8GB RAM vs 4GB RAM Mini PCs: Which Should You Buy?
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Choosing between an 8GB RAM vs 4GB RAM mini PC depends on your multitasking needs. Both Lenovo models run Windows 11 Pro and fit in tight spaces. The main difference is memory capacity and processing power. One offers eight gigabytes of RAM with a hexa-core Intel chip. The other provides four gigabytes with a dual-core AMD processor. This guide compares their specifications to help you decide which fits your workflow.
Key differences
| Aspect | Lenovo ThinkCentre Core i5 Mini PC | Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC |
|---|---|---|
| Processor | Intel Core i5-8400T (Hexa-Core) | AMD A9-9420e (Dual-Core) |
| Memory | 8GB DDR4 RAM | 4GB RAM |
| Storage | 250GB NVMe SSD | 500GB HDD |
| Graphics | Integrated Intel Graphics | AMD Radeon R5 Graphics |
| Networking | 5G WiFi + Bluetooth | Wired Ethernet (RJ-45) |
Which one should you choose?
Choose Lenovo ThinkCentre Core i5 Mini PC if
- You need to run multiple applications and browser tabs simultaneously without slowdowns.
- You prefer faster load times from an NVMe SSD over larger raw capacity.
- You require wireless connectivity for WiFi and Bluetooth devices.
Choose Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC if
- You are on a tighter budget and only need basic productivity tasks.
- You need more total storage space for files and documents.
- You primarily use wired connections and do not need wireless features.
Verdict: The 8GB RAM model suits users who multitask heavily or need faster storage performance. The 4GB RAM model is a practical choice for basic office tasks where storage capacity matters more than speed. Select the option that aligns with your specific daily computing requirements.
Memory and Processor Comparison
memory capacity
Memory size directly impacts how many applications you can run at once. Product A, the Lenovo ThinkCentre Core i5 Mini PC, comes with 8GB of DDR4 RAM. This allows for smoother multitasking when you have several browser tabs and office documents open. Product B, the Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC, includes only 4GB of high-bandwidth RAM. While sufficient for basic tasks, 4GB may cause slowdowns if you try to run multiple heavy applications simultaneously. For users who need to keep more programs active without lag, the larger memory pool in Product A provides a clear advantage.
processor power
The processor determines how quickly your computer handles tasks. Product A features an Intel Core i5 8th Gen Hexa-Core processor, specifically the i5-8400T model. This six-core chip offers substantial processing power for everyday multitasking and business productivity. In contrast, Product B uses an AMD A9-9420e Dual-Core processor. With only two cores and a maximum turbo frequency of 2.60 GHz, it is designed for lighter workloads. If you perform demanding work or run complex software, the hexa-core architecture in Product A will deliver significantly faster performance than the dual-core option in Product B.
storage type
Storage speed affects how fast your system boots and loads files. Product A is equipped with a 250GB NVMe M.2 SSD. NVMe drives are known for very fast read and write speeds, leading to quick load times for applications and the operating system. Product B uses a 500GB HDD. Hard disk drives offer more total storage space but operate much slower than SSDs. This means Product B will take longer to start up and open large files. If speed is your priority, the NVMe SSD in Product A is superior, even though Product B provides double the storage capacity.
wireless connectivity
Connectivity options determine how easily you can link to networks and peripherals. Product A includes a built-in WiFi and Bluetooth adapter, supporting 5G WiFi. This allows you to connect to wireless networks and devices like headphones or mice without extra cables. The data for Product B does not explicitly list wireless capabilities in its features or key specs, only mentioning wired ports like USB and RJ-45. If you rely on wireless connections for a clean desk setup, Product A offers a distinct advantage by including both WiFi and Bluetooth support out of the box.
form factor
Physical dimensions matter for placement on or behind your monitor. Product A measures 13.5 inches in width, 19 inches in length, and 2.5 inches in height. It weighs 2.91 pounds. Product B is significantly smaller, measuring 7.05 inches wide, 7.2 inches long, and 1.44 inches high, weighing 2.9 pounds. The Tiny form factor of Product B is ideal for mounting behind a VESA-compatible monitor or in very tight spaces. Product A, while still compact as a Micro model, is larger and may not fit in the smallest enclosures. For maximum space saving, Product B is the better choice.
