Starting your AI Project

Although model development is the first of the three classic stages of an AI project, this phase is always preceded by a number of equally critical steps, including high-level planning, project scope setting and data preparation, as illustrated below.

Problem Statement

Project scope and high level ROI

Data Preparation

Classification, cleaning and structure

Model Development

Education and resource allocation

Model Training

Optimisation and scaling

Model Integration

Inferencing and deployment

Governance

Maintenance and compliance

It may not be immediately obvious, but ensuring your project scope is realistic and achievable has a large impact on what AI development hardware you'll ultimately require. Similarly, undertaking adequate data preparation, including classification, structuring and cleansing of data, ensures you know the precise size of datasets you'll be dealing with - thus providing an indication for GPU sizing, memory capacity and storage choices. Perhaps most crucially, data size also impacts the ability to scale your model as you iterate numerous options and evaluate outcomes. This data preparation stage can be up to as much as 60% of the entire time of your entire AI project, indicating how important it is to get it right. You can learn more about these crucial pre-development stages by reading our A-Z of AI White Paper.

AI Model Development

When it comes to using your prepared data in model development, chances are your project isn't unique, so there may well be pre-trained frameworks or optimised foundation models (FMs). These save time and effort when building an AI pipeline, and removing the need for much of the subsequent development work. A prime example is NVIDIA AI Enterprise (NVAIE), which features in excess of 30 distinct and interlinked pre-trained frameworks, optimised for NVIDIA GPUs, designed for end-to-end implementation of AI projects such as medical imaging, autonomous vehicles, avatars, drug discovery, robotics, generative AI and many more.

NVIDIA AI Enterprise Diagram

Understanding the frameworks or FMs available to you may also have a significant impact on your AI development platform choice, as it may dictate a minimum GPU memory size or level of performance required to complete this phase within a given timeframe. When it comes to model size, some FMs may already number into the several billion-parameter space, before you start fine-tuning them into your own tailored (often even larger) model. It is therefore key to understand the relative size of models, how they might scale and the GPU hardware that will be capable of handling this. Just for context, between the 1950s and to 2018, AI model size grew by seven orders of magnitude (from 000's to 30M) – yet from 2018 to 2022 alone, it has grown another four orders of magnitude (from 30M to 20B). Today 400B parameter models are not uncommon and ChatGPT-4 is rumoured to have 1.8T parameters.

AI model categories by typical use case, parameter count, dataset size and GPU requirements.
Type of AI Model Typical Use Case Parameters Dataset Size Typical GPU(s) Required
SLMs Limited scope chatbots / NLP / On-device applications 100M - 7B 1 - 8GB Consumer GPU(s) in laptop / desktop
LLMs Content creation / advanced chatbots / Real-time translation 7B - 20B 10 - 15GB Professional GPU(s) in workstation
Generative AI Advanced content creation / Personalised experiences / Drug Discovery 20B - 70B 20 - 40GB Multiple professional GPUs in workstation
Agentic AI Personalised interactions / Data-driven insights / Autonomous vehicles 70B - 200B 60 - 150GB Multiple professional GPUs in servers / cluster
Physical AI Robotics / Digital Twins 200B - xT 200 - 750GB Multiple GPU servers in cluster

It is worth clarifying that this table is for guidance only - absolute size (in GB) of any model is determined by number of parameters and the size of each parameter. Similarly, there will be small agentic AI models if their function is very focused and there will be very large LLMs if translation of many languages is the goal. It is also worth pointing out that the dataset size mentioned is the likely final size, so you need to consider capacity for numerous versions and many many iterations before reaching the final model. You can find more in-depth information about model development by reading our A-Z of AI White Paper.

AI Hardware

The following development options are compared and discussed in light of the model sizes above, offering recommendations and advice about the most suitable option for various scenarios. However, as previously stated thorough planning and scoping phases will lead to much more accurate provisional model sizes and better insight into hardware choice.

Traditional AI workstations are built around the industry-norm of an x86 CPU (either AMD or Intel) plus one or more NVIDIA RTX GPUs connected via the PCIe bus. The major benefit of this approach is that as a well-established system architecture over decades, such systems are extremely cost-effective and very easy to expand with more powerful processors, memory, storage and networking as your needs grow.

