Breve Análise do Portátil Lenovo ThinkPad T490: A atualização Comet Lake-U
Lenovo ThinkPad T490 20RY0002US (ThinkPad T490 Serie)
Processador
Intel Core i7-10510U 4 x 1.8 - 4.9 GHz, Comet Lake-U
Placa gráfica
Intel UHD Graphics 620, 26.20.100.7261
Memória
32 GB
, DDR4-2666, Dual-Channel, 10-10-10-28. 16 GB soldered + 16 GB removable
Pantalha
14.00 polegadas 16:9, 1920 x 1080 pixel 157 PPI, Capacitiva de 10 pontos, native pen support, R140NWF5 RA, IPS, LEN40A9, Brilhante: não
placa mãe
Intel Comet Lake-U PCH-LP Premium
Disco rígido
Sabrent Rocket Q 1TB RKT30Q.1, 1024 GB
peso
1.46 kg, Suprimento de energia: 345 g
Preço
1600 USD
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
|---|---|---|---|---|---|---|---|
| 86.3 % v7 (old) | 03/2020 | Lenovo ThinkPad T490 20RY0002US i7-10510U, UHD Graphics 620 | 1.5 kg | 17.9 mm | 14.00" | 1920x1080 | |
| 89.6 % v6 (old) | 04/2018 | Lenovo ThinkPad T480-20L6S01V00 i5-8550U, GeForce MX150 | 1.8 kg | 20 mm | 14.00" | 1920x1080 | |
| 79.7 % v6 (old) | 08/2019 | Dell Inspiron 15 5000 5585 R7 3700U, Vega 10 | 1.8 kg | 19.5 mm | 15.60" | 1920x1080 | |
| 88.4 % v7 (old) | 09/2019 | Lenovo ThinkPad T495s-20QKS01E00 R7 PRO 3700U, Vega 10 | 1.3 kg | 16.1 mm | 14.00" | 1920x1080 | |
| 81.8 % v7 (old) | 02/2020 | Lenovo ThinkBook 15 i5-10210U, UHD Graphics 620 | 1.9 kg | 18.9 mm | 15.60" | 1920x1080 |
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Lenovo ThinkPad T495s-20QKS01E00 (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Lenovo ThinkPad T480-20L6S01V00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T470-20HD002HGE (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T490 20RY0002US (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Lenovo ThinkPad T460-20FN003LGE | |
| maximum AS SSD Seq Read Test (1GB) | |
| Lenovo ThinkPad T495s-20QKS01E00 (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Lenovo ThinkPad T470-20HD002HGE (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T480-20L6S01V00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T460-20FN003LGE | |
| Lenovo ThinkPad T490 20RY0002US (Toshiba Exceria Pro M501 64 GB UHS-II) | |
| Networking | |
| iperf3 transmit AX12 | |
| Lenovo ThinkPad T490 20RY0002US | |
| Acer Aspire 5 A514-52 | |
| Lenovo Yoga C740-14IML | |
| Alienware m17 R2 P41E | |
| iperf3 receive AX12 | |
| Lenovo ThinkPad T490 20RY0002US | |
| Acer Aspire 5 A514-52 | |
| Lenovo Yoga C740-14IML | |
| Alienware m17 R2 P41E | |
Lenovo ThinkPad T490 20RY0002US; iperf3 receive AX12; iperf 3.1.3: Ø1378 (1352-1402)
Lenovo ThinkPad T490 20RY0002US; iperf3 transmit AX12; iperf 3.1.3: Ø1667 (1622-1700)
4 ∆E
3.5 ∆E
3 ∆E
2.8 ∆E
4.3 ∆E
8.1 ∆E
2.8 ∆E
5.1 ∆E
6.5 ∆E
7.7 ∆E
