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日本Dell Latitude 16 7640 review – it’s literally quiet and fast
Temperatures and comfort, Battery Life
Max CPU load
In this test we use 100% on the CPU cores, monitoring their frequencies and chip temperature. The first column shows a computer’s reaction to a short load (2-10 seconds), the second column simulates a serious task (between 15 and 30 seconds), and the third column is a good indicator of how good the laptop is for long loads such as video rendering.
Average P-core frequency; Average E-core frequency; CPU temp.; Package Power
| Intel Core i7-1365U (15W TDP) | 0:02 – 0:10 sec | 0:15 – 0:30 sec | 10:00 – 15:00 min |
|---|---|---|---|
| Dell Latitude 16 7640 | 3.53 GHz @ 2.66 GHz @ 73°C @ 44W | 3.50 GHz @ 2.63 GHz @ 86°C @ 44W | 2.79 GHz @ 2.04 GHz @ 72°C @ 28W |
The Core i7-1365U can maintain stable ~3.50 GHz for the P cores and ~2.60 GHz for the E cores in short and medium loads which is a very good result. In the long run, the performance cores can boost close to the 2.80 GHz mark and we can see a 2.04 GHz frequency for the efficient cores. That’s why the Dell Latitude 16 7640 feels very responsive no matter the task.
Gaming comfort
Even in “Ultra Performance” mode, the two fans are literally quiet (but not silent) during heavy CPU load. In this scenario, the left and the central part of the keyboard (as well as the two palm rest zones) feel warm but that’s okay for normal usage.
Battery
Now, we conduct the battery tests with the Windows Better performance setting turned on, screen brightness adjusted to 120 nits and all other programs turned off except for the one we are testing the notebook with. The 57Wh battery lasts for 12 hours and 30 minutes of Web browsing, or 11 hours and 6 minutes of video playback. That’s a great result for such a capacity!
In order to simulate real-life conditions, we used our own script for automatic web browsing through over 70 websites.
For every test like this, we use the same video in HD.
