Test: Dell Latitude 7390 2-i-1 (i7-8650U, FHD) Omvandlingsbar (Sammanfattning)
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 (Toshiba Exceria Pro M501) | |
| Dell Latitude 7390 2-in-1 (Toshiba Exceria Pro M501 UHS-II) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Toshiba Portege A30-D-139 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Asus ZenBook 13 UX331UN (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Average of class Office (22.7 - 198.5, n=35, last 2 years) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell Latitude 7390 2-in-1 (Toshiba Exceria Pro M501 UHS-II) | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 (Toshiba Exceria Pro M501) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Toshiba Portege A30-D-139 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Asus ZenBook 13 UX331UN (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Average of class Office (25 - 249, n=31, last 2 years) | |
| Networking | |
| iperf3 transmit AX12 | |
| Toshiba Portege A30-D-139 | |
| Asus ZenBook 13 UX331UN | |
| Dell Latitude 13 7380 | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| Dell Latitude 7390 2-in-1 | |
| HP Elitebook 1040 G4-2XU40UT | |
| iperf3 receive AX12 | |
| Dell Latitude 7390 2-in-1 | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Dell Latitude 13 7380 | |
| Toshiba Portege A30-D-139 | |
| Asus ZenBook 13 UX331UN | |
| |||||||||||||||||||||||||
Distribution av ljusstyrkan: 83 %
Mitt på batteriet: 318.2 cd/m²
Kontrast: 1061:1 (Svärta: 0.3 cd/m²)
ΔE Color 4.25 | 0.5-29.43 Ø4.91, calibrated: 4.38
ΔE Greyscale 2.1 | 0.5-98 Ø5.2
85% sRGB (Argyll 1.6.3 3D)
56% AdobeRGB 1998 (Argyll 1.6.3 3D)
62.9% AdobeRGB 1998 (Argyll 2.2.0 3D)
86.1% sRGB (Argyll 2.2.0 3D)
62.5% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.311
| Dell Latitude 7390 2-in-1 AUO462D, IPS, 13.3", 1920x1080 | Dell Latitude 13 7380 LGD0589, IPS, 13.3", 1920x1080 | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 B140QAN02.0, IPS, 14", 2560x1440 | HP Elitebook 1040 G4-2XU40UT Chi Mei CMN14D7, IPS, 14", 1920x1080 | Asus ZenBook 13 UX331UN AU Optronics B133HAN04.9, IPS, 13.3", 1920x1080 | Toshiba Portege A30-D-139 Toshiba TOS508F, IPS, 13.3", 1920x1080 | |
|---|---|---|---|---|---|---|
| Display | 6% | 38% | 10% | 1% | 11% | |
| Display P3 Coverage | 62.5 | 65.5 5% | 87.7 40% | 66.8 7% | 63.3 1% | 68 9% |
| sRGB Coverage | 86.1 | 91.8 7% | 100 16% | 97.1 13% | 86.7 1% | 98.1 14% |
| AdobeRGB 1998 Coverage | 62.9 | 65.8 5% | 99.9 59% | 69 10% | 63.4 1% | 70 11% |
| Response Times | 17% | -17% | 16% | 16% | 10% | |
| Response Time Grey 50% / Grey 80% * | 48.8 ? | 34 ? 30% | 59.2 ? -21% | 34.4 ? 30% | 44 ? 10% | 40 ? 18% |
| Response Time Black / White * | 30.4 ? | 29.6 ? 3% | 34.4 ? -13% | 30 ? 1% | 24 ? 21% | 30 ? 1% |
| PWM Frequency | 26040 ? | 208 ? | ||||
| Screen | -31% | 36% | -3% | 1% | -10% | |
| Brightness middle | 318.2 | 317 0% | 578 82% | 295.9 -7% | 329 3% | 319 0% |
| Brightness | 312 | 295 -5% | 533 71% | 287 -8% | 306 -2% | 296 -5% |
| Brightness Distribution | 83 | 87 5% | 84 1% | 87 5% | 86 4% | 88 6% |
| Black Level * | 0.3 | 0.3 -0% | 0.38 -27% | 0.23 23% | 0.3 -0% | 0.28 7% |
| Contrast | 1061 | 1057 0% | 1521 43% | 1287 21% | 1097 3% | 1139 7% |
| Colorchecker dE 2000 * | 4.25 | 6.3 -48% | 1.9 55% | 2.83 33% | 4.07 4% | 4.04 5% |