3.6 ∆E
4.1 ∆E
5.6 ∆E
8.2 ∆E
6.1 ∆E
5.8 ∆E
4.5 ∆E
7 ∆E
10 ∆E
7.5 ∆E
6.1 ∆E
6.4 ∆E
4.2 ∆E
1.7 ∆E
| |||||||||||||||||||||||||
R140NWF5 RA tested with X-Rite i1Pro 2
Máximo: 308.8 cd/m² (Nits) Médio: 293.3 cd/m² Minimum: 5.37 cd/m²iluminação: 91 %
iluminação com acumulador: 305.6 cd/m²
Contraste: 1528:1 (Preto: 0.2 cd/m²)
ΔE Color 4.27 | 0.5-29.43 Ø4.91, calibrated: 3.66
ΔE Greyscale 2.8 | 0.5-98 Ø5.2
61.1% sRGB (Argyll 1.6.3 3D)
39.1% AdobeRGB 1998 (Argyll 1.6.3 3D)
42.37% AdobeRGB 1998 (Argyll 2.2.0 3D)
61.3% sRGB (Argyll 2.2.0 3D)
40.99% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.33
| Lenovo ThinkPad T490 20RY0002US R140NWF5 RA, IPS, 14", 1920x1080 | Lenovo ThinkPad T480-20L6S01V00 Lenovo LP140WF6-SPB7, IPS, 14", 1920x1080 | Lenovo ThinkPad T470-20HD002HGE N140HCA-EAB, IPS, 14", 1920x1080 | Lenovo ThinkPad T460-20FN003LGE Lenovo LEN40A9 / N140HCE-EAA, IPS, 14", 1920x1080 | Lenovo ThinkPad T450-20BV001VGE Samsung LTN140KT14401, TN-Panel, 14", 1600x900 | Lenovo ThinkPad T495s-20QKS01E00 B140HAN05.7, IPS, 14", 1920x1080 | |
|---|---|---|---|---|---|---|
| Display | -4% | 1% | 2% | -3% | 61% | |
| Display P3 Coverage | 40.99 | 39.24 -4% | 41.6 1% | 42.09 3% | 39.62 -3% | 67 63% |
| sRGB Coverage | 61.3 | 58.8 -4% | 61.9 1% | 62 1% | 59.6 -3% | 96.8 58% |
| AdobeRGB 1998 Coverage | 42.37 | 40.56 -4% | 43.06 2% | 43.6 3% | 40.94 -3% | 68.3 61% |
| Response Times | 18% | -5% | 11% | -32% | ||
| Response Time Grey 50% / Grey 80% * | 47.2 ? | 35.6 ? 25% | 41.6 ? 12% | 42.4 ? 10% | 60.8 ? -29% | |
| Response Time Black / White * | 28 ? | 24.8 ? 11% | 34 ? -21% | 24.8 ? 11% | 37.6 ? -34% | |
| PWM Frequency | 980 ? | |||||
| Screen | -13% | -20% | -33% | -87% | 24% | |
| Brightness middle | 305.6 | 307 0% | 306 0% | 230 -25% | 166 -46% | 380 24% |
| Brightness | 293 | 295 1% | 287 -2% | 216 -26% | 163 -44% | 381 30% |
| Brightness Distribution | 91 | 90 -1% | 88 -3% | 85 -7% | 68 -25% | 87 -4% |
| Black Level * | 0.2 | 0.25 -25% | 0.3 -50% | 0.26 -30% | 0.71 -255% | 0.22 -10% |
| Contrast | 1528 | 1228 -20% | 1020 -33% | 885 -42% | 234 -85% | 1727 13% |
| Colorchecker dE 2000 * | 4.27 | 5.7 -33% | 6.2 -45% | 7.32 -71% | 7.16 -68% | 4 6% |
| Colorchecker dE 2000 max. * | 22.5 | 21.3 5% | 13.6 40% | 18.14 19% | 5.7 75% | |
| Colorchecker dE 2000 calibrated * | 3.66 | 4.7 -28% | 1.2 67% | |||
| Greyscale dE 2000 * | 2.8 | 3.7 -32% | 5.8 -107% | 6.98 -149% | 7.62 -172% | 4.4 -57% |
| Gamma | 2.33 94% | 2.11 104% | 2.04 108% | 2.5 88% | 2.25 98% | 2.54 87% |
| CCT | 6416 101% | 7353 88% | 6277 104% | 6683 97% | 9371 69% | 6963 93% |
| Color Space (Percent of AdobeRGB 1998) | 39.1 | 37.4 -4% | 39.62 1% | 39.97 2% | 37.8 -3% | 62.2 59% |
