Breve Análise do Portátil Lenovo Ideapad 720S (Ryzen 2500U, Vega 8)
| Networking | |
| iperf3 transmit AX12 | |
| Acer Spin 5 SP513-52N-54SF | |
| Asus ZenBook 13 UX331UN | |
| Lenovo Ideapad 720S-13IKB | |
| Lenovo Ideapad 720S-13ARR | |
| iperf3 receive AX12 | |
| Asus ZenBook 13 UX331UN | |
| Lenovo Ideapad 720S-13IKB | |
| Acer Spin 5 SP513-52N-54SF | |
| Lenovo Ideapad 720S-13ARR | |
| |||||||||||||||||||||||||
iluminação: 90 %
Contraste: 1107:1 (Preto: 0.27 cd/m²)
ΔE Color 4.46 | 0.5-29.43 Ø4.91
ΔE Greyscale 2.41 | 0.5-98 Ø5.2
83% sRGB (Argyll 1.6.3 3D)
55% AdobeRGB 1998 (Argyll 1.6.3 3D)
60.9% AdobeRGB 1998 (Argyll 2.2.0 3D)
83.3% sRGB (Argyll 2.2.0 3D)
65.2% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.29
| Lenovo Ideapad 720S-13ARR LG Philips LGD04EF, , 1920x1080, 13.3" | Asus ZenBook 13 UX331UN B133HAN04.9, , 1920x1080, 13.3" | Acer Spin 5 SP513-52N-54SF LC133LF102, , 1920x1080, 13.3" | Lenovo Ideapad 720S-13IKB LG Philips LGD04EF, , 1920x1080, 13.3" | |
|---|---|---|---|---|
| Display | 7% | 12% | -1% | |
| Display P3 Coverage | 65.2 | 65.4 0% | 69.8 7% | 64.3 -1% |
| sRGB Coverage | 83.3 | 93.1 12% | 94.6 14% | 82.3 -1% |
| AdobeRGB 1998 Coverage | 60.9 | 66.4 9% | 69.3 14% | 60.2 -1% |
| Response Times | 9% | -46% | 3% | |
| Response Time Grey 50% / Grey 80% * | 36 ? | 22.4 ? 38% | 49 ? -36% | 35 ? 3% |
| Response Time Black / White * | 26 ? | 31.2 ? -20% | 27 ? -4% | 25 ? 4% |
| PWM Frequency | 128000 ? | 1000 ? -99% | 131000 ? 2% | |
| Screen | -2% | 6% | -16% | |
| Brightness middle | 299 | 338 13% | 295 -1% | 335 12% |
| Brightness | 306 | 321 5% | 276 -10% | 303 -1% |
| Brightness Distribution | 90 | 90 0% | 88 -2% | 85 -6% |
| Black Level * | 0.27 | 0.35 -30% | 0.27 -0% | 0.46 -70% |
| Contrast | 1107 | 966 -13% | 1093 -1% | 728 -34% |
| Colorchecker dE 2000 * | 4.46 | 4.2 6% | 2.97 33% | 5.09 -14% |
| Colorchecker dE 2000 max. * | 10.51 | 6.5 38% | 5.67 46% | 11.92 -13% |
| Greyscale dE 2000 * | 2.41 | 3.9 -62% | 3.12 -29% | 3.23 -34% |
| Gamma | 2.29 96% | 2.43 91% | 2.45 90% | 2.18 101% |
| CCT | 6757 96% | 7144 91% | 6676 97% | 6214 105% |
| Color Space (Percent of AdobeRGB 1998) | 55 | 60.4 10% | 62 13% | 54 -2% |
| Color Space (Percent of sRGB) | 83 | 93.1 12% | 94 13% | 82 -1% |
| Total Average (Program / Settings) | 5% /
1% | -9% /
-3% | -5% /
-10% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 26 ms ... rise ↗ and fall ↘ combined | ↗ 14 ms rise |  |
| ↘ 12 ms fall | ||
| The screen shows relatively slow response rates in our tests and may be too slow for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 59 % 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 | ||
| 36 ms ... rise ↗ and fall ↘ combined | ↗ 18 ms rise |  |
| ↘ 18 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. » 46 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (32.8 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM detected | 128000 Hz | ≤ 90 % brightness setting |  |
The display backlight flickers at 128000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 90 % and below. There should be no flickering or PWM above this brightness setting. The frequency of 128000 Hz is quite high, so most users sensitive to PWM should not notice any flickering. 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. | |||
| PCMark 8 Home Score Accelerated v2 | 3168 pontos | |
| PCMark 8 Work Score Accelerated v2 | 3852 pontos | |
Ajuda | ||
| Lenovo Ideapad 720S-13ARR Samsung PM961 NVMe MZVLW128HEGR | Asus ZenBook 13 UX331UN SanDisk SD8SN8U512G1002 | Acer Spin 5 SP513-52N-54SF Micron 1100 MTFDDAV256TBN | Lenovo Ideapad 720S-13IKB Samsung PM961 MZVLW256HEHP | Average Samsung PM961 NVMe MZVLW128HEGR | |
|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | -3% | 10% | 94% | 15% | |
| Read Seq | 1755 | 430.6 -75% | 462.7 -74% | 1674 -5% | 1560 ? -11% |
| Write Seq | 770 | 424.1 -45% | 439.9 -43% | 1191 55% | 781 ? 1% |
| Read 512 | 723 | 275 -62% | 325.2 -55% | 658 -9% | 525 ? -27% |
| Write 512 | 163.7 | 369.8 126% | 361.9 121% | 852 420% | 173.7 ? 6% |
| Read 4k | 36.4 | 28.04 -23% | 27.52 -24% | 51.8 42% | 40.8 ? 12% |
| Write 4k | 69.5 | 53.5 -23% | 91.6 32% | 114.9 65% | 115.4 ? 66% |
| Read 4k QD32 | 292.4 | 322.9 10% | 247.3 -15% | 349.2 19% | 427 ? 46% |
| Write 4k QD32 | 124.7 | 211.9 70% | 292 134% | 332.2 166% | 154.1 ? 24% |
| 3DMark 11 Performance | 1768 pontos | |
| 3DMark Cloud Gate Standard Score | 6303 pontos | |
| 3DMark Fire Strike Score | 985 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 76.5 | 12.1 | ||
| Thief (2014) | 25.2 | 5.9 | ||
| Rise of the Tomb Raider (2016) | 27.7 | 5.9 |
Barulho
| Ocioso |
| 30.4 / 30.4 / 30.4 dB |
| Carga |
| 32.3 / 31.4 dB |
 | ||
30 dB silencioso 40 dB(A) audível 50 dB(A) ruidosamente alto |
||
min:  , med:  , max:  Audix TM1, Arta (15 cm de distância) environment noise: 30.4 dB(A) | ||
(+) The maximum temperature on the upper side is 37.9 °C / 100 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 38.2 °C / 101 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.7 °C / 78 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 26.7 °C / 80.1 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 (+0.9 °C / 1.6 F).
