When it comes to serious chainsaw power, professionals and enthusiasts often look to the top-tier models designed for the most demanding tasks. In this comparison, we’ll take a deep dive into three heavyweight contenders: the legendary STIHL MS 880, its modern successor the STIHL MS 881, and the budget-friendly alternative, the Farmertec 660 (often sold under the Holzfforma Blue Thunder name). Each of these chainsaws brings something unique to the table, whether it’s legacy performance, updated engineering, or unbeatable price. Let’s break down their differences, strengths, and ideal uses.
1. STIHL MS 880: The Legacy Beast
The STIHL MS 880 was once the king of professional-grade chainsaws, known for its massive power and reliability in the field. Designed for felling massive trees, milling lumber, and working in tough forestry conditions, the MS 880 earned a reputation for being one of the most powerful chainsaws in the STIHL lineup.
Key Features:
- Engine Displacement: 121.6 cc
- Power Output: 6.4 kW (approximately 8.6 horsepower)
- Bar Length Compatibility: Up to 59 inches
- Weight: Around 9.8 kg (21.6 lbs) without bar and chain
Performance:
The MS 880 is a raw powerhouse. It’s capable of slicing through thick hardwood with ease and is a favorite among sawmill operators who use it with chainsaw mills. Despite its weight, it maintains a surprisingly smooth operation thanks to STIHL’s anti-vibration technology. However, it lacks some modern features found in newer models, such as an electronic fuel injection system.
Downsides:
- No longer in production (parts can be hard to find)
- Lacks updated emissions and fuel efficiency technology
- Heavier than newer counterparts
2. STIHL MS 881: The Modern Giant
The STIHL MS 881 replaced the MS 880, offering updated emissions compliance and slight performance improvements. It’s the most powerful chainsaw in the current STIHL range and is designed for the same high-demand tasks: milling, commercial forestry, and felling massive trees.
Key Features:
- Engine Displacement: 121.6 cc (same as MS 880)
- Power Output: 6.4 kW
- Bar Length Compatibility: Up to 59 inches
- Weight: 9.9 kg (21.8 lbs)
- Complies with EU Stage V emissions regulations
Performance:
While the displacement and power remain the same as the MS 880, the MS 881 brings better fuel efficiency and lower emissions. It also benefits from slightly improved engine design and air filtration. Starting the MS 881 feels more refined, and it holds power better under load. Professionals upgrading from the MS 880 will notice better throttle response and a cleaner running engine.
Downsides:
- Expensive
- Still a heavy saw (not ideal for casual users)
- May be overkill for anything smaller than large hardwood trees
3. Farmertec 660 (Holzfforma Blue Thunder): The Budget Challenger
Farmertec, a Chinese company, produces chainsaws that are replicas of older STIHL models. The Farmertec 660 is modeled after the STIHL MS 660, and it has gained popularity for its affordability. Many users buy this saw as a cheaper alternative for milling and occasional heavy-duty use.
Key Features:
- Engine Displacement: Around 91.6 cc
- Power Output: Estimated at 5.0–5.2 kW
- Bar Length Compatibility: Up to 36 inches
- Weight: Roughly 7.9 kg (17.4 lbs) without bar and chain
Performance:
While it’s clearly not as powerful as the MS 880 or 881, the Farmertec 660 holds its own for the price. It’s well-suited for users who need a powerful saw but can’t justify spending thousands. Many users report good performance with chainsaw mills or firewood tasks. However, since it’s a clone, quality control can vary, and some parts may wear out faster than with a STIHL.
Pros:
- Very affordable
- Compatible with many STIHL parts
- Great for hobbyist milling or backup use
Cons:
- Not built to STIHL’s quality standards
- Variable performance and durability
- May require tuning or part replacement sooner
Head-to-Head Comparison Table
| Feature | STIHL MS 880 | STIHL MS 881 | Farmertec 660 |
|---|---|---|---|
| Engine Displacement | 121.6 cc | 121.6 cc | ~91.6 cc |
| Power Output | 6.4 kW | 6.4 kW | ~5.0–5.2 kW |
| Weight (without bar) | 9.8 kg | 9.9 kg | 7.9 kg |
| Max Bar Length | 59 in | 59 in | 36 in |
| Emissions Compliance | Older standards | EU Stage V | Non-certified |
| Price Range (USD) | Discontinued | $2,000–$2,400 | $200–$350 |
| Intended Users | Professionals | Professionals | DIY / Hobbyists |
Which Chainsaw Should You Choose?
For Professionals:
If you work in forestry or need a saw for commercial chainsaw milling, the STIHL MS 881 is the clear choice. It offers all the power of the MS 880 with better emissions and support for the future. Though it’s expensive, it pays off in durability, dealer support, and long-term reliability.
For Collectors or Hardcore STIHL Fans:
The MS 880 still holds a legendary status. If you find a well-maintained used one, it’s a solid investment—especially for collectors or those who appreciate classic engineering.
For Budget-Conscious Users:
The Farmertec 660 makes sense for occasional use. Whether you’re milling part-time or cutting firewood on a large property, this saw offers impressive value. Just be prepared to perform regular maintenance, and know that part quality may vary.
Final Thoughts
The STIHL MS 880, MS 881, and Farmertec 660 represent three different price points and user groups. The MS 881 is the best choice for professional users who need the latest performance and emissions standards. The MS 880 remains a beloved classic for those who want raw power and are willing to buy used. Meanwhile, the Farmertec 660 is ideal for hobbyists who want a powerful saw at a fraction of the cost.
Your choice ultimately depends on your budget, how often you’ll use the saw, and how much you value long-term reliability versus upfront cost. Each saw has a role—and when matched to the right task, all three can deliver impressive results.
