Synology vs QNAP NAS – Which Should You Buy in 2025?

When choosing a NAS solution in 2025, two brands dominate the conversation: Synology and QNAP. These Taiwan-based companies have evolved their offerings significantly over the years, adapting to changing user needs in backup, multimedia, virtualization, and enterprise storage. Synology, with a strong emphasis on software polish and ecosystem integration, continues to appeal to users who prioritize stability and consistency. QNAP, by contrast, leans into offering higher-spec hardware, customization, and flexibility, targeting tech-savvy users who want granular control over their system. This article explores how the two compare across hardware, storage capabilities, software platforms, security, pricing, and overall value. Both Synology and QNAP share a lot of baseline features: multi-platform support across Windows, Mac, and Linux; mobile apps for Android and iOS; web-based GUIs; encryption; multi-user access; and strong community ecosystems. Yet important distinctions emerge as you look deeper. These differences often boil down to Synology delivering a more consistent, “appliance-like” experience, while QNAP offers broader hardware choices and wider compatibility. Neither brand is universally better, but each fits different user priorities. Let’s break down how Synology and QNAP stack up in detail for 2025.

Synology vs QNAP NAS – Hardware Comparison

In terms of hardware variety and specification, QNAP clearly maintains an advantage in 2025. QNAP offers a wider range of NAS models across every price tier, providing more options for users looking for features like 2.5GbE or 10GbE ports, Thunderbolt connectivity, PCIe expandability, and support for AI or GPU cards. Many QNAP systems at even mid-tier levels offer multi-core CPUs, 2.5GbE as a minimum, and M.2 NVMe slots for caching or storage pools. Synology, while offering a hardware range from ARM-based entry units to Xeon-powered enterprise models, typically emphasizes efficiency and stability over raw horsepower, often shipping systems with lower-core-count processors and 1GbE networking by default.

However, Synology’s hardware strategy is tightly coupled to its software-first philosophy. Devices are designed to maximize compatibility, power efficiency, and seamless operation with DSM. Some newer 2025 Synology models do offer improvements — such as M.2 NVMe storage pools and optional 10GbE upgrades — but their pace remains slower compared to QNAP’s frequent hardware refresh cycles. For users whose priority is high performance, customization, or bleeding-edge hardware, QNAP offers far more compelling options. For those seeking low-power, quiet, turnkey systems, Synology still provides highly reliable appliances.

Synology vs QNAP NAS – Storage Services and Scalability 

Storage capabilities represent a growing area of divergence. Synology’s storage ecosystem emphasizes stability and data integrity through Btrfs file systems, SHR (Synology Hybrid RAID), fast RAID rebuilds, and snapshot technology. However, Synology has dramatically tightened its drive compatibility rules from 2025 onwards, particularly in the Plus series and higher, limiting users to certified Synology drives for initialization. This hardline approach restricts flexibility, as users cannot freely install third-party HDDs or SSDs. Meanwhile, users still benefit from technologies like SHR, making mixed-drive RAID arrays easier to manage, though concerns remain about SHR’s future viability under Synology’s evolving drive policies.

	SERVICE	SYNOLOGY	QNAP	Notes
File Services	SMB, AFP, NFS			Cross-platform sharing
	WebDAV			Remote access
	FTP/FTPS			Standard protocols
	Rsync/Remote Sync			Sync across systems
RAID & Storage	Basic, JBOD, RAID 0/1/5/6/10			Core RAID support
	SHR (Hybrid RAID)			Synology-exclusive
	Qtier Auto-Tiering			QNAP-exclusive SSD/HDD tiering
	ZFS Support	(DSM 7.2+ select models)	(QuTS hero)	Synology uses Btrfs more widely
	Storage Pools			Pool-based management
	Thin Provisioning			On supported file systems
	Storage Snapshots	(Btrfs-based)	(ZFS/ext4-based)	Both support snapshot schedules
	Inline Deduplication	(Btrfs)	(ZFS)	Both support dedup, method differs
	SSD Cache (Read/Write)			Model-dependent
	Encryption (AES-256)			Volume/folder-level encryption
Backup & Sync	Hyper Backup / HBS3	(Hyper Backup)	(Hybrid Backup Sync 3)	Functionally equivalent
	Active Backup for Business			Enterprise-grade backup (free)
	Snapshot Replication			Data versioning support
	Cloud Sync			Multi-cloud sync integration

