Lenovo’s Exclusive AMD Ryzen 7 7840S 30W APU Tested: Slightly Slower Than 45W 7940HS


September 26, 2023 by our News Team

Lenovo's Yoga 14s 2023 Ryzen Edition is a sleek and lightweight laptop powered by the impressive Ryzen 7 7840S processor, boasting a stunning 14-inch OLED display, 10-touch support, and up to 14 hours of battery life, making it an excellent choice for professionals and content creators.

  • Powered by the impressive Ryzen 7 7840S processor
  • 14-inch OLED screen with 10-touch support
  • Battery life of 10-14 hours


Lenovo has recently introduced the latest addition to its Yoga laptop series, the Lenovo Yoga 14s 2023 Ryzen Edition. This sleek and lightweight laptop is powered by the impressive Ryzen 7 7840S processor, which is based on the AMD Phoenix architecture. Unlike other variants of the Ryzen 7 7840 processor, the 7840S model has a lower Thermal Design Power (TDP) of 30W.

The standout feature of the Lenovo Yoga 14s 2023 Ryzen Edition is its use of the Ryzen 7x40S series processors. This laptop exclusively employs the Ryzen 7 7840S APU, although there is also a 6-core variant available called the Ryzen 5 7640S. The focus of Chinese media reviews has been on the 8-core version, which offers similar specifications to the 45W model. It boasts a maximum boost clock of 5.1 GHz for the Zen4-based CPU and 2.7 GHz for the integrated RDNA3 graphics of the Radeon 780M.

Various media outlets have conducted tests on the CPU, including benchmarks such as Cinebench, POV Ray, and the Chinese Ludashi benchmark. The results show that the Ryzen 7 7840S performs only slightly worse than the Ryzen 7 7840HS, which consumes 15W more power. Overall, this variant positions itself between the higher TDP model and the previous-generation Ryzen 9 6900HS in terms of performance.

The Lenovo Yoga 14s 2023 Ryzen Edition features a stunning 14-inch OLED screen with 10-touch support. It offers a resolution of 2944×1840 and a Peak Brightness of 600 units. The display supports a variable Refresh Rate of 60/90Hz and provides full coverage of the DPI-P3 color gamut, ensuring accurate and vibrant colors. This makes it an excellent choice for professionals and content creators. Additionally, the display is certified for Dolby Vision and Display HDR500.

In terms of battery life, the laptop offers approximately 10 to 11 hours of usage according to PC Mark, and this extends to 14 hours with light office work. Under heavy load, the CPU temperature can reach up to 75 degrees Celsius.

Thanks to the support of the custom Ryzen 7 7840S processor with a 30W TDP, the overall performance of the Lenovo Yoga 14s 2023 Ryzen Edition is comparable to that of a 15.6-inch notebook. It even outperforms many thin and light notebooks weighing 1.3kg or less. Even when compared to Laptops weighing around 2kg, its performance remains at the top tier.

The Lenovo Yoga 14s 2023 Ryzen Edition comes in two memory options: 16GB and 32GB. It also features a 1TB SSD for ample storage. The laptop is available in two stylish color options: Mercury Silver and Sunlight Reflection.

Overall, the Lenovo Yoga 14s 2023 Ryzen Edition impresses with its powerful Ryzen 7 7840S processor, stunning OLED display, and solid performance. With its sleek design and impressive specifications, it is a great choice for professionals and content creators alike.

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Background Information


About AMD: AMD, a large player in the semiconductor industry is known for its powerful processors and graphic solutions, AMD has consistently pushed the boundaries of performance, efficiency, and user experience. With a customer-centric approach, the company has cultivated a reputation for delivering high-performance solutions that cater to the needs of gamers, professionals, and general users. AMD's Ryzen series of processors have redefined the landscape of desktop and laptop computing, offering impressive multi-core performance and competitive pricing that has challenged the dominance of its competitors. Complementing its processor expertise, AMD's Radeon graphics cards have also earned accolades for their efficiency and exceptional graphical capabilities, making them a favored choice among gamers and content creators. The company's commitment to innovation and technology continues to shape the client computing landscape, providing users with powerful tools to fuel their digital endeavors.

AMD website  AMD LinkedIn

About Lenovo: Lenovo, formerly known as "Legend Holdings," is a important global technology company that offers an extensive portfolio of computers, smartphones, servers, and electronic devices. Notably, Lenovo acquired IBM's personal computer division, including the ThinkPad line of laptops, in 2005. With a strong presence in laptops and PCs, Lenovo's products cater to a wide range of consumer and business needs. Committed to innovation and quality, Lenovo delivers reliable and high-performance solutions, making it a significant player in the tech industry.