| Colorchecker dE 2000 max. * | 9.49 | 10.4 -10% | 3.8 60% | 7.34 23% | 7.05 26% | 8.09 15% |
| Colorchecker dE 2000 calibrated * | 4.38 | 0.8 82% | ||||
| Greyscale dE 2000 * | 2.1 | 7.8 -271% | 3 -43% | 5.2 -148% | 2.76 -31% | 5.5 -162% |
| Gamma | 2.311 95% | 1.81 122% | 2.14 103% | 2.28 96% | 2.56 86% | 2.4 92% |
| CCT | 6588 99% | 7120 91% | 6377 102% | 7056 92% | 6915 94% | 7198 90% |
| Color Space (Percent of AdobeRGB 1998) | 56 | 61 9% | 88.8 59% | 63 13% | 56 0% | 64 14% |
| Color Space (Percent of sRGB) | 85 | 92 8% | 100 18% | 97 14% | 86 1% | 98 15% |
| Total Average (Program / Settings) | -3% /
-17% | 19% /
30% | 8% /
2% | 6% /
3% | 4% /
-3% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 30.4 ms ... rise ↗ and fall ↘ combined | ↗ 16.4 ms rise |  |
| ↘ 14 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 81 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 48.8 ms ... rise ↗ and fall ↘ combined | ↗ 23.6 ms rise |  |
| ↘ 25.2 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 83 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| 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 8705 (minimum: 5 - maximum: 343500) Hz was measured. | |||
| wPrime 2.10 - 1024m | |
| Average of class Office (194.4 - 2103, n=6, last 2 years) | |
| Dell Latitude 13 7380 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Dell Latitude 7390 2-in-1 | |
| Average Intel Core i7-8650U (268 - 335, n=3) | |
* ... smaller is better
| PCMark 8 Home Score Accelerated v2 | 3760 poäng | |
| PCMark 8 Creative Score Accelerated v2 | 4869 poäng | |
| PCMark 8 Work Score Accelerated v2 | 4978 poäng | |
| PCMark 10 Score | 3520 poäng | |
Hjälp | ||
| Dell Latitude 7390 2-in-1 SK hynix PC401 NVMe 500 GB | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 Samsung SSD PM981 MZVLB512HAJQ | HP Elitebook 1040 G4-2XU40UT Toshiba XG4 NVMe (THNSN5512GPUK) | Asus ZenBook 13 UX331UN SK Hynix HFS256G39TND-N210A | Toshiba Portege A30-D-139 Toshiba SG5 THNSNK128GVN8 | |
|---|---|---|---|---|---|
| AS SSD | 65% | -12% | -80% | -91% | |
| Copy Game MB/s | 473.6 | 1107 134% | 394.2 -17% | 154.1 -67% | |
| Copy Program MB/s | 223.5 | 460.2 106% | 133.7 -40% | 129.7 -42% | |
| Copy ISO MB/s | 1377 | 1247 -9% | 534 -61% | 192.4 -86% | |
| Score Total | 2057 | 3529 72% | 2299 12% | 991 -52% | 650 -68% |
| Score Write | 781 | 1801 131% | 848 9% | 323 -59% | 163 -79% |
| Score Read | 877 | 1168 33% | 979 12% | 445 -49% | 330 -62% |
| Access Time Write * | 0.052 | 0.027 48% | 0.038 27% | 0.23 -342% | 0.085 -63% |
| Access Time Read * | 0.045 | 0.029 36% | 0.105 -133% | 0.09 -100% | 0.2 -344% |
| 4K-64 Write | 606 | 1529 152% | 662 9% | 233.1 -62% | 83.7 -86% |
| 4K-64 Read | 643 | 876 36% | 782 22% | 368.4 -43% | 257.8 -60% |
| 4K Write | 103.4 | 134.3 30% | 100.1 -3% | 68.9 -33% | 66.8 -35% |
| 4K Read | 42.12 | 52.4 24% | 38.49 -9% | 27.98 -34% | 21.64 -49% |
| Seq Write | 711 | 1376 94% | 863 21% | 213.7 -70% | 128.6 -82% |
| Seq Read | 1911 | 2396 25% | 1585 -17% | 483.7 -75% | 502 -74% |
* ... smaller is better
| 3DMark 11 | |
| 1280x720 Performance GPU | |
| Average of class Office (1468 - 13132, n=89, last 2 years) | |
| Asus ZenBook 13 UX331UN | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| Average Intel UHD Graphics 620 (1144 - 3432, n=244) | |
| HP Elitebook 1040 G4-2XU40UT | |
| Dell Latitude 13 7380 | |
