A Principled Technologies report: Hands-on testing. Real-world results.

Work happy on the go with greater unplugged performance and longer battery life using an HP EliteBook 645 G10 Notebook PC

vs. a Dell Latitude 5440 laptop

Notebook users shouldn’t have to compromise device performance to squeeze out a few more hours of battery life. Many users expect consistent performance from a device, whether they plug devices in at an office or coworking space or they need to unplug during their commute or at their airport terminal. And when they’re completing mission-critical work on the go, mobile trailblazers need a solution that can deliver both the battery life to complete their workday and performance that won’t slow them down. But with so many compelling choices on the market with high-performance processors, it can be difficult to know which device can best empower a mobile trailblazer.

At PT, we used industry-standard benchmarks to provide real-world battery life estimates and highlight crucial differences between plugged-in and unplugged system performance on an HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor and a Dell Latitude 5440 laptop powered by an Intel® Core i7-1355U processor. For personal comfort, we also hand-measured how hot and loud each became while running a CPU-intensive workload. We found that the HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor generally delivered better mission-critical performance unplugged and longer battery life than the Dell Latitude 5440 laptop powered by an Intel Core i7-1355U processor.

Benefit from up to 13 hours and 44 minutes of uninterrupted battery life based on MobileMark 2018 results. With Windows power set to “best power efficiency” mode. Work unplugged without sacrificing system performance based on PassMark and Cinebench results. Stay comfortable with a cooler and quieter laptop based on hot-spot temp and acoustic readings under load.

What we tested

Before we started testing, we set the 14-inch Windows 11 Pro business laptops to “best performance” power mode. For the MobileMark® 2018 battery life tests, we set screen brightness to 205 nits and conducted “best performance” and “best power efficiency” power mode comparisons. We then reset screen brightness to 255 nits for the MobileMark 25 battery life comparisons. Other than making and verifying those changes, we used out-of-box OEM performance settings for both laptops. We tested the following systems:

HP EliteBook 645 G10 Notebook PC. AMD Ryzen 7 7730U processor (GHz 2.0 – 4.5) with Radeon graphics. 8 cores with 16 threads. 32 GB of dual-channel memory. 512 GB of PCIe NVMe SSD storage. 51 WHr battery. Dell Latitude 5440 laptop. Intel Core i7-1355U processor (GHz 1.7 – 5.0) with integrated Intel UHD graphics. 10 cores with 12 threads. 32 GB of dual-channel memory. 512 GB of PCIe NVMe SSD storage. 54 WHr battery.

We ran the following performance-based benchmark tests twice—once with the laptops plugged in and again unplugged while in “best performance” power mode:

  • PassMark PerformanceTest 11
  • Cinebench R23

To test battery life and efficiency, we ran MobileMark 2018 and MobileMark 25 benchmarks twice—once in “best performance” power mode and again in “best power efficiency” power mode. For our surface temperature comparisons, we ran a sustained Cinebench R23 workload for 50 minutes, taking keyboard and bottom hot-spot temperature readings every 10 minutes. We then ran the CPU-intensive workload again for 20 minutes to determine how much noise each laptop’s fan produced under load.

The benchmark scores and battery life results we report reflect the specific configurations we tested. Any difference in the configurations, as well as screen brightness, network traffic, or software additions, can affect these results. For a deeper dive into our testing parameters and procedures, see the science behind the report.

Performance benchmark results: Work unplugged without big performance losses

A large part of any mobile workforce’s daily routine is switching back and forth between documents, websites, and apps. In fact, researchers in a Harvard Business Review case study found that mid-or back-office users across three Fortune 500 companies toggled between apps and websites an average of nearly 1,200 times each day.4 This is one reason our real-world performance, battery life, heat, and noise comparisons under load are so important. With them, teams can focus on completing mission-critical work from anywhere without worry.

