AMD Ryzen 7 4750U
AMD Ryzen 7 4750U: Power and Efficiency in an Ultrabook
In-depth analysis of the processor for thin laptops
Architecture and Process Technology: 7nm for a Balance of Performance and Efficiency
The AMD Ryzen 7 4750U, released in 2020 under the codename Renoir, marked a significant step for AMD in the mobile solutions segment. It is built on TSMC's 7nm process, enabling the integration of 8 Zen 2 cores and 16 threads in a compact form factor. The base frequency is 1.7 GHz, and in Turbo Boost mode, it reaches up to 4.1 GHz, providing flexibility for tasks of varying loads.
Architecture Features:
- Zen 2: Cores optimized for multithreading, which is critical for rendering, video encoding, and parallel tasks.
- Integrated Radeon Vega 8 Graphics: 8 compute units (512 stream processors) with a frequency of up to 2100 MHz. This is one of the most powerful integrated GPUs in its class, surpassing Intel Iris Xe in gaming.
- Cache Memory: 8 MB of L3 cache accelerates data processing, reducing latency when working with RAM.
TDP 15W: How AMD Balances Power and Battery Life
The 15W TDP (Thermal Design Power) indicates that the processor is designed for ultrabooks and thin laptops with passive or compact active cooling. However, thanks to the 7nm process, the Ryzen 7 4750U demonstrates high energy efficiency:
- In idle mode, cores automatically reduce their frequency to 1.4 GHz, lowering power consumption.
- Precision Boost 2 and Adaptive Power Management technologies dynamically distribute the workload among cores, preventing overheating.
Practical Example: In the ASUS ZenBook 14 with Ryzen 7 4750U and a 67 Wh battery, the cooling system handles prolonged loads without throttling, keeping temperatures below 75°C.
Performance: From Office Work to Casual Gaming
Office Work and Multitasking
With 16 threads, the processor easily handles the simultaneous launch of dozens of browser tabs, Excel spreadsheets, and video conferences. In the PCMark 10 test, it scores about 5200 points, which is 15% higher than the Intel Core i7-1165G7.
Multimedia and Creativity
- Video Editing: In Adobe Premiere Pro, rendering a 4K video takes 20% less time than with the six-core Intel Core i7-10750H (45W).
- Photo Editing: In Lightroom, batch processing of 100 RAW files is completed in 3.5 minutes.
Gaming on iGPU
The Radeon Vega 8 scores around 1200 points in 3DMark Time Spy. This allows for comfortable gameplay in:
- Dota 2 (1080p, medium settings) — 55-60 FPS;
- GTA V (720p, high settings) — 45-50 FPS;
- Fortnite (900p, low settings) — 60 FPS.
Turbo Mode: When plugged in, the processor briefly boosts to 4.1 GHz, speeding up application launches. However, in thin laptops, due to cooling limitations, Turbo mode might operate unstably under prolonged loads.
Use Cases: Who is the Ryzen 7 4750U Suitable For?
1. Students and Office Workers: Ideal for working with documents, Zoom, and light presentation editing.
2. Freelancers: Suitable for web design, programming, and photo editing.
3. Casual Gamers: Sufficient for less demanding games and cloud streaming.
4. Travelers: Compact laptops with this CPU often weigh less than 1.5 kg.
Example Device: Lenovo IdeaPad 5 Pro with Ryzen 7 4750U — 14-inch screen, 16 GB of RAM, battery life up to 12 hours.
Battery Life: How Long Will It Last?
With moderate use (web surfing, YouTube), laptops with the Ryzen 7 4750U can run for 8-10 hours. This is achieved by:
- Effective load distribution among cores.
- Support for LPDDR4X-4266 MHz, which reduces memory power consumption.
- "Battery Saver" mode in Windows, limiting CPU frequency to 2 GHz.
Tip: For maximum battery life, choose models with a battery of 60 Wh or higher and an IPS display with low power consumption.
Comparison with Competitors: AMD vs Intel vs Apple
- Intel Core i7-1165G7 (Tiger Lake): Better for single-threaded tasks (Geekbench 6 Single-Core — ~1500), but lags in multithreading (Multi-Core — ~4500). Iris Xe graphics are comparable to Vega 8 but require faster memory.
- Apple M1: Leads in energy efficiency (up to 18 hours of battery life) and single-threaded performance (Geekbench 6 Single-Core — 2200), but is limited to 8 GB of RAM in basic models and compatibility with Windows.
- Previous Generation AMD (Ryzen 7 3700U): The Ryzen 7 4750U is 30% faster due to the switch to Zen 2 and 7nm.
Pros and Cons: Is This Processor Worth Choosing?
Strengths:
1. 8 cores and 16 threads in an ultrabook.
2. Powerful integrated graphics.
3. Support for PCIe 3.0 and Wi-Fi 6.
Weaknesses:
1. In gaming, it falls short of discrete GPUs like the MX450.
2. In some laptop models, weak cooling systems limit Turbo mode.
Recommendations for Laptop Selection
1. Device Type: Ultrabook (e.g., HP Envy x360) or business laptop (Dell Inspiron 14).
2. RAM: At least 16 GB DDR4.
3. Storage: NVMe SSD with at least 512 GB.
4. Display: For creativity — 100% sRGB; for gaming — 120 Hz (rare, but available in models with Vega 8).
Important: Check reviews for the cooling system. Models with dual fans (e.g., Acer Swift 3) are less prone to throttling.
Final Conclusion: The Ideal Choice for On-the-Go Professionals
The AMD Ryzen 7 4750U is a processor for those who value a balance between performance and portability. It is suitable for:
- Designers who want to work in Figma or Photoshop without being tethered to a power outlet.
- Engineers who need virtualization and code compilation.
- Students looking for a versatile laptop at a reasonable price.
Key Benefits: You get nearly desktop-level multithreading performance in a 1.3 kg chassis and the ability to play your favorite games without a discrete graphics card. If you're not ready to pay a premium for the Apple M1 and want to stay within the Windows ecosystem—a Ryzen 7 4750U will be an excellent compromise.