| Dell Latitude 7390 2-in-1 | |
| Toshiba Portege A30-D-139 | |
| 1280x720 Performance Combined | |
| Average of class Office (1731 - 10701, n=89, last 2 years) | |
| Asus ZenBook 13 UX331UN | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Dell Latitude 7390 2-in-1 | |
| Average Intel UHD Graphics 620 (927 - 2505, n=244) | |
| Dell Latitude 13 7380 | |
| Toshiba Portege A30-D-139 | |
| 3DMark | |
| 1280x720 Cloud Gate Standard Graphics | |
| Average of class Office (7982 - 58068, n=63, last 2 years) | |
| Asus ZenBook 13 UX331UN | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Average Intel UHD Graphics 620 (6205 - 16400, n=225) | |
| Dell Latitude 7390 2-in-1 | |
| Dell Latitude 13 7380 | |
| Toshiba Portege A30-D-139 | |
| 1920x1080 Fire Strike Graphics | |
| Average of class Office (736 - 9375, n=91, last 2 years) | |
| Asus ZenBook 13 UX331UN | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Average Intel UHD Graphics 620 (557 - 2608, n=213) | |
| Dell Latitude 7390 2-in-1 | |
| Dell Latitude 13 7380 | |
| Toshiba Portege A30-D-139 | |
| 1920x1080 Ice Storm Extreme Graphics | |
| Average of class Office (24762 - 137729, n=3, last 2 years) | |
| Dell Latitude 7390 2-in-1 | |
| Average Intel UHD Graphics 620 (26409 - 59483, n=71) | |
| Dell Latitude 13 7380 | |
| 3DMark 06 Standard Score | 9648 poäng | |
| 3DMark 11 Performance | 1808 poäng | |
| 3DMark Ice Storm Standard Score | 64396 poäng | |
| 3DMark Cloud Gate Standard Score | 8115 poäng | |
| 3DMark Fire Strike Score | 950 poäng | |
| 3DMark Fire Strike Extreme Score | 395 poäng | |
Hjälp | ||
| låg | med. | hög | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 56 | 33 | 27 | 10 |
Ljudnivå
| Låg belastning |
| 28.2 / 28.2 / 28.2 dB(A) |
| Hög belastning |
| 32 / 41.6 dB(A) |
 | ||
30 dB tyst 40 dB(A) hörbar 50 dB(A) högt ljud |
||
min:  , med:  , max:  BK Precision 732A (15 cm avstånd) environment noise: 28.2 dB(A) | ||
| Dell Latitude 7390 2-in-1 UHD Graphics 620, i7-8650U, SK hynix PC401 NVMe 500 GB | Dell Latitude 13 7380 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 UHD Graphics 620, i5-8550U, Samsung SSD PM981 MZVLB512HAJQ | HP Elitebook 1040 G4-2XU40UT HD Graphics 630, i7-7820HQ, Toshiba XG4 NVMe (THNSN5512GPUK) | Asus ZenBook 13 UX331UN GeForce MX150, i5-8550U, SK Hynix HFS256G39TND-N210A | Toshiba Portege A30-D-139 HD Graphics 620, i3-7100U, Toshiba SG5 THNSNK128GVN8 | |
|---|---|---|---|---|---|---|
| Noise | 3% | -3% | 2% | -8% | -7% | |
| off / environment * | 28.2 | 28 1% | 28.9 -2% | 28.2 -0% | 30.13 -7% | 30 -6% |
| Idle Minimum * | 28.2 | 28 1% | 28.9 -2% | 28.2 -0% | 30.13 -7% | 30 -6% |
| Idle Average * | 28.2 | 28 1% | 28.9 -2% | 28.2 -0% | 30.3 -7% | 30 -6% |
| Idle Maximum * | 28.2 | 29.6 -5% | 32.5 -15% | 28.2 -0% | 30.3 -7% | 30 -6% |
| Load Average * | 32 | 30.6 4% | 35.1 -10% | 33.3 -4% | 39.2 -23% | 39.3 -23% |
| Load Maximum * | 41.6 | 35.4 15% | 35.1 16% | 35.3 15% | 41 1% | 38.3 8% |
* ... smaller is better
(±) The maximum temperature on the upper side is 44 °C / 111 F, compared to the average of 34.3 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 50.6 °C / 123 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.2 °C / 77 F, compared to the device average of 29.5 °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 27.6 °C / 81.7 F (+0.2 °C / 0.4 F).