| Color Space (Percent of sRGB) | 61.1 | 58.7 -4% | 61.44 1% | 61.55 1% | 96.6 58% | |
| Total Average (Program / Settings) | 0% /
-7% | -8% /
-14% | -7% /
-20% | -45% /
-64% | 18% /
24% |
* ... smaller is better
Display Response Times
ℹ
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 | ||
|---|---|---|
| 28 ms ... rise ↗ and fall ↘ combined | ↗ 14.8 ms rise |  |
| ↘ 13.2 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. » 68 % 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 | ||
| 47.2 ms ... rise ↗ and fall ↘ combined | ↗ 26 ms rise |  |
| ↘ 21.2 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. » 80 % 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)
ℹ
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 detected | 980 Hz | ≤ 99 % brightness setting |  |
The display backlight flickers at 980 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 99 % and below. There should be no flickering or PWM above this brightness setting. The frequency of 980 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 8715 (minimum: 5 - maximum: 343500) Hz was measured. | |||
Lenovo ThinkPad T490 20RY0002US UHD Graphics 620, i7-10510U, Sabrent Rocket Q 1TB RKT30Q.1; CPU Multi 64Bit: Ø650 (621.2-684.29)
Lenovo ThinkPad P53s-20N6001NGE Quadro P520, i7-8565U, Intel SSD 760p SSDPEKKW256G8; CPU Multi 64Bit: Ø624 (521.26-694.16)
Lenovo Yoga C740-14IML UHD Graphics 620, i5-10210U, Samsung SSD PM981a MZVLB256HBHQ; CPU Multi 64Bit: Ø550 (517.87-676.69)
Lenovo ThinkPad T495s-20QKS01E00 Vega 10, R7 PRO 3700U, Samsung PM981a MZVLB1T0HBLR; CPU Multi 64Bit: Ø578 (565.26-658.27)
| Cinebench R10 | |
| Rendering Multiple CPUs 32Bit | |
| Microsoft Surface Laptop 3 13 Core i5-1035G7 | |
| Average Intel Core i7-10510U (6763 - 26265, n=3) | |
| Rendering Single 32Bit | |
| Average Intel Core i7-10510U (5740 - 7748, n=3) | |
| Microsoft Surface Laptop 3 13 Core i5-1035G7 | |
| wPrime 2.10 - 1024m | |
| Microsoft Surface Laptop 3 13 Core i5-1035G7 | |
* ... smaller is better
| PCMark 8 Home Score Accelerated v2 | 3883 pontos | |
| PCMark 8 Work Score Accelerated v2 | 5293 pontos | |
| PCMark 10 Score | 4661 pontos | |
Ajuda | ||
| Lenovo ThinkPad T490 20RY0002US Sabrent Rocket Q 1TB RKT30Q.1 | Lenovo ThinkPad T480-20L6S01V00 Samsung SSD PM981 MZVLB512HAJQ | Lenovo ThinkPad T460-20FN003LGE Toshiba HG6 THNSFJ256GCSU | Lenovo ThinkPad T470s-20HF0012US Samsung PM961 MZVLW256HEHP | Lenovo ThinkPad T450-20BV001VGE Samsung SSD PM851 256 GB MZ7TE256HMHP | Lenovo ThinkPad T495s-20QKS01E00 Samsung PM981a MZVLB1T0HBLR | |
|---|---|---|---|---|---|---|
| AS SSD | -282% | -76% | -3% | -60% | 15% | |
| Seq Read | 2073 | 1441 -30% | 503 -76% | 2691 30% | 508 -75% | 2661 28% |