Lenovo website  Lenovo LinkedIn

Technology Explained


APU: An APU, or Accelerated Processing Unit, is a type of processor that combines a CPU and a GPU on a single chip. This type of processor is becoming increasingly popular in the computer industry due to its ability to provide both computing and graphics processing power in a single package. APUs are used in a variety of applications, from gaming PCs to high-end workstations. They are also used in embedded systems, such as those found in smartphones and tablets. The combination of CPU and GPU on a single chip allows for more efficient power consumption and better performance than traditional CPUs. Additionally, APUs are often used in conjunction with other components, such as RAM and storage, to create powerful and efficient systems.


CPU: The Central Processing Unit (CPU) is the brain of a computer, responsible for executing instructions and performing calculations. It is the most important component of a computer system, as it is responsible for controlling all other components. CPUs are used in a wide range of applications, from desktop computers to mobile devices, gaming consoles, and even supercomputers. CPUs are used to process data, execute instructions, and control the flow of information within a computer system. They are also used to control the input and output of data, as well as to store and retrieve data from memory. CPUs are essential for the functioning of any computer system, and their applications in the computer industry are vast.


DPI: DPI (Dots Per Inch) is a measure of the resolution of an image or display. It is used to measure the sharpness of an image or display, and is commonly used in the computer industry. DPI is used to measure the resolution of a computer monitor, printer, or scanner. It is also used to measure the resolution of digital images, such as those used in web design. Higher DPI values indicate higher resolution, which means sharper images and better quality. DPI is also used to measure the accuracy of a mouse or other pointing device. Higher DPI values indicate higher accuracy, which is important for gaming and other precision tasks.


OLED: Organic light-emitting diode (OLED) technology is a cutting-edge display technology that has revolutionized the computer industry by producing superior image quality and superior energy efficiency. OLED technology works by using organic compounds to create an efficient and flexible light source. This type of technology has enabled thinner and lighter designs as well as improved color range and resolution. OLED technology is currently used in laptop displays and is increasingly used in televisions and mobile devices. Its benefits, such as relatively low power consumption and extraordinary brightness, give a more vivid and more powerful image even in dim areas. OLED technology has also improved computer performance, as its power efficiency passes on to other computer components and leads to extended battery life. OLED technology also features shorter response time and full color reproducibility, making it ideal for fast-paced action games.


Peak Brightness: Peak Brightness is a technology that allows monitors to produce very bright images, with more accuracy and contrast than ever before. It is achieved by setting the maximum display level of the monitor to a very high level, creating a more vibrant and realistic picture. In the computer industry, Peak Brightness is mostly used for gaming, professional graphic design, and video production purposes. This is especially helpful when the colors displayed on the monitor need to be exact, such as when creating a logo or fine-tuning artwork for a video game. Peak Brightness also helps in providing a realistic display of the visuals that are being seen on the monitor, making it easier for the user to identify small details. This technology enhances the clarity of the display and brings out the most subtle details in the visuals, allowing the user to experience more immersive visuals than ever before.


Radeon: AMD Radeon, a product line by Advanced Micro Devices (AMD), consists of graphics processing units (GPUs) recognized for their strong performance in gaming, content creation, and professional applications. Powered by innovative technologies like the RDNA architecture, Radeon GPUs deliver efficient and powerful graphics processing. The brand also supports features like FreeSync, enhancing visual fluidity and reducing screen tearing during gaming. Moreover, AMD Radeon GPUs embrace real-time ray tracing for heightened realism in lighting and reflections. With a balance between price and performance, Radeon competes with NVIDIA's GeForce graphics cards and remains a popular choice for a wide range of users.


Refresh Rate: The technology refresh rate is a measure of how often a computer system is updated with new hardware and software. It is an important factor in the computer industry, as it determines how quickly a system can be upgraded and how well it can handle new applications. The refresh rate is usually measured in years, and it is important for businesses to keep their systems up to date in order to remain competitive. A higher refresh rate means that the system can handle more applications and can be upgraded more quickly. This can be beneficial for businesses that need to keep up with the latest technology trends. Additionally, a higher refresh rate can help reduce the cost of maintaining a system, as newer hardware and software can be more efficient and cost-effective.


SSD: A Solid State Drive (SSD) is a modern data storage device that employs flash memory technology to store data electronically. Unlike traditional hard disk drives (HDDs), SSDs have no moving parts, resulting in significantly faster read and write speeds. This leads to quicker boot times, faster application loading, and smoother overall system performance. SSDs are known for their durability, shock resistance, and energy efficiency, making them ideal for laptops, ultrabooks, and other portable devices. They come in various form factors, including 2.5-inch, M.2, and PCIe cards, and are favored for their reliability, quiet operation, and reduced heat generation





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