Dell Latitude 7390 2-in-1 audio analysis
(+) | speakers can play relatively loud (84.3 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 17.1% lower than median
(±) | linearity of bass is average (9% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.4% higher than median
(±) | linearity of mids is average (11.1% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 6% higher than median
(±) | linearity of highs is average (11% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.8% difference to median)
Compared to same class
» 59% of all tested devices in this class were better, 9% similar, 32% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 64% of all tested devices were better, 6% similar, 30% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900 audio analysis
(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 25.9% lower than median
(±) | linearity of bass is average (9.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.8% away from median
(±) | linearity of mids is average (9% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.7% difference to median)
Compared to same class
» 30% of all tested devices in this class were better, 6% similar, 64% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 39% of all tested devices were better, 8% similar, 53% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| Av/Standby | 0.25 / 0.57 Watt |
| Låg belastning | 2.6 / 5.7 / 6 Watt |
| Hög belastning |
29.2 / 38.8 Watt |
   
| |
Förklaring:
min: ,
med: ,
max: Metrahit Energy | |
| Dell Latitude 7390 2-in-1 i7-8650U, UHD Graphics 620, SK hynix PC401 NVMe 500 GB, IPS, 1920x1080, 13.3" | Dell Latitude 13 7380 i7-7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3" | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 i5-8550U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ, IPS, 2560x1440, 14" | HP Elitebook 1040 G4-2XU40UT i7-7820HQ, HD Graphics 630, Toshiba XG4 NVMe (THNSN5512GPUK), IPS, 1920x1080, 14" | Asus ZenBook 13 UX331UN i5-8550U, GeForce MX150, SK Hynix HFS256G39TND-N210A, IPS, 1920x1080, 13.3" | Toshiba Portege A30-D-139 i3-7100U, HD Graphics 620, Toshiba SG5 THNSNK128GVN8, IPS, 1920x1080, 13.3" | |
|---|---|---|---|---|---|---|
| Power Consumption | -1% | -60% | -60% | -9% | -10% | |
| Idle Minimum * | 2.6 | 3.2 -23% | 3.8 -46% | 5.1 -96% | 2.2 15% | 3.2 -23% |
| Idle Average * | 5.7 | 5.5 4% | 8.9 -56% | 7 -23% | 5 12% | 6.8 -19% |
| Idle Maximum * | 6 | 6.1 -2% | 11.9 -98% | 11.7 -95% | 8 -33% | 8 -33% |
| Load Average * | 29.2 | 29.5 -1% | 47.5 -63% | 41.2 -41% | 33 -13% | 30.4 -4% |
| Load Maximum * | 38.8 | 32 18% | 52.5 -35% | 56.9 -47% | 49.4 -27% | 28 28% |
* ... smaller is better
| Dell Latitude 7390 2-in-1 i7-8650U, UHD Graphics 620, 60 Wh | Dell Latitude 13 7380 i7-7600U, HD Graphics 620, 60 Wh | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 i5-8550U, UHD Graphics 620, 57 Wh | HP Elitebook 1040 G4-2XU40UT i7-7820HQ, HD Graphics 630, 67 Wh | Asus ZenBook 13 UX331UN i5-8550U, GeForce MX150, 50 Wh | Toshiba Portege A30-D-139 i3-7100U, HD Graphics 620, 45 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | 9% | -14% | -5% | -13% | 11% | |
| WiFi v1.3 | 553 | 630 14% | 519 -6% | 665 20% | 538 -3% | 548 -1% |
| Load | 135 | 141 4% | 106 -21% | 96 -29% | 105 -22% | 165 22% |
För
Emot
Läs den fullständiga versionen av den här recensionen på engelska här.