| Seq Write | 1865 | 487.1 -74% | 432.8 -77% | 1170 -37% | 230 -88% | 2314 24% |
| 4K Read | 50.9 | 58 14% | 19.57 -62% | 48.84 -4% | 33.9 -33% | 45.52 -11% |
| 4K Write | 157.6 | 1.76 -99% | 62.6 -60% | 147.9 -6% | 98.7 -37% | 105.3 -33% |
| 4K-64 Read | 689 | 1278 85% | 347 -50% | 1765 156% | 362.7 -47% | 1806 162% |
| 4K-64 Write | 1615 | 96.2 -94% | 114.5 -93% | 538 -67% | 184.2 -89% | 1650 2% |
| Access Time Read * | 0.043 | 0.041 5% | 0.133 -209% | 0.06 -40% | 0.04 7% | |
| Access Time Write * | 0.07 | 2.515 -3493% | 0.061 13% | 0.025 64% | 0.033 53% | 0.041 41% |
| Score Read | 947 | 1480 56% | 417 -56% | 2083 120% | 447 -53% | 2118 124% |
| Score Write | 1959 | 147 -92% | 220 -89% | 803 -59% | 306 -84% | 1986 1% |
| Score Total | 3394 | 2348 -31% | 852 -75% | 3875 14% | 980 -71% | 5169 52% |
| Copy ISO MB/s | 3024 | 921 -70% | 797 -74% | 225.8 -93% | 1131 -63% | |
| Copy Program MB/s | 715 | 254.8 -64% | 291 -59% | 153.3 -79% | 267.1 -63% | |
| Copy Game MB/s | 1650 | 676 -59% | 309.9 -81% | 191.2 -88% | 691 -58% | |
| CrystalDiskMark 5.2 / 6 | -28% | -15% | ||||
| Write 4K | 227.2 | 153.1 -33% | 142.3 -37% | |||
| Read 4K | 55.3 | 48.3 -13% | 46.69 -16% | |||
| Write Seq | 1411 | 866 -39% | ||||
| Read Seq | 1046 | 904 -14% | ||||
| Write 4K Q32T1 | 643 | 424.6 -34% | 268.3 -58% | |||
| Read 4K Q32T1 | 625 | 403.2 -35% | 359.6 -42% | |||
| Write Seq Q32T1 | 1972 | 1725 -13% | 3033 54% | |||
| Read Seq Q32T1 | 3247 | 1780 -45% | 3561 10% | |||
| Write 4K Q8T8 | 1491 | |||||
| Read 4K Q8T8 | 1499 | |||||
| Total Average (Program / Settings) | -155% /
-190% | -76% /
-76% | -3% /
-3% | -60% /
-60% | 0% /
6% |
* ... smaller is better
Sabrent Rocket Q 1TB RKT30Q.1
CDM 5/6 Read Seq Q32T1:
3247 MB/s
CDM 5/6 Write Seq Q32T1:
1972 MB/s
CDM 5/6 Read 4K Q32T1:
625 MB/s
CDM 5/6 Write 4K Q32T1:
643 MB/s
CDM 5 Read Seq:
1046 MB/s
CDM 5 Write Seq:
1411 MB/s
CDM 5/6 Read 4K:
55.3 MB/s
CDM 5/6 Write 4K:
227.2 MB/s
| 3DMark 11 Performance | 2218 pontos | |
| 3DMark Cloud Gate Standard Score | 9432 pontos | |
| 3DMark Fire Strike Score | 1234 pontos | |
| 3DMark Time Spy Score | 492 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 87 | 41.5 | 34.5 | 10.8 |
| Lenovo ThinkPad T490 20RY0002US UHD Graphics 620, i7-10510U, Sabrent Rocket Q 1TB RKT30Q.1 | Lenovo ThinkPad T480-20L6S01V00 GeForce MX150, i5-8550U, Samsung SSD PM981 MZVLB512HAJQ | Lenovo ThinkPad T470-20HD002HGE HD Graphics 620, i5-7200U, Samsung PM961 NVMe MZVLW512HMJP | Lenovo ThinkPad T460-20FN003LGE HD Graphics 520, 6200U, Toshiba HG6 THNSFJ256GCSU | Lenovo ThinkPad T450-20BV001VGE HD Graphics 5500, 5200U, Samsung SSD PM851 256 GB MZ7TE256HMHP | Lenovo ThinkPad T495s-20QKS01E00 Vega 10, R7 PRO 3700U, Samsung PM981a MZVLB1T0HBLR | |