QNAP’s storage flexibility is far greater. Users can utilize almost any NAS-rated or server-class drive from vendors like Seagate, Toshiba, and WD, without vendor lock-in. Beyond standard RAID levels, QNAP offers Qtier for intelligent auto-tiering between SSDs and HDDs and supports ZFS through its QuTS hero operating system. ZFS integration introduces enterprise-grade features such as inline deduplication, compression, triple-parity RAID options, and even faster rebuilds. Expansion is another strong suit for QNAP, with broad support for external expansion enclosures over USB and PCIe, while Synology supports far fewer expansion units. In short, QNAP offers a more powerful, flexible storage environment but demands more technical knowledge to manage effectively.

Synology DSM vs QNAP QTS/QuTS  – Software Compared

Synology’s DSM (DiskStation Manager) remains the benchmark for NAS operating systems in terms of polish, consistency, and ease of use. Its streamlined UI, consistent app design, and stable system management tools make it highly user-friendly. DSM’s integration with Synology Drive, Hyper Backup, Active Backup for Business, and its Office suite provide turnkey productivity and backup solutions. However, Synology is moving increasingly toward a closed ecosystem, prioritizing first-party apps and services over broader third-party integration. Applications like Surveillance Station remain best-in-class, but recent trends — such as discontinuing Video Station — indicate Synology’s increasing control over its ecosystem.

QNAP’s QTS and QuTS hero systems offer greater flexibility and third-party support at the cost of consistency. Users can deploy a much wider range of apps, including those for AI recognition, media streaming, and backup tasks, often with deeper customization options. QNAP’s app ecosystem embraces both QNAP-native and third-party applications, with tools like HybridMount and Hybrid Backup Sync offering robust cloud and backup integrations.

However, design inconsistencies and a more complex setup process make QNAP platforms better suited to technically proficient users. QNAP systems offer more functionality out of the box but can feel less cohesive than Synology’s more curated environment.

Synology vs QNAP NAS – Security 

Synology continues to lead in NAS security in 2025. The company’s multi-layered approach — including an in-house Security Response Team, bug bounty programs, pen-testing partnerships, and rapid patching policies — maintains its reputation as one of the most secure NAS ecosystems. Security Advisor, SSL certificate management, encrypted folders, and proactive system audits are standard across DSM systems. Remote access via QuickConnect is tightly controlled to minimize exposure. This emphasis on hardening and responding quickly to vulnerabilities makes Synology a strong choice for users prioritizing security with minimal manual intervention.

	Service	Synology	QNAP	Notes
Security & Access	2FA (Two-Factor Authentication)			User-level protection
	VPN Server (OpenVPN, L2TP, PPTP)			Standard features
	Firewall + IP Blocking			Security policy management
	SSL Certificate Management			Let’s Encrypt, custom certs
	Security Advisor			Built-in vulnerability scanner

QNAP has made substantial strides in recent years to bolster its security posture, responding to earlier criticisms following ransomware incidents. The introduction of its own PSIRT team, participation in Pwn2Own, and improvements to myQNAPcloud services represent real progress. However, QNAP’s security tools, like Security Counselor, often need to be manually installed and configured. While they now offer multi-factor authentication and SSL options, the user experience around setting up and maintaining a secure environment still lags slightly behind Synology. Power users comfortable with managing network-level protections can achieve strong security on QNAP, but casual users may find Synology’s default setup safer out of the box.

