64GB max RAM · 4 bays · 2 x 10GbE
AINAS Score 45
No verified UK price
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Can the QNAP TVS-h674T run local AI?
Only lightly. Expect 32B class models comfortably, and 70B class models at 4-bit with little headroom (Estimated) on the QNAP TVS-h674T: Intel Core i5-12400 does the work with up to 64GB of memory, which is fine for experiments rather than a daily assistant.
Its PCIe x16 slot leaves room to add a GPU when you outgrow CPU inference.
Local LLM support is documented by the manufacturer.
What is the TVS-h674T like?
The TVS-h674T is the six-bay sibling of the TVS-h874T, with a Core i5-12400, 32GB of memory expandable to 64GB, and the same Thunderbolt 4 card fitted. We class it as AI Capable rather than AI Ready because QNAP's official GPU list caps it at a 4GB card and the power supply is 250W, so meaningful GPU inference is not realistic.
What it can do is run small to mid-sized models on the CPU through Ollama in Container Station, host Qsirch semantic search, and handle face and object recognition in QuMagie quickly thanks to the Intel graphics. It also supports Hailo-8 accelerator cards for vision tasks such as surveillance.
Buy it for a small studio or office that wants Thunderbolt editing storage and QNAP's mature app ecosystem, with AI as a supporting feature. If you want a NAS that runs a useful chat assistant on its own, look at systems with a modern AI processor or a full-size GPU slot instead.
Current UK offers
Amazon UK
TVS-h674T-i5-32G
£3,161
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In stock
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Key specifications
- PCIe
- PCIe Gen4 x16 + PCIe Gen4 x4 (Thunderbolt 4 card preinstalled); cards up to 185 mm
- Source: Manufacturer
- Docker
- Yes
- VM support
- Yes
- Released
- 2023
Can the TVS-h674T run local LLMs?
Each capability shows how it was confirmed: Verified by AINAS, Vendor confirmed, Community confirmed or Unverified.
| Capability | Supported | Evidence | Note |
|---|---|---|---|
| Local LLM | Limited | Vendor confirmed | QNAP Ollama guide applies (x86, 16GB+ for 7B); supported GPUs are 4GB or less so inference is CPU-bound. |
| Ollama | Yes | Vendor confirmed | Container Station Ollama tutorial for QTS/QuTS hero x86 NAS. |
| Open WebUI | Yes | Vendor confirmed | QNAP Open WebUI tutorial, QTS 5.2 / QuTS hero h5.2+. |
| RAG | Limited | Unverified | Qsirch RAG Search (beta) exists; not confirmed for this model. |
| AI search | Yes | Vendor confirmed | Qsirch AI Semantic Search: 64-bit x86, 5.0.1+, 8GB RAM. AI Mode needs a 16GB+ VRAM GPU, none on this model's list. |
| GPU expansion | Limited | Vendor confirmed | PCIe Gen4 x16 slot, 185 mm card limit; official list only GT 1030, Quadro P620/P1000, RTX A400 4GB. |
| Hardware acceleration | Yes | Vendor confirmed | UHD Graphics 730 transcoding; Hailo-8 M.2 (26 TOPS) on AI accelerator list. |
| AI photos | Yes | Vendor confirmed | QuMagie AI-driven smart photo and video albums. |
| AI video | Yes | Vendor confirmed | QVR Face listed under QTS. |
| Surveillance AI | Yes | Vendor confirmed | QVR Surveillance 2 free + 6 on registration; QVR Pro 8 free (QTS). |
How much RAM does the TVS-h674T support?
Plan on upgrading. 32GB is fitted as standard, while the TVS-h674T accepts 64GB of DDR4 SODIMM, which is the difference between models up to the 14B class, with 32B class models a tight fit and 32B class models comfortably, and 70B class models at 4-bit with little headroom (Estimated).
Our estimate for the biggest model that fits in 64GB is about 93B parameters at 4-bit, after setting aside 8GB for the system. Long context windows reduce that figure (Estimated).
Can you add a GPU to the TVS-h674T?
Yes, through a PCIe Gen4 x16 + PCIe Gen4 x4 (Thunderbolt 4 card preinstalled); cards up to 185 mm. That is the single biggest upgrade for local AI on the TVS-h674T: model layers move into fast graphics memory and replies speed up dramatically. Card size and power are the constraints (250W supply).
Is the TVS-h674T suitable for RAG?
As the storage half of a RAG setup it works well; as the model host it is limited. Small embedding models run fine on the TVS-h674T, while the answering model needs more compute than it has.
The manufacturer also provides AI search across your files (documented by the manufacturer), which covers simple document questions without setting up your own stack.
For network access it has 2 x 2.5GbE. Enough for light use; large imports will take a while.
Which TVS-h674T configurations are sold?
| Configuration | RAM | SSD | Notes |
|---|---|---|---|
| TVS-h674T-i5-32G | 32GB | None | Only configuration listed |
How is the TVS-h674T different from the TVS-h874T?
The closest QNAP model by AINAS Score. Only the specifications that differ are listed.
- Processor: Intel Core i5-12400 on the TVS-h674T, 12th Gen Intel Core i7 (12-core 8P+4E, 20 threads); i9 (16-core 8P+8E, 24 threads) on i9-64G on the TVS-h874T
- CPU cores: 6 on the TVS-h674T, 12 on the TVS-h874T
- Integrated graphics: Intel UHD Graphics 730 on the TVS-h674T, Intel UHD Graphics 770 on the TVS-h874T
- Drive bays: 6 on the TVS-h674T, 8 on the TVS-h874T
- Power supply: 250W on the TVS-h674T, 350W on the TVS-h874T
- AI class: AI Capable on the TVS-h674T, AI Ready on the TVS-h874T
- AINAS Score: 49 on the TVS-h674T, 58 on the TVS-h874T
Who should buy the TVS-h674T?
Best fit: people who want a private chat assistant or coding model at home without sending data to a cloud service. That is where the TVS-h674T scores highest (Local LLM 52/100), followed by RAG (52/100).
Less suited to teams moving large files over the network every day.
What are the alternatives to the TVS-h674T?
Other AI Capable systems closest in price.
TVS-h674T questions
Does Ollama work on the TVS-h674T?
Yes. Ollama support is documented by the manufacturer. See the capability table above for the source.
Can you install Open WebUI on the TVS-h674T?
Yes. Open WebUI support is documented by the manufacturer. See the capability table above for the source.
Can the TVS-h674T sort photos by faces and objects?
Yes. AI photos support is documented by the manufacturer. See the capability table above for the source.
Is the TVS-h674T good for AI camera recording?
Yes. Surveillance AI support is documented by the manufacturer. See the capability table above for the source.
Is there hardware acceleration for AI on the TVS-h674T?
Yes. Hardware acceleration support is documented by the manufacturer. See the capability table above for the source.
What networking does the TVS-h674T have?
It has 2 x 2.5GbE built in, and the PCIe Gen4 x16 + PCIe Gen4 x4 (Thunderbolt 4 card preinstalled); cards up to 185 mm can take a faster network card. The fastest port is 2 x 2.5GbE.
Where do these specifications come from?
Every field records its source. Specifications were last checked on . Spot an error? Send a correction with a manufacturer link.