|---|---|---|---|---|---|---|
| Noise | -0% | 4% | -1% | 0% | 3% | |
| off / environment * | 28.2 | 29 -3% | 28 1% | 29 -3% | 28.9 -2% | |
| Idle Minimum * | 28.2 | 29 -3% | 28 1% | 29 -3% | 29.2 -4% | 28.9 -2% |
| Idle Average * | 28.2 | 29 -3% | 28 1% | 29 -3% | 29.2 -4% | 28.9 -2% |
| Idle Maximum * | 29.2 | 29 1% | 29.4 -1% | 29 1% | 29.2 -0% | 28.9 1% |
| Load Average * | 35.5 | 35.6 -0% | 31.4 12% | 34.2 4% | 34.9 2% | 31.5 11% |
| Load Maximum * | 38 | 35.6 6% | 34.6 9% | 37.8 1% | 35.1 8% | 33.8 11% |
| Witcher 3 ultra * | 32.5 |
* ... smaller is better
Barulho
| Ocioso |
| 28.2 / 28.2 / 29.2 dB |
| Carga |
| 35.5 / 38 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: 28.2 dB(A) | ||
(-) The average temperature for the upper side under maximal load is 39.6 °C / 103 F, compared to the average of 29.5 °C / 85 F for the devices in the class Office.
(-) The maximum temperature on the upper side is 50.8 °C / 123 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 61.6 °C / 143 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 29.1 °C / 84 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (32.4 °C / 90.3 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 27.6 °C / 81.7 F (-4.8 °C / -8.6 F).
(-) The maximum temperature on the upper side is 50.8 °C / 123 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 61.6 °C / 143 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 29.1 °C / 84 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (32.4 °C / 90.3 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 27.6 °C / 81.7 F (-4.8 °C / -8.6 F).
Consumo de energia
| desligado | 0.23 / 0.74 Watt |
| Ocioso | 4.3 / 7 / 7.2 Watt |
| Carga |
34.9 / 68.4 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Lenovo ThinkPad T490 20RY0002US i7-10510U, UHD Graphics 620, Sabrent Rocket Q 1TB RKT30Q.1, IPS, 1920x1080, 14" | Lenovo ThinkPad T480-20L6S01V00 i5-8550U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS, 1920x1080, 14" | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, Samsung PM961 NVMe MZVLW512HMJP, IPS, 1920x1080, 14" | Lenovo ThinkPad T460-20FN003LGE 6200U, HD Graphics 520, Toshiba HG6 THNSFJ256GCSU, IPS, 1920x1080, 14" | Lenovo ThinkPad T450-20BV001VGE 5200U, HD Graphics 5500, Samsung SSD PM851 256 GB MZ7TE256HMHP, TN-Panel, 1600x900, 14" | Lenovo ThinkPad T495s-20QKS01E00 R7 PRO 3700U, Vega 10, Samsung PM981a MZVLB1T0HBLR, IPS, 1920x1080, 14" | |
|---|---|---|---|---|---|---|
| Power Consumption | -20% | 22% | 18% | 24% | -5% | |
| Idle Minimum * | 4.3 | 3.6 16% | 3.21 25% | 3.5 19% | 3 30% | 4.7 -9% |
| Idle Average * | 7 | 7.1 -1% | 6.15 12% | 6.7 4% | 5.5 21% | 7.28 -4% |