Synology vs QNAP NAS – Price Point and Value 

QNAP consistently offers better raw hardware value for the price across its product range. A mid-tier QNAP NAS typically features higher-core CPUs, 2.5GbE or 10GbE networking, and expandability features like PCIe slots and multiple M.2 NVMe slots — features that, with Synology, are only available at much higher price points.

Additionally, QNAP’s lack of strict HDD compatibility listing (as currently the case for the Synology 2025 series, at the time of writing) and broader compatibility with storage and memory components can significantly reduce the total cost of ownership for DIY-minded users. Synology’s pricing, while generally higher, reflects its software development investment and the overall polish of its systems.

Buyers are paying for a more turnkey experience, better documentation, and consistent performance across the board. Moreover, Synology’s inclusion of powerful free tools like Active Backup for Business and Synology Drive adds enterprise-grade features without additional licensing costs, which in some cases offsets the hardware premium. Nonetheless, for users whose priority is maximum hardware performance and component freedom, QNAP usually offers a stronger return on investment.

Synology vs QNAP NAS – Conclusion and Verdict 

Choosing between Synology and QNAP in 2025 depends largely on user priorities. Synology remains the best choice for users seeking a polished, consistent, stable, and secure NAS experience. Its streamlined DSM platform, reliable first-party apps, and strong support infrastructure make it ideal for small businesses, prosumers, and general users who want a “set it and forget it” solution. However, Synology’s movement toward hardware and software lock-in may be off-putting to users who value flexibility or those unwilling to buy only Synology-branded components. QNAP, by contrast, excels in offering more powerful hardware, greater configuration freedom, and broader third-party app support. Users who want to customize, expand, virtualize, and maximize their system’s capabilities — and who are comfortable managing more complex setups — will find QNAP to be the more empowering platform. While its software consistency and security history lag slightly behind Synology, the gap has narrowed considerably. Ultimately, Synology is the stronger pick for users valuing simplicity and long-term stability, while QNAP offers more opportunities for those willing to trade simplicity for flexibility and raw performance.

NAS Solutions	NAS Solutions
+ Better Software (In almost every respect!) + Much Better Global Support Presence + More business desirable + Larger Range of solutions – Compatibility restrictions on HDD and Upgrades More and more – Underwhelming hardware (comparatively)	+ Better Hardware for Price + Wider Variety of Solutions and Hardware Profiles + Supports ZFS and/or EXT4 (with ZFS platform now available on latest Intel Celeron Systems) + Wide accessory range and compatibility – Software can often feel inconsistent – Hit by Security Issues if the past
Check Amazon By Clicking Below:	Check Amazon By Clicking Below:

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TerraMaster F6-424 Max NAS Review – LET’S GET SERIOUS?

Update – The Terramaster F6-424 Max NAS is NOW Available HERE on Amazon for $999

As TerraMaster continues to push the boundaries of affordable yet high-performance NAS devices, the F6-424 Max stands out as a flagship model designed to cater to the needs of power users, small businesses, and home lab enthusiasts. Released in September 2024 at a price point of $999.99, the F6-424 Max builds upon TerraMaster’s reputation for offering hardware that rivals premium competitors like Synology and QNAP but at a more accessible price. At the heart of this NAS is an Intel Core i5-1235U, a 10-core, 12-thread CPU that promises to handle everything from virtualization to media transcoding with ease. Coupled with dual M.2 NVMe slots, two 10GbE network ports, and support for up to 64GB of DDR5 memory, the F6-424 Max is aimed at users who require not just storage but also serious compute power.

Before diving into the detailed review of the F6-424 Max, it’s essential to understand how this model compares to its siblings, the smaller capacity F6-424, F4-424 and the F4-424 Pro. Each of these NAS units targets different segments of the market, from home users and enthusiasts to businesses requiring more power. Let’s take a closer look at the key differences between the F6-424, F6-424 Pro, and F6-424 Max.

