Reading: Redefining High-End Business Edition! Dell Latitude 7390 Review | Redefining High-End Business Edition! Dell Latitude 7390 Review

Talking about classic business notebooks, we must mention Dell's Latitude series. The series has always been based on professional and stable design, safe and reliable quality in the industry enjoyed a high reputation, is considered to represent the mainstream high-end business notebook. With With the rise of design elements such as lightweight body and narrow border screen, the Dell Latitude series also updated its product line, introducing the new Dell Latitude 7390 business notebook. How exactly does this high-end product perform?

First, product appearance and design style

Appearance, Dell Latitude 7390 continues the Latitude series of classic business appearance, magnesium alloy shell and calm atmosphere of Athens black body, at the same time, without losing professional and strict business temperament.

From the point of view of business, this product is also relatively light, 1.17kg body is convenient for daily carrying, 180° opening and closing is more flexible, it is a good choice for travellers.

On the screen side, the Latitude 7390 uses a 13.3-inch resolution 1920×1080 anti-glare display, 4.9mm narrow frame design, the overall display is good.

The keyboard of the Dell Latitude 7390 is ergonomically designed with a 1.65mm keystroke and a 2-level backlight design for a comfortable and flexible experience. The C-side skin coating is comfortable to touch, but it is also easier to stay. fingerprint.

In addition, although the Latitude 7390 uses a lightweight and compact body design, it is equipped with a rich body interface (HDMI × 1, RJ-45 network port, Type-C × 1, USB 3.0 × 2, uSIM card tray), Can meet the business needs of many users under the scene.

It is worth mentioning that the Dell Latitude 7390 also passed the US SIL-STD-810G military standard test (impact/vibration test, humidity test, dust test, high altitude operation test, etc.). It can easily apply a variety of environments and is strong enough. durable.

Second, hardware configuration and performance

In terms of hardware, this evaluation prototype uses Intel® CoreTM i7-8650U processor, 16GB DDR4 memory, and 1TB NVMe SSD, which is the top-level configuration in mainstream business.

● Intel® CoreTM i7-8650U processor

The Dell Latitude 7390 is equipped with an Intel® CoreTM i7-8650U processor (base frequency: 1.90GHz, Turbo frequency: 4.20GHz, cache: 8MB), quad-core and eight-thread, TDP is 15W.

Compared with the common i7-8550U processor, i7-8650U has a higher frequency / Turbo frequency, so the theoretical performance is stronger. The results of the processor performance test (CINEBENCH R15) can also be seen, Dell Latitude 7390 The i7-8650U processor (multi-core: 671cb, single-core: 182cb) is equipped with a significantly better performance than the i7-8550U (multi-core: 560cb, single-core: 171cb) processor and the previous-generation i5-7300HQ processing. (Multi-core: 513cb, Single-core: 148cb).

● 16GB DDR4 memory + 1TB NVMe SSD

For storage devices, the evaluation prototype uses a 16GB DDR4 memory and a 1TB NVMe SSD storage portfolio, which is a relatively high-end configuration in the business product. In the SSD test (CrystalDiskMark), this 1TB NVMe SSD has a sustained read speed of 3070.9. MB/s, continuous write speed is 957.3MB/s, and read speed is about 6 times that of ordinary SATA SSD. It can easily take into account the different needs of users for speed and capacity.

● Comprehensive performance theory test

Third, endurance and cooling performance

● Endurance

In addition to product appearance, hardware configuration, etc., endurance is also an important reference standard in the business evaluation. In order to more intuitive understanding of the notebook's endurance, so we tested the battery life through the PCMark 8 home mode.

During the test, the software will run the test project cyclically until the battery is exhausted, which can give a relatively realistic endurance score. However, it should be noted that during our daily use, the long-term cyclic high load scenario is not Common, so the actual use of time is much higher than the following battery life test results.

In the battery life test, the Dell Latitude 7390 scored 4 hours and 50 minutes, and the battery life was excellent. It exceeded the lifespan of mainstream business notebooks.

● Thermal performance

In terms of heat dissipation performance, we performed a full-load double-bake test on the prototype. The initial conditions for the test were as follows:

Test Tools: AIDA64, FurMark, Room Temperature: 27°C, CPU Load: 100%, Test Time: >1 Hour

AIDA64 and FurMark are two commonly used copying tools. AIDA64 can test the heat dissipation capability of the product through System Stability Test, and provide real-time updated voltage and temperature to monitor the thermal performance of the product. FurMark The performance of the graphics card is measured by the fur rendering algorithm. We will use the two softwares to perform the double baking test on the machine. It is worth mentioning that in actual use, the use of long time and high load is relatively rare, so it is usually not Will reach the temperature in the test results.

The test prototype continued to run for 2 hours, 27 minutes and 58 seconds with the CPU full load, and the CPU temperature has stabilized.

It can be seen from the image generated by the infrared thermometer that at room temperature of 27 ° C, the high temperature region is mainly concentrated near the heat dissipation hole (the highest temperature is 51.5 ° C, the lowest temperature is 41.0 ° C), and the temperature in the left half of the keyboard is higher. (The average temperature is 44.3 ° C), which may have a certain impact on the actual situation.

In the D side of the fuselage, the high temperature area is concentrated at the air inlet, and the maximum temperature reaches 58 °C. Overall, the thermal performance of this business book is more general, there is a certain room for improvement.

Fourth, PConline evaluation room summary

● Product information and test results

● Evaluation summary

As the latest product of Latitude series, Dell Latitude 7390 continues the consistent high-end level of this series of business books, professional and rigorous body design, high performance performance, and long-lasting life time to meet the needs of users in different scenarios. , This product is not conservative in the design concept, adding a narrow border, 180 ° opening and closing, eight generations of Core processors and other new elements. In addition, Latitude 7390 configuration can be customized according to user needs, Dell also provides for it A full range of after-sales service. For users who pay attention to quality and experience, Dell Latitude 7390 is a good choice.