| Idle Maximum * | 7.2 | 9.5 -32% | 6.82 5% | 7.3 -1% | 6.4 11% | 9.48 -32% |
| Load Average * | 34.9 | 63.9 -83% | 28.5 18% | 28.2 19% | 28.4 19% | 35.3 -1% |
| Load Maximum * | 68.4 | 67.3 2% | 34.5 50% | 34.6 49% | 40.7 40% | 55.5 19% |
| Witcher 3 ultra * | 53.9 |
* ... smaller is better
| Lenovo ThinkPad T490 20RY0002US i7-10510U, UHD Graphics 620, 50 Wh | Lenovo ThinkPad T480-20L6S01V00 i5-8550U, GeForce MX150, 72 Wh | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, 48 Wh | Lenovo ThinkPad T460-20FN003LGE 6200U, HD Graphics 520, 46 Wh | Lenovo ThinkPad T450-20BV001VGE 5200U, HD Graphics 5500, 48 Wh | Lenovo ThinkPad T495s-20QKS01E00 R7 PRO 3700U, Vega 10, 57 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | 57% | -13% | -33% | -36% | 34% | |
| WiFi v1.3 | 505 | 794 57% | 438 -13% | 338 -33% | 324 -36% | 675 34% |
| Reader / Idle | 1671 | 953 | 935 | |||
| Load | 159 | 110 | 98 | 93 |
Pro
+ Deslocamento mais profundo do que a maioria dos Ultrabooks
+ TrackPoint e teclas do mouse
+ Opção WAN 4G LTE
+ Tela táctil mate
+ Fácil de fazer manutenção
+ Wi-Fi 6
Contra
- Altas temperaturas sob uso intenso
- Bateria menor do que a do ThinkPad T480
- Sem opção Core i7-10710U de 6 núcleos
- Sem baia SATA III de 2,5 polegadas
- Marcos superior e inferior da tela grossos
- RAM não atualizável
- Obturador de privacidade na webcam
Conforme observado em nossa visão geral inicial da série, os benefícios do desempenho bruto do Comet Lake-U sobre Whiskey Lake-U são marginais, exceto para o Core i7-10710U de seis núcleos, que infelizmente não está disponível no ThinkPad T490. Em vez disso, os usuários podem configurar apenas o Core i7-10510U de quatro núcleos.
Além da atualização da CPU, os SKUs Comet Lake-U ThinkPad T490 possuem RAM mais rápida (DDR4-2400 a DDR4-2666) e Wi-Fi (802.11ac a 802.11ax) que os SKUs Whiskey Lake-U mais antigos. As diferenças entre gerações, no entanto, são novamente marginais, na melhor das hipóteses.
Para maximizar o valor, recomendamos uma configuração mais antiga do Whiskey Lake-U com uma das opções de tela mais brilhantes da Lenovo. O T490 oferece painéis FHD de 400 nit e WQHD de 500 nit para ser mais brilhante do que a tela de 300 nit que temos aqui. Investir em uma tela melhor será muito mais perceptível do que o salto da Intel de 8ª para 10ª geração a esse respeito.
As alterações de CPU, RAM e WLAN são pequenas atualizações em relação ao modelo do ano passado. Se você deseja um ThinkPad da série T de 14 polegadas, aguarde o ThinkPad T14 ou simplesmente opte pela configuração Whiskey Lake-U T490.
Lenovo ThinkPad T490 20RY0002US
- 03/06/2020 v7 (old)
Allen Ngo
Office - Médio equilibrado
Price comparison