Boost mobile productivity

PassMark PerformanceTest is a productivity benchmark that gathers CPU, disk, memory, and 2D/3D graphics performance metrics before combining the individual component metrics to create a single, overall score, called the PassMark rating. The bigger the overall rating number, the faster the device.5

Better handle demanding workloads

The Cinebench R23 benchmark measures system performance by completing common Cinema 4D tasks that tax multiple CPU cores and modern processor features.6

Chart of PassMark PerformanceTest plugged-in vs. unplugged performance benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has a 4,277.0 plugged-in score and 3,831.7 unplugged score. Dell Latitude 5440 laptop has a 4,801.8 plugged-in score and 3,401.6 unplugged score. Only a 10.4 percent performance drop with the EliteBook 645 G10 vs. a 29.1 percent drop with the Latitude 5440 laptop.
PassMark PerformanceTest benchmark results. Higher is better. Source: Principled Technologies.
Chart of Cinebench R23 plugged-in vs. unplugged performance multi-core benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has a 9,672 plugged-in score and 9,626 unplugged score. Dell Latitude 5440 laptop has a 10,533 plugged-in score and 6,393 unplugged score. Only a 0.4 percent performance drop with the EliteBook 645 G10 vs. a 39.3 percent drop with the Latitude 5440 laptop.
Cinebench R23 (multi-core) benchmark results. Higher is better. Source: Principled Technologies.

Battery life and efficiency results: Work where you want, no strings (or cables) attached

While a battery life estimate can be helpful in determining potential performance, running just one test is like trying to paint a portrait with a just a few brushstrokes. An onlooker may begin to discern a general shape and outline, but they could still misjudge what they see. With results from multiple tests, you can paint a fuller picture of battery life performance. To paint our performance picture, we ran battery tests in multiple configurations, including MobileMark 2018, which measures battery life and performance at the same time. It uses real applications, workloads, and data sets to quantify how overall system performance affects the user experience.7 The second test we ran, MobileMark 25, puts devices through scenarios based on the real-world applications and activities business users encounter every day.8 In these tests, we saw a clearer picture of the battery life users might expect from both devices.

Chart of MobileMark 2018 “best power efficiency” mode battery life testing (205 nits) benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has 13 hours and 44 minutes of battery life, 16.2 minutes per WHr, and a 681 performance score. Dell Latitude 5440 laptop has 10 hours and 53 minutes of battery life, 12.1 minutes per WHr, and a 560 performance score.
MobileMark 2018 battery life (“best power efficiency” mode) benchmark results. Higher is better. Source: Principled Technologies.
Chart of MobileMark 2018 “best performance” mode battery life testing (205 nits) benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has 10 hours and 49 minutes of battery life, 12.7 minutes per WHr, and a 1,251 performance score. Dell Latitude 5440 laptop has 9 hours and 45 minutes of battery life, 10.8 minutes per WHr, and a 1,487 performance score.
MobileMark 2018 battery life (“best performance” mode) benchmark results. Higher is better. Source: Principled Technologies..
Chart of MobileMark 25 “best power efficiency” mode battery life testing (205 nits) benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has 12 hours and 36 minutes of battery life, 14.8 minutes per WHr, and a 405 performance score. Dell Latitude 5440 laptop has 9 hours and 36 minutes of battery life, 10.7 minutes per WHr, and a 263 performance score.
MobileMark 25 battery life (“best power efficiency” mode) benchmark results. Higher is better. Source: Principled Technologies.
Chart of MobileMark 25 “best performance” mode battery life testing (205 nits) benchmark results. Higher is better. HP EliteBook 645 G10 Notebook PC has 9 hours and 5 minutes of battery life, 10.7 minutes per WHr, and a 498 performance score. Dell Latitude 5440 laptop has 8 hours and 7 minutes of battery life, 9.0 minutes per WHr, and a 575 performance score.
MobileMark 25 battery life (“best performance” mode) benchmark results. Higher is better. Source: Principled Technologies.

For more information on the test laptops, our nit choices, and testing parameters and procedures, see the science behind the report.

Thermal testing results: Stay comfortable without overheating

High-performance processors put off a lot of heat—but laptop manufacturers understand that and dissipate the heat to keep both users and the hardware safe from harm. So, what’s an acceptable temperature when laptops are running CPU-intensive loads like the Cinebench R23 workload we ran for 50 minutes? According to the Make Use Of newsletter, anything under 140°F/60°C is “perfect” in computer-land.9 We took temperature readings every 10 minutes to see how each device compared.

The higher Cinebench R23 performance scores and the well-within-normal-range underside temp (118.0°F) while running this CPU-intensive workload make the HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor an attractive choice for mobile trailblazers. By contrast, the underside of the Dell 5440 laptop powered by an Intel Core i7-1355U hit 136.1°F, which could make working with it on your lap for extended periods very uncomfortable.

