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Best Mini Workstation: Expansion and Memory

Compare application support, memory capacity, card expansion and local prices.

At a glanceWorkstation class

What decides this

Start with your application's CPU, GPU, driver and memory requirements. Replaceable RAM and PCIe expansion can extend a machine's useful life; a larger shared-memory pool may suit some local-AI workloads, subject to runtime support. Compare the installed configuration and documented expansion limits. A workstation label does not establish certification or measured performance in your application.

Which models should you consider?

Compare these local configurations by price, connections and upgrade options. Choose the features you need; their order does not establish a performance winner.

  • MINISFORUM MS-01

    Intel Core i5-12600H · 32 GB · 1 TB

    £935.00 ·

    For workloads that need workstation expansion or memory. It has the lowest current UK price among these recommendations. It includes 32 GB of RAM versus 16 GB in Lenovo ThinkStation P3 Tiny, giving more capacity for memory-heavy work. Its installed SSD is 1000 GB, compared with 512 GB in Lenovo ThinkStation P3 Tiny. Its 4 wired network ports offer more physical connections than the 1 on Lenovo ThinkStation P3 Tiny. Its 3 M.2 slots provide more drive locations than the 2 on Lenovo ThinkStation P3 Tiny; check which are already occupied. Choose it for replaceable RAM: 2 slots and a documented limit of 96 GB, subject to compatible modules. The recorded built-in network connections are 2x 10GbE SFP+, 2x 2.5GbE; useful for a suitably equipped NAS or host network.

    Trade-off: Check your application’s GPU certification, drivers and memory requirements. A compact chassis can limit sustained power.

  • Lenovo ThinkStation P3 Tiny

    Intel Core i5-14500 · 16 GB · 512 GB

    £981.37 ·

    For workloads that need workstation expansion or memory. Compare its price with MINISFORUM MS-01; pay extra only for features you will use. Choose it for replaceable RAM: 2 slots and a documented limit of 96 GB, subject to compatible modules.

    Trade-off: There is one built-in wired network port (1GbE); separate physical links need additional hardware.

  • MINISFORUM MS-02 Ultra 235HX

    Intel Core Ultra 5 235HX · 32 GB · 1 TB

    £1,019.00 ·

    For workloads that need workstation expansion or memory. Compare its price with MINISFORUM MS-01; pay extra only for features you will use. It includes 32 GB of RAM versus 16 GB in Lenovo ThinkStation P3 Tiny, giving more capacity for memory-heavy work. Its installed SSD is 1000 GB, compared with 512 GB in Lenovo ThinkStation P3 Tiny. Its 2 wired network ports offer more physical connections than the 1 on Lenovo ThinkStation P3 Tiny. Choose it for replaceable RAM: 4 slots and a documented limit of 256 GB, subject to compatible modules. The recorded built-in network connections are 10GbE, 2.5GbE; useful for a suitably equipped NAS or host network.

    Trade-off: Check your application’s GPU certification, drivers and memory requirements. A compact chassis can limit sustained power.

Before you choose

What separates this from a fast desktop

Rendering, simulation, large builds and video work stress different parts of a workstation. Match the software's GPU and driver requirements, installed memory and sustained CPU needs. Check application-specific benchmarks and any required ISV certification for the exact model and GPU.

Memory headroom is usually the real ceiling

Check the peak memory working set of your application, including the operating system, and distinguish system RAM from GPU VRAM. Some software can process data in parts or spill to storage, with different performance implications. Replaceable memory can add headroom within the documented module and capacity limits; a larger fixed-memory configuration may also suit a known workload.

What to check before you buy

Check dimensions, power supply, internal card clearance and documented drive slots against your workspace and planned upgrades. Fast networking can help shared storage. Noise and sustained performance need measurements; physical size alone does not establish either.

The shortlist

21 mini PCs

WhyA PCIe card slot with 8 lanes. Expandable to 96 GB. 2x 10GbE SFP+, 2x 2.5GbE. 3 M.2 slots.

Product image: Lenovo ThinkStation P3 Tiny

Lenovo ThinkStation P3 Tiny

Intel Core i5-14500
CPU
16 GB DDR5
RAM
512 GB SSD
STORAGE
1GbE
NETWORK
£981.37

WhyA PCIe card slot with 8 lanes. Expandable to 96 GB.

Product image: MINISFORUM MS-02 Ultra 235HX

MINISFORUM MS-02 Ultra 235HX

Intel Core Ultra 5 235HX
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
10GbE
NETWORK
£1,019.00

WhyA PCIe x16 card slot; lane count not stated by MINISFORUM. Expandable to 256 GB. 10GbE, 2.5GbE.

WhyA PCIe card slot with 8 lanes. Expandable to 96 GB. 2x 10GbE SFP+, 2x 2.5GbE. 3 M.2 slots.

Product image: Lenovo ThinkCentre M90q Gen 5

Lenovo ThinkCentre M90q Gen 5

Intel Core i5-14500
CPU
32 GB DDR5
RAM
512 GB SSD
STORAGE
1GbE
NETWORK
£1,268.65

WhyA PCIe x8 card slot; lane count not stated by Lenovo. Expandable to 64 GB.