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TerraMaster F6-424 Max NAS Review – Quick Conclusion

The TerraMaster F6-424 Max is a robust 6-bay NAS system that offers a powerful mix of features and flexibility for a wide range of tasks. Powered by the Intel i5-1235U CPU with 10 cores and 12 threads, the F6-424 Max excels at resource-intensive applications such as Plex media streaming, 4K hardware transcoding, and virtual machine hosting. Its dual M.2 NVMe slots running at PCIe Gen 4 speeds significantly improve storage performance, especially when used for caching, while the two 10GbE ports offer high-speed networking environments, allowing for 20Gbps throughput via link aggregation.

In terms of software, TOS 6 brings notable improvements, although it still lags behind the more polished ecosystems of Synology DSM and QNAP QTS. That said, TerraMaster’s continuous software evolution with each new version of TOS ensures that users have access to more robust tools and security features. For its price point of $999, the F6-424 Max is a compelling option for those seeking high-performance NAS solutions with scalability in mind. While the Pro model offers competitive performance, the Max takes it a step further with advanced networking, making it ideal for environments where speed is a priority.

Where to Buy? Terramaster F6-424 Max ($899 Amazon) – HERETerramaster F6-424 Max ($799 Aliexpress) – HERE

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TerraMaster F6-424 Max NAS Review – Hardware TL;DR

The F6-424 Max is equipped with some of the most powerful hardware seen in a domestic 6-bay NAS from TerraMaster. Here’s a detailed breakdown of the key hardware components:

Component	Specification
Processor	Intel i5-1235U (10 cores, 12 threads, 1.3GHz base, 4.4GHz boost)
Memory	8GB DDR5 (expandable up to 64GB)
Drive Bays	6x 3.5”/2.5” SATA (hot-swappable, up to 144TB total)
M.2 NVMe Slots	2x PCIe Gen 4 x4 (for caching or additional storage)
Networking	2x 10GbE RJ45 (supports link aggregation)
USB Ports	2x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C
HDMI	1x HDMI 2.0 (4K at 60Hz)
Cooling	1x 120mm fan (smart cooling system with multiple speeds)
Power Consumption	35W (idle), 70W (under full load)
Chassis Dimensions	222 x 179 x 154 mm
Weight	3.6 kg

The Intel i5-1235U is the real powerhouse of the F6-424 Max, combining two performance cores with eight efficiency cores for excellent multi-threaded performance. Whether you’re running virtual machines, AI workloads, or 4K Plex streams, this processor handles it all with ease. The 8GB of DDR5 memory is a solid starting point, but the system can support up to 64GB for users with more demanding needs.

Another key hardware feature is the dual 10GbE network ports, which offer more than just fast networking—they enable link aggregation to provide up to 20Gbps of network throughput. This makes the F6-424 Max perfect for video editing teams, large backups, or any environment requiring high-speed network transfers.

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TerraMaster F6-424 Max NAS Review – Chassis Design

The F6-424 Max arrives in a sleek, modern chassis that is not only visually appealing but also highly functional. The design has evolved significantly from TerraMaster’s older NAS models, taking cues from premium brands like Synology and QNAP. The brushed matte black plastic gives it a professional look while the ventilation design has been carefully optimized to improve airflow.

One of the standout features of the chassis is the dual 80mm fans at the rear of the unit. This fan works in tandem with the ventilated side panels, which are adorned with the TerraMaster logo, to ensure that the system remains cool even under heavy loads. The fans operate quietly, thanks to its smart cooling system, which adjusts fan speeds based on the internal temperature of the NAS.

The drive bays are hot-swappable and feature tool-less installation, making it incredibly easy to add or replace drives. The drive trays are constructed from durable plastic, and while they may feel a bit less premium compared to metal trays, they securely hold both 3.5” and 2.5” SATA drives. The trays slide effortlessly into the SATA connectors, and an intuitive push-to-lock mechanism prevents accidental ejection during operation.

On the front of the NAS, the LED indicators for system status, drive health, and network activity are discreet but easy to read. However, one minor complaint is the absence of a front-facing USB port, which could have made external drive backups or peripheral connections more convenient.