Latitude 7390 2-i-1 är en välbyggd, robust och attraktiv maskin med väldigt bra inmatningsenheter och allmänt snabb systemprestanda. Den kommer också med utmärkta anslutningsmöjligheter, är lätt att underhålla och har ett fotavtryck som är mindre än genomsnittet för sin klass. Särskilt imponerande är alternativet för duallagring, vilket möjliggörs av den lediga WWAN-platsen, som också kan inhysa en M.2/NVMe 2230 SSD. Men även om CPU-prestandan är ganska mycket snabbare än jämförbara maskiner från den tidigare generationen så ser vi få saker som rättfärdigar Core i7-konfigurationen som vi har fått som recensionsex. Istället skulle vi, om det inte bara är enkeltrådade applikationer som står på agendan, rekommendera att köra på en billigare Core i5-konfiguration istället.
Latitude 7390 2-i-1 är en välbyggd, robust och attraktiv maskin med väldigt bra inmatningsenheter och allmänt snabb systemprestanda. Men den har ett antal nackdelar och det är verkligen inte en liten investering — så innan du dyker in rekommenderar vi verkligen att du spanar runt lite.
Vidare så hålls 7390 2-i-1 tillbaka av ett antal frågetecken. Det finns bara blanka tryckkänsliga skärmar tillgängliga för konfiguration och ingen av dom är särskilt imponerande när det kommer till färgtäckning — åtminstone inte jämfört med ledarna i denna kategori såsom ThinkPad X1 Carbon. NVMe SSD-enheten vi fick i vår enhet kunde knappast hålla jämna steg med toppskiktsenheter såsom Samsungs motsvarigheter. Maskinen är ganska tung för sin storlek och på grund av dess tjockare och jämförelsevis tunga skärmlock så känns den inte riktigt så stabil i knät som vi hade önskat. Till sist finns alltid frågan om huruvida dom flesta i en företagsmiljö verkligen behöver dom omvandlingsbara funktionerna som erbjuds av dessa Yoga-aktiga maskiner. Dell har redan ett fullt kapabelt och extremt välbalanserat alternativ i sin konventionella Latitude 7380 (och även om vi ännu inte recenserat den, troligen också 7390) — och den kan utrustas med en reflektionsbeständig skärm, är lättare och känns totalt sett mer stabil när den står på något.
Andra maskiner som är värda att överväga (utöver dom konventionella Latitude 7380/7390) är den utomordentliga ThinkPad X1 Carbon 2018 och Asus Zenbook 13 UX331UA. För ca 17 000 kronor (som konfigurerad här) är Latitude 7390 2-i-1 verkligen inte en liten investering — så innan du dyker in rekommenderar vi verkligen att du spanar runt lite.
Dell Latitude 7390 2-in-1
- 03/20/2018 v6 (old)
Steve Schardein
Price comparison