Product image: MINISFORUM MS-02 Ultra

MINISFORUM MS-02 Ultra

Intel Core Ultra 9 285HX
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
2x 25GbE SFP+
NETWORK
£1,499.00

WhyA PCIe x16 card slot; lane count not stated by MINISFORUM. Expandable to 256 GB. 2x 25GbE SFP+, 10GbE, 2.5GbE. 4 M.2 slots.

15 other configurations to consider

Product image: Lenovo ThinkStation P3 Ultra SFF Gen 2

Lenovo ThinkStation P3 Ultra SFF Gen 2

Above typical price
Intel Core Ultra 5 235
CPU
16 GB DDR5
RAM
512 GB SSD
STORAGE
1GbE
NETWORK
£1,617.76
Product image: Lenovo ThinkCentre M90q Gen 6

Lenovo ThinkCentre M90q Gen 6

Above typical price
Intel Core Ultra 5 235
CPU
16 GB DDR5
RAM
512 GB SSD
STORAGE
1GbE
NETWORK
£1,882.67
Product image: ASUS ROG NUC

ASUS ROG NUC

Intel Core Ultra 9 185H
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA GeForce RTX 4070 Laptop 8GB
GRAPHICS
£1,999.00
Product image: ASUS ROG NUC 15

ASUS ROG NUC 15

Intel Core Ultra 9 275HX
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA GeForce RTX 5070 Ti Laptop
GRAPHICS
£2,216.94
Product image: Lenovo ThinkStation P3 Ultra SFF Gen 2

Lenovo ThinkStation P3 Ultra SFF Gen 2

Intel Core Ultra 7 265
CPU
32 GB DDR5
RAM
512 GB SSD
STORAGE
NVIDIA RTX A400
GRAPHICS
£2,421.25
Product image: ASUS ROG NUC 15

ASUS ROG NUC 15

Intel Core Ultra 9 275HX
CPU
32 GB DDR5
RAM
2 TB SSD
STORAGE
NVIDIA GeForce RTX 5080 Laptop
GRAPHICS
£2,899.99
£2,999.99SAVE £100.00
Product image: ASUS ROG NUC 16

ASUS ROG NUC 16

Intel Core Ultra 7 270HX Plus
CPU
16 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA GeForce RTX 5060 Laptop
GRAPHICS
£2,948.19
Product image: Dell Pro Max Micro FCM2250

Dell Pro Max Micro FCM2250

Intel Core Ultra 7 265
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA RTX A1000
GRAPHICS
£3,005.41
Product image: GEEKOM A9 Mega

GEEKOM A9 Mega

AMD Ryzen AI Max+ 395
CPU
128 GB LPDDR5X
RAM
2 TB SSD
STORAGE
Dual 2.5GbE
NETWORK
£3,399.00
Product image: Lenovo ThinkStation P3 Tiny Gen 2

Lenovo ThinkStation P3 Tiny Gen 2

Intel Core Ultra 7 265
CPU
64 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA RTX A1000
GRAPHICS
£3,418.57
Product image: GMKtec EVO-X2

GMKtec EVO-X2

AMD Ryzen AI Max+ 395
CPU
128 GB LPDDR5X
RAM
2 TB SSD
STORAGE
2.5GbE
NETWORK
£3,483.32
£3,699.96SAVE £216.64
Product image: ASUS ROG NUC 16

ASUS ROG NUC 16

Intel Core Ultra 9 290HX Plus
CPU
32 GB DDR5
RAM
1 TB SSD
STORAGE
NVIDIA GeForce RTX 5070 Ti Laptop
GRAPHICS
£3,744.35
Product image: Lenovo ThinkCentre M90q Gen 5

Lenovo ThinkCentre M90q Gen 5

Above typical price
Intel Core i7-14700
CPU
32 GB DDR5
RAM
512 GB SSD
STORAGE
1GbE
NETWORK
£3,840.74
Product image: ASUS ROG NUC 16

ASUS ROG NUC 16

Intel Core Ultra 9 290HX Plus
CPU
64 GB DDR5
RAM
2 TB SSD
STORAGE
NVIDIA GeForce RTX 5080 Laptop
GRAPHICS
£6,905.37

Specifications to check before buying

For the models below, check the highlighted specification with the manufacturer or seller before deciding whether it suits your setup.

Check the amount of memory installed for these 2 configurations.

Check the number of memory slots for these 1 configurations.

Questions worth asking

Can a mini workstation replace a tower?

It depends on the configuration and application. Some compact workstations support internal professional graphics or PCIe cards; others rely on integrated graphics. Check physical card size, power, driver support and application requirements before replacing a tower.

Why does the expansion slot matter so much?

An internal PCIe slot provides a direct path for compatible network, capture or storage cards. Check physical size, electrical lanes, power and cooling. External adapters may be alternatives where the host interface and operating system support them.

Should I buy the barebone?

Compare the complete cost of compatible RAM, storage and any operating-system licence with the ready-to-use configuration. Check module type, slots, cooling kits and warranty terms. A barebones kit is not automatically cheaper or the right choice for every workload.

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.