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TerraMaster F6-424 Max NAS Review – Ports and Connections

The F6-424 Max comes packed with a variety of ports that make it a versatile system for both high-speed networking and peripheral connections. The most significant feature is the dual 10GbE ports, which allow for link aggregation, effectively doubling your network bandwidth to 20Gbps when connected to a compatible switch. This level of networking is particularly useful for users handling large data transfers, 4K video editing, or multiple virtual machines.

In addition to the 10GbE ports, the NAS includes three USB 3.2 Gen 2 ports, two of which are Type-A and one Type-C. These ports provide data transfer speeds of up to 10Gbps, making them perfect for connecting external storage devices or peripherals like printers or USB drives. One of the notable improvements in this model is the inclusion of the USB Type-C port, which adds an extra layer of versatility for modern devices.

The HDMI 2.0 port supports 4K video output at 60Hz, which is ideal for users who wish to use the NAS for multimedia purposes or need a direct console for diagnostics and maintenance. However, it’s important to note that TerraMaster still hasn’t implemented a local GUI platform like QNAP’s HD Station or Asustor Portal, so the HDMI port is mostly useful for users running third-party operating systems like UnRAID or TrueNAS.

Overall, the port layout of the F6-424 Max is well-suited for high-performance environments but lacks some of the extra features—such as PCIe expansion or additional USB ports—that would make it even more versatile for advanced users.

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TerraMaster F6-424 Max NAS Review – Internal Hardware and PCIe Lanes

Opening up the F6-424 Max reveals a well-organized internal layout with some serious hardware under the hood. One of the most impressive aspects of the design is the integration of PCIe Gen 4 lanes, which significantly boosts the performance potential of the system. The Intel i5-1235U processor comes equipped with 20 PCIe lanes, and TerraMaster has used these lanes effectively to ensure that the NAS delivers exceptional I/O performance.

The two M.2 NVMe slots are directly connected via PCIe Gen 4 x4, which means that each slot can support full Gen 4 speeds of up to 8GB/s per drive. This is a massive improvement over the previous Gen 3 models, which were limited to 4GB/s. These NVMe slots can be used for caching, allowing users to speed up read/write operations when using slower mechanical drives in the main six bays, or they can be used as standalone storage pools for data-intensive tasks.

However, TerraMaster could have taken the hardware to the next level by offering a PCIe expansion slot. Many competitors in this price range, such as QNAP and Asustor, include a PCIe slot for adding additional network cards, SSDs, or Thunderbolt expansion cards. While the F6-424 Max is already a strong performer, the lack of expansion options could be a limiting factor for users who require more versatility from their NAS.

In terms of power efficiency, the F6-424 Max is highly optimized for its hardware class. Under full load, it draws around 70W, which is impressive considering the performance it delivers. The passive cooling on the Intel i5 CPU, combined with the large rear fan, ensures that the system remains cool without excessive noise or power consumption.

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TerraMaster F6-424 Max NAS Review – TOS Software

Review of the TOS 6 software (in Beta) HERE

With the release of TOS 6, TerraMaster has made great strides in enhancing the functionality and usability of its NAS systems. TOS 6 offers improved snapshot capabilities, better backup management, and enhanced support for cloud synchronization services like Google Drive, Dropbox, and Amazon S3. This means users can seamlessly synchronize their local NAS data with cloud storage, providing a layer of protection against data loss.

Another notable feature of TOS 6 is TRAID, TerraMaster’s flexible RAID configuration system, which allows users to combine disks of different sizes while still benefiting from redundancy. This is comparable to Synology’s Hybrid RAID (SHR), making it easier to expand storage in the future without being tied to identical drives. Additionally, TOS 6 supports AES 256-bit encryption, ensuring that sensitive data is protected both in transit and at rest.