Which Mini PC Fits Your Needs
Office workers needing smooth multitasking
You should choose this Lenovo ThinkCentre model if you run multiple applications simultaneously. The 8GB DDR4 RAM prevents slowdowns when switching between browser tabs and office software. The Intel Core i5 processor handles background tasks efficiently, ensuring your workflow remains uninterrupted during busy workdays.
Users prioritizing compact size for mounting
This Lenovo ThinkCentre Tiny model is ideal if space is your primary constraint. It measures just 1.44 inches in height, allowing it to mount discreetly behind a monitor. While it has 4GB of RAM and an AMD dual-core processor, its small footprint makes it perfect for tight desk setups.
Budget-conscious buyers needing basic storage
If you need reliable storage for documents and media without high costs, this model offers 500GB of HDD space. It runs Windows 11 Pro and includes essential ports like USB 3.0 and DisplayPort. The 4GB RAM is sufficient for light browsing and single-app usage for casual users.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Lenovo ThinkCentre Core i5 Mini PC | Office users needing 8GB RAM | Check price of Lenovo ThinkCentre Core i5 Mini PC on Amazon |
| 2 | Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC | light office tasks on a budget | Check price of Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC on Amazon |
The products compared
Lenovo ThinkCentre Core i5 Mini PC
Best for: Office users needing 8GB RAM
- Memory
- 8GB RAM (what this guide is about)
- Processor
- Intel i5-8400T
- Installed RAM
- 8GB
- Storage Capacity
- 250GB NVMe
- Memory Type
- DDR4
- Operating System
- Windows 11 Pro
View on Amazon: Lenovo ThinkCentre Core i5 Mini PC Affiliate link
The Lenovo M720Q is a compact desktop built for everyday tasks. It uses an Intel Core i5-8400T processor and comes with 8GB of DDR4 RAM. This memory amount allows for smoother multitasking than 4GB systems. It includes a 250GB NVMe drive and Windows 11 Pro. The small footprint fits well in tight spaces.
Pros
- 8GB DDR4 RAM for better multitasking
- Intel Core i5-8400T hexa-core processor
- 250GB NVMe storage for fast load times
- Windows 11 Pro pre-installed
- Compact micro form factor design
Cons
- 250GB storage capacity is limited
- 8th generation Intel processor is older
- 8GB RAM may limit heavy workloads
Good fit if
- You need 8GB RAM for smoother multitasking
- You want a compact office desktop
- You require Windows 11 Pro
Skip if
- You need more than 8GB of RAM
- You want the latest generation processor
- You require large storage capacity
Verdict: Lenovo M720Q Mini PC i5 8GB RAM is a solid choice for users who need more memory than 4GB offers. It suits office workers who value a small footprint and reliable performance.
Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC
Best for: light office tasks on a budget
- Memory
- 4GB RAM (what this guide is about)
- Processor
- AMD A9-9420e
- Installed RAM
- 4GB
- Storage Capacity
- 500GB HDD
- Graphics
- AMD Radeon R5
- Ethernet Ports
- 1 x RJ-45
View on Amazon: Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC Affiliate link
This Lenovo ThinkCentre M625q Tiny is a small business desktop with 4GB of RAM and a 500GB HDD. It uses an AMD A9-9420e dual-core processor and runs Windows 11 Pro. The compact chassis measures 7.05 by 7.2 inches. You can connect peripherals via USB 3.0 and DisplayPort. This model suits users who need basic multitasking for office tasks without heavy software demands.