Chart of thermal performance and surface temps during a sustained Cinebench R23 workload. Higher performance scores are better and lower temps are better. HP EliteBook 645 G10 Notebook PC has a sustained score of 9,543, keyboard deck temp of 105.9 degrees Fahrenheit, and underside temp of 118.0 degrees Fahrenheit. Dell Latitude 5440 laptop has a sustained score of 8,040, keyboard deck temp of 110.2 degrees Fahrenheit, and underside temp of 136.1 degrees Fahrenheit.
Thermal testing results. A higher score is better, and lower temperatures are better. Source: Principled Technologies.

Acoustic testing results: Keep it quiet

A noisy laptop can be a distraction for anyone—especially mobile trailblazers trying to complete mission-critical tasks as quickly as possible. When we measured the noise levels of each device while idle and while running a Cinebench R23 multi-core workload, we saw that the HP EliteBook 645 G10 Notebook PC was noticeably quieter, with average noise levels under load that were almost six decibels lower than the Dell Latitude 5440 laptop noise levels. It’s important to note that the decibel scale is logarithmic, which means it increases by a power of 10 each time. So, 10dBA is ten times more powerful than 0 dBA and a sound that is 30dBA is 1,000 times more powerful than 0 dBA. For scale, 10dBA is normal breathing while 50dBA is a refrigerator.10

Chart of acoustic testing results in A-weighted decibels under load over time. Lower is better. HP EliteBook 645 G10 Notebook PC average noise levels were almost six decibels lower than the Dell Latitude 5440 laptop average noise levels.
Acoustic testing results, in A-weighted decibels. Lower is better. Source: Principled Technologies.

Conclusion

In this hands-on comparison, an HP EliteBook 645 G10 Notebook PC proved to be a better fit for mobile productivity than a Dell Latitude 5440 laptop. In our tests, when going from plugged-in to unplugged, an HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor delivered more consistent performance than a Dell Latitude 5440 laptop powered by an Intel Core i7-1355U processor. Battery life tests indicate that the HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor could deliver longer battery life and greater system efficiency while still achieving strong performance. Additionally, while running a CPU-intensive Cinebench R23 workload, the underside of the HP EliteBook 645 G10 Notebook PC powered by an AMD Ryzen 7 7730U processor ran 18°F cooler and was noticeably quieter than the Dell Latitude 5440 laptop powered by an Intel Core i7-1355U processor.

  1. HP, “HP EliteBook 645 G10 Notebook PC,” accessed June 22, 2023, https://www.hp.com/us-en/shop/pdp/hp-elitebook-645-g10-notebook-pc-customizable-75c13av-mb.
  2. AMD, “AMD Extends its Leadership with the Introduction of its Broadest Portfolio of High-Performance PC Products for Mobile and Desktop,” accessed June 19, 2023, https://www.amd.com/en/newsroom/press-releases/2023-1-4-amd-extends-its-leadership-with-the-introduction-o.html.
  3. AMD, “AMD Ryzen 7 7730U,” accessed June 22, 2023, https://www.amd.com/en/products/apu/amd-ryzen-7-7730u.
  4. Rohan Narayana Murty, Sandeep Dadlani, and Rajath B. Das, “How Much Time and Energy Do We Waste Toggling Between Applications?” accessed June 19, 2023, https://hbr.org/2022/08/how-much-time-and-energy-do-we-waste-toggling-between-applications.
  5. PassMark Software, “PerformanceTest FAQ,” accessed June 20, 2023, https://www.passmark.com/support/performancetest_faq/understanding-results.php.
  6. Maxon, “Cinebench R23,” accessed June 20, 2023, https://www.maxon.net/en/cinebench.
  7. BAPCo, “BAPCo® MobileMark® 2018 White Paper,” accessed June 19, 2023, https://bapco.com/wp-content/uploads/2018/12/MobileMark_2018_White_Paper_v0.1.pdf.
  8. BAPCo, “MobileMark® 25,” accessed June 19, 2023, https://bapco.com/products/mobilemark-25/.
  9. Philip Bates, “PC Operating Temperatures: How Hot Is Too Hot?” accessed June 19, 2023, https://www.makeuseof.com/tag/pc-operating-temperatures-hot-hot.
  10. Elena McPhillips, “Noise levels of everyday sounds,” accessed June 20, 2023, https://www.audicus.com/noise-levels-of-everyday-sounds/.

This project was commissioned by HP and AMD.

August 2023

Principled Technologies is a registered trademark of Principled Technologies, Inc.

All other product names are the trademarks of their respective owners.

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