5578-1777 2-in-1 audio analysis

(-) | not very loud speakers (67 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 10.3% lower than median
(±) | linearity of bass is average (7.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.6% higher than median
(±) | linearity of mids is average (7.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.5% higher than median
(±) | linearity of highs is average (12.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.1% difference to median)
Compared to same class
» 20% of all tested devices in this class were better, 9% similar, 71% worse
» The best had a delta of 11%, average was 23%, worst was 53%
Compared to all devices tested
» 25% of all tested devices were better, 6% similar, 68% worse
» The best had a delta of 3%, average was 22%, 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, 2% similar, 97% worse
» The best had a delta of 9%, average was 19%, worst was 41%
Compared to all devices tested
» 1% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 22%, worst was 53%

Consumo di corrente
Off / Standbydarklight 0.25 / 0.35 Watt
Idledarkmidlight 4.3 / 7.6 / 9.8 Watt
Sotto carico midlight 32.6 / 28.4 Watt
 color bar
Leggenda: min: dark, med: mid, max: light        Metrahit Energy
Autonomia della batteria
Navigazione WiFi v1.3 (Edge 38)
6ore 34minuti
Battery Runtime - WiFi Websurfing 1.3
Dell Inspiron 15 5578-1777 2-in-1
7200U, HD Graphics 620, 42 Wh
394 min ∼33%
HP Pavilion x360 15-bk102ng
7200U, HD Graphics 620, 48 Wh
348 min ∼29% -12%
Lenovo Yoga 510-15ISK
6200U, Radeon R7 M460, 35 Wh
335 min ∼28% -15%
Dell Inspiron 15 5568
6500U, HD Graphics 520, 42 Wh
299 min ∼25% -24%

Pro

+ Display IPS
+ Display Full HD
+ Silenzioso
+ SSD scattante
+ Buona autonomia
+ tastiera retroilluminata

Contro

- Display scuro
- manca la USB Type-C
In review: Dell Inspiron 15 5578-1777. Test device courtesy of Notebooksbilliger.de
In review: Dell Inspiron 15 5578-1777. Test device courtesy of Notebooksbilliger.de

L'Inspiron 15 5578 è un convertibile da 15.6" Dell. Solo i componenti interni differiscono dal modello precedente. Il produttore ora punta su un processore Kaby Lake, che dà potenza al sistema anche in prospettiva dei prossimi anni. L'Inspiron non irrita gli utenti con la sua ventola, o con un hard drive. In idle, è generalmente silenzioso; anche sotto carico non si fa notare molto. Inoltre resta fresco indipendentemente dallo scenario.

Un veloce SSD consente una buona fluidità di sistema. E' possibile estrarre l'SSD in quanto la base è removibile. L'autonomia non è nulla di spettacolare. Il touchscreen funziona perfettamente e reagisce immediatamente agli input delle dita o della penna. Per testare quest'ultima abbiamo provato anche con una penna Hama - con massima soddisfazione. Nel complesso, anche la retroilluminazione della tastiera è buona

In ogni settore importante, l'Inspiron beneficia dell'upgrade Kaby Lake. L'autonomia è migliorata non di poco, ed il sistema ne ha guadagnato di potenza.

Il display IPS è piacevole agli occhi, con la sua buona visibilità da ogni angolo, l'elevato contrasto e la rappresentazione del colore sono sopra la media. La luminosità del display è troppo bassa per l'utilizzo outdoor - pertanto sarete confinati agli ambienti chiusi. Peccato: il dispositivo non ha una porta USB Type-C. Ce ne saremmo aspettati almeno una.

Una nota riguardo la garanzia: se comprate l'Inspiron dal sito Dell, la garanzia standard è di un anno. IN Europa, comprando il computer da altri siti ci sarà una garanzia di due anni. In entrambi i casi può essere estesa - Dell offre molte opzioni a riguardo. 

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

Dell Inspiron 15 5578-1777 2-in-1 - 01/18/2017 v6
Sascha Mölck

Chassis
85 / 98 → 87%
Tastiera
85%
Dispositivo di puntamento
84%
Connettività
46 / 80 → 57%
Peso
58 / 78 → 53%
Batteria
89%
Display
82%
Prestazioni di gioco
54 / 68 → 80%
Prestazioni Applicazioni
84 / 87 → 97%
Temperatura
94%
Rumorosità
93%
Audio
62 / 91 → 68%
Fotocamera
47 / 85 → 56%
Media
74%
79%
Convertible - Media ponderata

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> Recensioni e prove de portatili e telefoni cellulari > Recensioni e prove > Recensioni e prove > Recensione breve del Convertibile Dell Inspiron 15 5578-1777
Sascha Mölck, 2017-01-31 (Update: 2017-01-31)