Pros
- 4GB high-bandwidth RAM supports multiple browser tabs and applications
- 500GB HDD provides storage for bootup and data transfer
- Windows 11 Pro includes pre-configured app layouts for productivity
- Compact dimensions allow for flexible mounting or desk placement
Cons
- 4GB RAM limits heavy multitasking compared to 8GB options
- HDD is slower than SSD storage for data access
- Dual-core processor may struggle with intensive workloads
Good fit if
- You need a basic desktop for office applications
- You want Windows 11 Pro for business features
- You prefer a compact form factor for limited desk space
Skip if
- You require fast storage speeds for large files
- You need to run memory-intensive professional software
- You want high-performance gaming or video editing
Verdict: Lenovo M625q Tiny 4GB RAM Mini PC fits users who need a reliable, compact system for light office work. It lacks the speed and memory for demanding tasks, making it a niche option for basic computing needs.
Specifications side by side
| Spec | Lenovo ThinkCentre Core i5 Mini PC | Lenovo ThinkCentre Tiny AMD Dual-Core Mini PC |
|---|---|---|
| Processor | Intel i5-8400T | AMD A9-9420e |
| Installed RAM | 8GB | 4GB |
| Storage Capacity | 250GB NVMe | 500GB HDD |
| Memory Type | DDR4 | not stated |
| Graphics | not stated | AMD Radeon R5 |
| Ethernet Ports | not stated | 1 x RJ-45 |
| Operating System | Windows 11 Pro | Windows 11 Pro |
| Memory | 8GB RAM | 4GB RAM |
| Use | Home, Office | Business |
| Dimensions | 19 × 13.5 × 2.5 inches | 7.2 × 7.05 × 1.44 inches |
| Weight | 2.91 pounds | 2.9 pounds |
| Size | 401.25 cubic inches | not stated |
| Color | Black | Black |
| Model | M720Q | ThinkCentre M625q |
Frequently asked questions
Can 4GB RAM handle Windows 11 smoothly?
Yes, but only for light tasks. The Lenovo ThinkCentre M625q Tiny runs Windows 11 Pro with 4GB of RAM. It suits basic office work like word processing or email. You may notice slowdowns if you open many browser tabs or run multiple apps at once.
Is 8GB RAM better for multitasking?
It is significantly better for multitasking. The Lenovo ThinkCentre Core i5 Mini PC includes 8GB of RAM. This capacity allows you to switch between browser tabs and office software without lag. It provides a smoother experience when juggling several applications simultaneously.
Which mini PC is best for office use?
The Lenovo ThinkCentre Core i5 Mini PC is ideal for office users. It features an Intel Core i5 processor and 8GB of RAM. This combination ensures reliable performance for daily tasks. It also runs Windows 11 Pro, offering professional features for business environments.
Does the 4GB model support business software?
Yes, it supports business software. The Lenovo ThinkCentre M625q Tiny is designed for business use. It comes with Windows 11 Pro installed. While it handles light office tasks well, it may struggle with demanding applications due to its limited 4GB memory capacity.
How small are these mini PCs?
They are very compact. The ThinkCentre M625q Tiny measures 7.2 inches in length and weighs 2.9 pounds. The larger Core i5 model is bigger, measuring 19 inches in length and weighing 2.91 pounds. Both fit easily on a desk or mount behind a monitor.
Do these models come with Windows installed?
Yes, both include Windows 11 Pro. The Lenovo ThinkCentre Core i5 Mini PC ships with this operating system. The ThinkCentre M625q Tiny also includes Windows 11 Pro. This ensures you have the latest features and security updates right out of the box.
Is the Core i5 processor faster than the AMD dual-core?
The Intel Core i5 generally offers more power. The Lenovo ThinkCentre Core i5 Mini PC uses a hexa-core processor. The M625q Tiny uses an AMD dual-core chip. The i5 model handles heavier workloads better, while the AMD model is sufficient for basic computing needs.
Can I use these for home entertainment?
The Core i5 model is better for home use. It offers 8GB of RAM and a powerful Intel Core i5 processor. This setup handles media playback and light gaming more effectively. The 4GB model is limited to basic tasks and may not provide a smooth experience for media-heavy activities.