Lenovo Ideapad 720S-13ARR audio analysis
(-) | not very loud speakers (69.7 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 17.6% lower than median
(±) | linearity of bass is average (14.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.8% away from median
(±) | linearity of mids is average (7.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.9% away from median
(±) | linearity of highs is average (7.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.4% difference to median)
Compared to same class
» 49% of all tested devices in this class were better, 9% similar, 42% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 57% of all tested devices were better, 7% similar, 36% worse
» The best had a delta of 4%, average was 25%, worst was 134%
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 (10.2% difference to median)
Compared to same class
» 6% of all tested devices in this class were better, 2% similar, 92% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 4% of all tested devices were better, 1% similar, 95% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| desligado | 0.37 / 0.44 Watt |
| Ocioso | 5.3 / 9 / 12.6 Watt |
| Carga |
37.1 / 26.5 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Lenovo Ideapad 720S-13ARR R5 2500U, Vega 8, Samsung PM961 NVMe MZVLW128HEGR, IPS, 1920x1080, 13.3" | Lenovo Ideapad 720S-13IKB i5-8250U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3" | HP Envy x360 15-bq102ng R5 2500U, Vega 8, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 15.6" | Acer Swift 3 SF315-41-R4W1 R5 2500U, Vega 8, Intel SSD 600p SSDPEKKW256G7, IPS, 1920x1080, 15.6" | |
|---|---|---|---|---|
| Power Consumption | 8% | -4% | -23% | |
| Idle Minimum * | 5.3 | 3.9 26% | 4.8 9% | 7.3 -38% |
| Idle Average * | 9 | 7.7 14% | 7 22% | 9.7 -8% |
| Idle Maximum * | 12.6 | 10.4 17% | 9.5 25% | 13 -3% |
| Load Average * | 37.1 | 33.3 10% | 40.8 -10% | 40.4 -9% |
| Load Maximum * | 26.5 | 34 -28% | 44.3 -67% | 42.2 -59% |
* ... smaller is better
| Lenovo Ideapad 720S-13ARR R5 2500U, Vega 8, 48 Wh | Lenovo Ideapad 720S-13IKB i5-8250U, UHD Graphics 620, 46 Wh | Acer Swift 3 SF315-41-R4W1 R5 2500U, Vega 8, 48 Wh | HP Envy x360 15-bq102ng R5 2500U, Vega 8, 55.8 Wh | Average of class Office | |
|---|---|---|---|---|---|
| Battery Runtime | 73% | 6% | 109% | 131% | |
| Reader / Idle | 683 | 1035 52% | 730 7% | 1234 ? 81% | |
| H.264 | 200 | 716 ? 258% | |||
| WiFi v1.3 | 204 | 608 198% | 310 52% | 426 109% | 608 ? 198% |
| Load | 134 | 91 -32% | 81 -40% | 117.4 ? -12% |
Pro
Contra
Nossa análise mostra claramente que, ter um design de portátil existente e trocando a CPU Intel por uma AMD Ryzen 5 2500U não dá certo. Se a Lenovo tivesse gasto algum tempo e esforço para adaptar a solução de resfriamento à nova CPU AMD, o IdeaPad 720s baseado em Ryzen poderia ter se tornado uma verdadeira alternativa aos processadores Core da 8ª geração da Intel.
O IdeaPad 720s baseado em AMD é um portátil sólido e poderoso, frustrado pela solução de resfriamento terrivelmente pobre e inadequada.
Ainda assim, o SKU AMD analisado do IdeaPad 720 da Lenovo continua a ser um portátil de escritório decente com poder suficiente para tarefas diárias de escritório e desafios multimídia básicos. Esperávamos um melhor desempenho do que o oferecido pelo SKU Intel, recentemente revisado; infelizmente, foi vítima da falha da Lenovo em adaptar o dispositivo à CPU da AMD corretamente.
Lenovo Ideapad 720S-13ARR
- 03/07/2018 v6 (old)
Mike Wobker
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