The downsides are that the CPU and GPU have separate pools of memory and that NVIDIA RTX GPUs are currently limited to 96GB of memory, so require multiple cards to run generative AI and reasoning AI models effectively. A new approach, using system-on-chip (SoC) provides a single CPU/GPU resource connected to a large combined memory pool.

Click the tabs below to explore these options, or of course you can contact our AI team for more information or advice.

NVIDIA DGX Spark

Nvidia DGX Spark

The DGX Spark is NVIDIA's latest appliance for developers looking for a desktop solution to develop and fine-tune generative AI and reasoning AI models. These are particularly challenging workloads as they have a large memory footprint, so are too large to run on many existing GPUs. The DGX Spark has been built from the ground-up to provide a single large memory pool. It achieves this by replacing the old discrete CPU and GPU paradigm with a SoC, combining CPU and GPU cores together in a single unit, making the unit very compact despite its considerable performance.

Architecture

Known as the GB10 Grace Blackwell Superchip, this SoC comprises a Blackwell GPU and 20 Arm CPU cores, sharing a unified 128GB of memory. The GPU element of the SoC is equipped with the latest 5th gen Tensor cores, which are optimised for performing FP4 calculations, the most commonly used precision level for generative AI and reasoning AI models, while the CPU element has ten Cortex X925 and ten Cortex A725 cores.

The SoC is supported by 4TB of NVMe SSD storage, alongside a 10GbE Ethernet port, ConnectX-7 SmartNIC and WiFi 7 for ingesting data. Just like a typical desktop PC, the DGX Spark has a HDMI port to connect a monitor, plus four USB Type C ports to connect peripherals. Furthermore, three DGX Spark units can also be clustered using a special LinkX cable, effectively creating a combined 384GB memory pool for running extremely larger models.

The DGX Spark runs DGX OS, which is a NVIDIA-customised version of Ubuntu Linux. This enables developers to unleash the full potential of their DGX Spark with a proven software platform built around a complete AI software stack including access to NVIDIA NIM microservices, Blueprints and AI Enterprise. This is of course the same software stack as other NVIDIA AI appliances, making it easy to transfer your newly-developed AI model onto more powerful MGX, HGX or DGX systems, whether they're in your own datacentre or in the cloud.

Comparative Performance

When choosing which AI development platform is right for your needs its important to not only look at its raw compute performance (typically measured in TOPS or FLOPS) but also the amount of memory, as this determines how large your AI model can be (typically measured in billions of parameters). This is quite a fundamental shift from a few years ago, when raw compute performance was the most important factor, and is due to the increasing use of LLMs when it comes to developing AI models. The table below compares the performance of the most popular systems.

Summary analysis of AI development systems by performance, memory, cooling and price profile.
System NVIDIA DGX Spark 2x NVIDIA DGX Spark 3x NVIDIA DGX Spark 3XS AI Laptop 3XS AI Workstations NVIDIA DGX Station GB300
Analysis The DGX Spark has a comparatively low FP4 performance of 1,000 TOPS, but has a very large 128GB memory (or 384GB if you cluster three Sparks).

This makes it an attractive choice for cost-effectively developing extremely large AI models.
3XS AI Laptops have a comparatively low FP4 performance of 1,824 TOPS and only 24GB memory. 3XS AI Workstations give you the flexibility to match the spec to your project requirements, with watercooled configurations offering up to seven GPUs for incredible performance and memory capacity.

Depending which GPUs you choose, you can expect superior FP4 performance to the DGX Spark and Station. However, you need to mindful of memory capacity, especially with GeForce RTX GPUs. These were incredibly popular a few years ago, but their limited memory is now becoming a real issue.
The DGX Station GB300 has an outstanding FP4 performance of 20,000 TOPS and huge memory of 748GB.

