How UK organisations evaluate total cost of ownership when choosing desktops

Acquisition costs include the desktop, required peripherals, operating system licences and any warranty or support package purchased upfront. Use supplier quotes based on the same specifications, quantities and service requirements. A lower purchase price does not necessarily mean a lower total cost over the planned lifecycle.

Check these at the quote stage:

• Warranty coverage: Check the duration, onsite support, response times and exclusions.
• Model availability: Ask how long the model and key components will remain available, and how specification changes will affect deployment and support.
• Purchasing terms: Compare delivery charges, volume discounts and payment terms. Public sector buyers should also check whether an appropriate procurement framework is available.

Explore Digital Devices’ IT procurement services to discuss desktop specifications, sourcing and purchasing requirements.

Deployment costs include preparing, configuring, delivering and testing each desktop. Estimate the technician time required and include any supplier setup fees, shipping charges and user handover time. Check what supplier fees cover so you do not count the same work twice.

Include in your model:

• Technician time per device for your current and proposed deployment methods.
• Supplier charges for configuration, device registration, delivery and asset tagging.
• Any additional software licences or subscriptions required.
• Time needed to install applications, test access and help users get started.

Energy costs depend on device power consumption, working hours, power settings and your electricity tariff. Compare shortlisted desktops using measured consumption under similar workloads, including idle and sleep periods.

Use this calculation:

Annual electricity cost = power consumption in watts ÷ 1,000 × annual operating hours × electricity price per kWh

For example, assume one desktop averages 100 watts and another averages 20 watts over 2,000 operating hours a year. At an illustrative tariff of £0.25 per kWh, the difference is £40 per desktop annually, or £160 over four years. Across 500 desktops, that would total £80,000.

These are example assumptions, rather than typical consumption figures. Replace them with measurements for your shortlisted devices and your organisation’s tariff. Include monitors and other peripherals consistently, and account for any consumption outside working hours.

Lower energy consumption can also support sustainability goals. Record the assumptions and measurements used so you can assess actual performance after deployment.

Space matters too. A compact desktop mounted behind a monitor can free up desk space, but this does not automatically reduce property costs. Consider mounting accessories, ventilation, maintenance access and the needs of each workspace when comparing form factors.

Support costs include the time and resources needed to keep desktops secure, reliable and available throughout their working life.

Include:

• Internal IT time: Estimate hours spent on troubleshooting, updates, repairs and device management. Use an hourly staff cost that includes relevant employer costs.
• External support: Include service contracts, call-out fees, replacement parts and charges outside warranty coverage.
• Management tools: Include endpoint management and security software, counting each licence only once.
• Replacement equipment: Account for spare devices, storage, shipping and the time needed to configure replacements.

Use service-desk records and repair history to estimate support demand. If those records are unavailable, document your assumptions and compare how different support levels affect the total.

Check warranty terms carefully. An onsite response commitment does not necessarily mean the desktop will be repaired within that time. Confirm service hours, location coverage, parts availability and any exclusions.

If you are considering external support, discuss the scope of Digital Devices’ managed IT services and include the quoted charges in your comparison.

Compare options that meet the same workload, security and user requirements. A tower, compact desktop and cloud desktop may suit different needs, so assess performance and usability alongside cost.

Include the cost of taking desktops out of service securely and responsibly. Retirement can involve collection, data sanitisation, transport, remarketing and recycling.

Ask prospective providers to itemise:

• Collection and logistics: Packing, transport and charges for collecting equipment from multiple locations.
• Data sanitisation: The method used, verification process and records provided for each device.
• Reuse or recycling: How equipment is assessed, processed and tracked through its final destination.
• Administration: Asset-register updates, ownership transfers and retirement documentation.

Request a written estimate of any resale or trade-in value. Returns depend on the device’s age, specification, condition and market demand, so avoid assuming a fixed percentage of its purchase price.

Calculate the net retirement cost as:

Net retirement cost = collection + sanitisation + processing fees − resale or trade-in proceeds

If your main TCO formula already subtracts residual value, enter retirement charges and resale proceeds separately so you deduct the proceeds only once.

Confirm the provider’s relevant certifications, downstream handling arrangements and documentation before agreeing to the service. Discuss your refresh and retirement requirements as part of a wider IT lifecycle management plan with Digital Devices.

A desktop that costs less to purchase can still create additional costs if it regularly delays work. Assess whether shortlisted devices can run the applications and workloads employees need.

Use this calculation to estimate the potential impact:

Annual productivity cost = hours lost per employee × affected employees × hourly employment cost

For example, an assumed 10 minutes of lost working time per day across 240 working days equals 40 hours per employee annually. Use your own working calendar and evidence from support records, user feedback or performance testing.

Treat this as an estimate of time affected, rather than a guaranteed financial saving. Employees may be able to continue other tasks during a delay, and time recovered does not automatically reduce payroll costs.

Keep employee productivity estimates separate from direct costs such as repairs and IT support. Present both figures clearly so decision-makers can see the assumptions behind the comparison.

Also check operating system and application support throughout the planned lifecycle. Include any additional support subscriptions, compatibility testing or migration work needed to keep devices supported.