AMD Ryzen 5 PRO 7640U
AMD Ryzen 5 PRO 7640U: A Balance of Power and Battery Life for Mobile Professionals
April 2025
Architecture and Process Technology: Zen 4 on 4nm — A New Level of Efficiency
The AMD Ryzen 5 PRO 7640U processor is built on the Zen 4 architecture, manufactured using TSMC's 4nm FinFET process. This allows for the integration of 6 cores and 12 threads into a compact chip, which is crucial for thin laptops.
- Cores and Cache: 6 cores (12 threads) with a base frequency of 2.5 GHz and a maximum turbo boost of up to 4.9 GHz. The L3 cache has been increased to 16 MB, which speeds up data processing in multitasking scenarios.
- Integrated Graphics: Radeon 760M based on the RDNA 3 architecture with 8 compute units (512 stream processors) and a frequency of up to 2.6 GHz. This ensures support for 4K displays and light gaming.
- PRO Features: Hardware data protection (Pluton Security), support for virtualization technologies (AMD-V), and remote management (DASH).
Power Consumption and TDP: 28 W for a Balance Between Power and Battery Life
The Ryzen 5 PRO 7640U falls into the category of mobile processors with a TDP of 28 W, making it suitable for ultrabooks and business laptops.
- Flexible Management: AMD Adaptive Power Management dynamically regulates power consumption, reducing it to 15 W in economy mode.
- Thermal Design: Even under peak load, the chip rarely exceeds 85°C thanks to the 4nm process and optimized cooling systems in laptops (e.g., Lenovo ThinkPad T16 Gen 3).
Performance: From Office Tasks to Light Gaming
Geekbench 6 test results (2078/8278) place the Ryzen 5 PRO 7640U alongside top mobile CPUs from previous years.
- Office Tasks: In Microsoft Office, a browser with 20+ tabs, and Zoom, the processor maintains power reserves. For instance, rendering a PDF presentation in Adobe Acrobat takes 18% less time than with the Intel Core i5-1340P.
- Multimedia: Converting a 30-minute 1080p video in HandBrake takes 7 minutes (compared to 9 minutes with Apple M2).
- Gaming: In Dota 2 at medium settings (1080p) — 65–70 FPS, in CS:GO — 90–100 FPS. For AAA titles, an external GPU will be required.
- Turbo Mode: When plugged in, the chip maintains frequencies at 4.5–4.7 GHz for up to 10 minutes, after which it drops to 4.1 GHz to prevent overheating.
Use Cases: Who Should Consider the Ryzen 5 PRO 7640U?
- Mobile Professionals: Lawyers, analysts, and programmers working with IDEs (VS Code, IntelliJ) and virtual machines.
- Students and Freelancers: Streaming, photo editing in Lightroom, rendering simple 3D graphics.
- Travelers: Lightweight laptops weighing from 1.2 kg (e.g., HP EliteBook 845 G10) with up to 12 hours of battery life.
Battery Life: Up to 12 Hours of Work Without a Plug
Thanks to the 4nm process and AMD Power Efficiency optimizations, laptops with the Ryzen 5 PRO 7640U demonstrate outstanding battery life:
- Web Browsing (Wi-Fi): 10–12 hours at 150 nits brightness.
- Video Playback: Up to 14 hours (PCMark 10 test).
- Heavy Tasks: 4–5 hours while rendering in Blender.
Power-Saving Technologies:
- AMD Precision Boost 2: Point frequency boosting of only active cores.
- Adaptive Dimming: Reducing display frequency while working with text.
Comparison with Competitors: Against Intel, Apple, and Previous Generations
- Intel Core i5-1350U (7nm): The Ryzen 5 PRO 7640U is faster in multithreaded tasks (~25%) and more energy-efficient (30% less power consumption under load).
- Apple M2: The M2 excels in battery life (1–2 hours longer) and single-core tests, but falls short in multitasking (8278 vs 7900 in Geekbench 6 Multi-Core).
- Previous Generation (Ryzen 5 6600U): A performance increase of 22% due to Zen 4 and the increased cache.
Pros and Cons
Strengths:
1. High multithreaded performance.
2. Energy efficiency of the 4nm process.
3. Powerful integrated graphics for iGPU.
4. PRO-level data protection.
Weaknesses:
1. Limited selection of gaming laptops with this CPU.
2. Requires good cooling in Turbo mode.
Laptop Selection Recommendations
- Device Type: Ultrabooks (Dell XPS 13, ASUS ZenBook 14) or business laptops (Lenovo ThinkPad, HP EliteBook).
- What to Look For:
- Cooling: Dual-fan systems (like in ThinkPad T16).
- Display: IPS panel with a resolution of at least 1920×1200.
- Ports: 2x USB4 (Thunderbolt 4), HDMI 2.1.
- Battery: At least 60 Wh.
The average price for laptops with the Ryzen 5 PRO 7640U is $1100–$1400.
Final Conclusion
The AMD Ryzen 5 PRO 7640U is an ideal choice for those in need of a versatile laptop for work and study without compromising on battery life. It outperforms Intel in multithreading and challenges Apple on price (devices with M2 start at $1300). If you're looking for a lightweight device with enterprise-level protection and performance for the next 3–4 years, this processor will provide a reliable foundation.
Examples of laptops from 2025:
- Lenovo ThinkPad X1 Carbon Gen 12 ($1399): 14" 2.8K OLED, 32 GB RAM, 1 TB SSD.
- HP EliteBook 840 G10 ($1199): 16" IPS, 16 GB RAM, 512 GB SSD.