Combined with the fastest networking, this makes it ideal for the largest parameter AI models.
GPU(s) 1x NVIDIA GB10 2x NVIDIA GB10 3x NVIDIA GB10 1x NVIDIA GeForce RTX 5090 2x NVIDIA GeForce RTX 5090 7x NVIDIA GeForce RTX 5090 2x NVIDIA RTX PRO 6000 Blackwell 7x NVIDIA RTX PRO 6000 Blackwell 1x NVIDIA GB300
Cooling Air Air Air Air Air Water Air Water Air
AI performance (FP4 TOPS)* 1,000 2,000 3,000 3,648 6,704 23,464 8,000 23,457 20,000
GPU memory* 128GB 256GB 384GB 32GB 64GB 224GB 192GB 672GB 748GB
Billions of AI model parameters (FP4)* 200 400 600 38 102 357 307 1,071 1,200
Typical Price £4,000 £8,400 £12,600 £3,000 £14,000 £45,000 £28,000 £100,000 £120,000

* combined figure for all GPUs

Comparative TCO

Most AI development systems have much higher power consumption than traditional workstations or office PCs so it's also important to think about TCO (Total Cost of Ownership). The table below compares their cost over time, with the TCO calculated after one year and then after three years.

Comparative total cost of ownership for AI development systems.
System NVIDIA DGX Spark 2x NVIDIA DGX Spark 3x NVIDIA DGX Spark 3XS AI Laptop 3XS AI Workstations NVIDIA DGX Station GB300
GPU(s) 1x NVIDIA GB10 2x NVIDIA GB10 3x NVIDIA GB10 1x NVIDIA GeForce RTX 5090 2x NVIDIA GeForce RTX 5090 7x NVIDIA GeForce RTX 5090 2x NVIDIA RTX PRO 6000 Blackwell 7x NVIDIA RTX PRO 6000 Blackwell 1x NVIDIA GB300
System Price £4,000 £8,400 £12,600 £3,000 £14,000 £45,000 £28,000 £100,000 £120,000
Maximum power consumption 240W 480W 720W 330W 2,000W 6,000W 1,500W 6,000W 1,600W
TCO after 1 year* £4,374 £9,149 £13,723 £3,515 £17,120 £54,360 £30,340 £109,360 £122,496
TCO after 3 years* £5,123 £10,646 £15,970 £4,544 £23,360 £73,080 £35,020 £128,080 £127,488

* TCO includes system price plus estimated power consumption cost (typified as Mon – Fri at 80% system utilisation). Unit cost of electricity = £0.25 per kWh, as of June 2026.

Which is the best AI workstation?

Thanks to its innovative SoC architecture, the DGX Spark is the only reasonably-priced system that can develop AI models with a large number of parameters, such as generative AI and reasoning AI models. The DGX Spark is not only cost-effective up-front, but has a very low TCO thanks to its frugal power consumption. Being a desktop device, the DGX Spark is also a practical choice for organisations that for policy reasons are unable to upload their data into a cloud service.

3XS AI Workstations are a supremely capable AI development solution. They are available in a wide variety of configurations from just one GPU, to as many as seven GPUs, enabling you to match the spec to your project and budget requirements. This is the best solution if you need to gradually scale, just bear in mind that this comes at the cost of comparatively high TCO, as using multiple GPUs is less power efficient than a single all-powerful SoC.

Like the DGX Spark, the DGX Station GB300 also has an innovative SoC architecture, enabling it to develop AI models at enormous scale and great speed. The DGX Station is not only the best AI workstation for single-users, but also small teams, with up to seven users being able to share access simultaneously.

Finally, a 3XS AI Development Laptop is the only solution that enables you to develop AI models from anywhere - albeit with some quite severe memory limitations. It's therefore advisable to pair a laptop alongside a desktop device or cloud service, so that work needn't stop when you are on the move.

Proof of Concept

Any of these four solutions can be trialed free-of-charge in our proof-of-concept hosted environment. Your trial will involve secure access where you can use a sample of your own data for most realistic insights, and you'll be guided by our expert data scientists to ensure you get the most from your PoC.

To arrange your PoC, contact our AI team.

AI Development in the Cloud

Although this guide has been concerned with AI development hardware, we also supply all of these GPU-accelerated systems as virtual systems on our Scan Cloud platform.