However, while TOS 6 has seen significant improvements, it still lacks some of the advanced features found in Synology DSM or QNAP QTS. For example, TerraMaster’s photo management app (Terra Photos) is still in its beta phase and lacks the advanced AI-driven organization features of Synology Moments or QNAP QuMagie. Additionally, while Plex Media Server runs smoothly on the F6-424 Max, TerraMaster’s native multimedia tools are not as polished, making it less appealing for users who rely heavily on NAS-based multimedia management.

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TerraMaster F6-424 Max NAS Review – Conclusion and Verdict

The TerraMaster F6-424 Max is a standout NAS system in TerraMaster’s lineup, offering impressive hardware specifications and solid performance at a price point of $999.99. For users who need high-speed data transfers, intensive compute power, and flexibility in storage configurations, the F6-424 Max is an excellent option. The combination of the Intel i5-1235U CPU, dual 10GbE ports, and PCIe Gen 4 NVMe support ensures that the NAS can handle even the most demanding tasks, whether it’s virtualization, media transcoding, or large-scale backups.

That said, when compared to the F4-424 Max, which is priced at $799.99, the Max model offers significantly more networking power and potential for speed. However, the Pro model still provides fantastic performance for most home and small office users, making it a more budget-friendly alternative for those who don’t require 10GbE or advanced NVMe functionality.

In terms of software, Synology DSM and QNAP QTS are still more evolved, offering richer multimedia experiences and better integration for business applications. However, TOS 6 continues to improve with every iteration, closing the gap between TerraMaster and these larger players. With new features like TRAID, cloud sync, and improved snapshot management, TOS is becoming more user-friendly and robust. For users prioritizing performance, flexibility, and future-proofing, the F6-424 Max is a strong contender and offers excellent value for money. While there are areas where TerraMaster could improve, such as the lack of PCIe expansion and front-facing USB ports, the F6-424 Max delivers on its promise of high performance and scalable storage solutions.

PROS	CONS
Powerful Hardware: Intel i5-1235U with 10 cores and 12 threads for resource-heavy tasks. Dual 10GbE Ports: High-speed networking capabilities with link aggregation for up to 20Gbps, ideal for large file transfers. PCIe Gen 4 NVMe Support: Two M.2 NVMe slots offering exceptional performance for caching or additional high-speed storage. Efficient Cooling: The large 120mm fan ensures quiet and effective cooling, making it suitable for home and office environments. Improved TOS 6 Software: Enhancements in GUI, backup tools, and overall security bring TOS closer to its competitors.	Higher Price Tag: At just under $1K, it’s more expensive than TerraMaster’s other models, which may deter budget-conscious buyers. No PCIe Expansion: Lack of a PCIe slot limits potential for future upgrades, such as adding 10GbE cards or more M.2 drives. Presentation: The software has improved a lot, but still feels inconsistent in places compared with alternatives from brands such as Synology and QNAP.

Click the link below to take you to your local Amazon store and where to buy the terramaster F6-424 Max NAS.

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This description contains links to Amazon. These links will take you to some of the products mentioned in today's content. As an Amazon Associate, I earn from qualifying purchases. Visit the NASCompares Deal Finder to find the best place to buy this device in your region, based on Service, Support and Reputation - Just Search for your NAS Drive in the Box Below

Need Advice on Data Storage from an Expert?

Finally, for free advice about your setup, just leave a message in the comments below here at NASCompares.com and we will get back to you. Need Help? Where possible (and where appropriate) please provide as much information about your requirements, as then I can arrange the best answer and solution to your needs. Do not worry about your e-mail address being required, it will NOT be used in a mailing list and will NOT be used in any way other than to respond to your enquiry. [contact-form-7] TRY CHAT Terms and Conditions   Alternatively, why not ask me on the ASK NASCompares forum, by clicking the button below. This is a community hub that serves as a place that I can answer your question, chew the fat, share new release information and even get corrections posted. I will always get around to answering ALL queries, but as a one-man operation, I cannot promise speed! So by sharing your query in the ASK NASCompares section below, you can get a better range of solutions and suggestions, alongside my own.

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