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日本HP EliteBook 845 G10 review – fast office machine with powerful and efficient Zen 4 CPU
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 core frequency (base frequency + X); CPU temp.
| AMD Ryzen 7 PRO 7840U (15W TDP) | 0:02 – 0:10 sec | 0:15 – 0:30 sec | 10:00 – 15:00 min |
|---|---|---|---|
| HP EliteBook 845 G10 | 3.76 GHz @ 46°C @ 29.2W | 3.41 GHz @ 54°C @ 25W | 3.18 GHz @ 72°C @ 25W |
The base clock of the Ryzen 7 PRO 7840U is 3.30 GHz. Here, the CPU can sustain ~3.20 GHz in long periods of 100% load so we can call it a day. In this case, the power limit is 25W and the chip temperature is 72°C. This reminds us that the processor thermals are super low in short and medium stress which is great.
Comfort during full load
Since there are no presets in the HP Power Manager software, you have to use the default Windows modes to control the performance. The CPU is near-silent even when the CPU is doing the heavy lifting for a long time. In this case, the keyboard feels a bit warm in the middle so you can use the laptop comfortably for typing. The fan will not spin in idle if you uncheck the “Fan always on while on AC Power” function in the BIOS.
Battery
Now, we conduct the battery tests with 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. Our configuration is equipped with a 51.3Wh battery. It lasts for 12 hours and 30 minutes of either Web browsing or video playback. The result is very good! To achieve that, you have to select the “HP Optimized (Modern Standby)” power plan that can be found in the Control Panel’s Power Options sub-menu. Also, you have to apply the “Balanced” preset in the Windows “Power & Battery” section.
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.