Simple, Flexible Pricing with No Hidden Fees

No long-term commitments, no extra charges for storage or networking—experience the full benefits of the cloud without the drawbacks.

Reference Architecture for Unrivaled Performance

Harness the power of the latest GPUs for desktops or high-performance GPU clusters, from single GPUs to 8-way systems.

Networking and Storage Built for Performance

All GPU instances include NVMe storage and uncontended network ports, ensuring top-tier performance and data privacy.

Build It Your Way

Custom builds are SCAN's specialty—every aspect of our Infrastructure-as-a-Service (IaaS) solutions is fully customizable, with UK-based solutions ensuring data sovereignty.

Browse the available Scan Cloud options on or contact our Cloud team.

Ready to buy?

Click the links below to browse the range of AI development systems. If you still have questions on how to select the perfect system, do not hesitate to contact one of our friendly advisors on 01204 474210 or at [email protected].

Ready to buy AI development systems

Apply for a Free PoC

AI workstations can be trialed free-of-charge in our proof-of-concept hosted environment. Your trial will involve secure access where you can use a sample of your own data for realistic insights, and you will be guided by our expert data scientists to ensure you get the most from your PoC.

APPLY FOR A POC

Still not convinced?

Scan is an authorised NVIDIA Elite Partner and has been helping customers in multiple sectors including higher education, healthcare, pharmaceutical, finance, and robotics deploy AI projects since 2016. Follow the link below to discover how Scan has helped customers like you achieve success.

READ AI CASE STUDIES

Frequently Asked Questions

Answers to common questions about AI workstations, including performance, budget, specifications, and where to buy in the UK.

An AI workstation is a desktop or laptop computer that’s hardware and software has been optimised for developing AI models. Typically, an AI workstation has a single CPU plus one or more NVIDIA GPUs, with a large amount of system and GPU memory, in order to load AI models with large parameters. Most AI workstations run a Linux-derived operating system, although AI development is also possible on Windows.

The best AI workstation is the NVIDIA DGX Station GB300, available to buy from Scan, as this combines the highest performance (20 petaFLOPS) plus the largest memory (748GB), enabling it to process and load the largest AI models.

If your budget cannot stretch to the DGX Station GB300 then other AI workstation options are available, including custom-built systems with NVIDIA GeForce RTX and RTX PRO GPUs plus the DGX Spark.

Professional AI workstations start at around £3,000, scaling all the way up to around £120,000. This huge price span allows you to choose a system appropriate for your budget, with more expensive systems including more powerful GPUs, enabling you to develop AI models faster, and process models with more parameters than cheaper systems.

It’s the most important hardware specifications for AI model development are GPU performance (measured in FLOPS) and GPU and system memory (measured in TB). Don’t neglect the latter, as the amount of memory will restrict the size of AI models you can develop. This is why, as of 2026, many consumer-grade graphics cards are no longer suitable for AI workstations.

That said, like any professional workstation, it’s important to choose a balanced specification, as the CPU is crucial for data preparation, and the SSD is mandatory for keeping the GPU(s) fed with data for maximum efficiency.

Scan 3XS Systems has been hand crafting PCs, workstations and servers for more than 30 years. We pioneered the AI dev box back in 2016, so we have a huge amount of experience in building highly reliable deep learning AI workstations that deliver the most performance for your budget.

Scan 3XS Systems has been hand crafting PCs, workstations and servers for more than 30 years. We pioneered the AI dev box back in 2016, so we have a huge amount of experience in building highly reliable deep learning AI workstations that deliver the most performance for your budget. Scan is also an authorised NVIDIA Elite Partner.

This includes both custom-built AI workstations, plus the range of NVIDIA AI systems, including the DGX Spark, DGX Station and datacentre DGX servers.

Scan 3XS Systems has been hand crafting PCs, workstations and servers for more than 30 years. We pioneered the AI dev box back in 2016, so we have a huge amount of experience in building highly reliable deep learning AI workstations that deliver the most performance for your budget. Scan is also an authorised NVIDIA Elite Partner.

This includes both custom-built AI workstations, plus the range of NVIDIA AI systems, including the DGX Spark, DGX Station and datacentre DGX servers.