CASE STUDY
Glesys Scales Energy-Efficient Compute with Ampere® Altra® processors for High-Performance Hardware-as-a-Service
Glesys Scales Energy-Efficient Compute with Ampere® Altra® processors for High-Performance Hardware-as-a-Service
09 April 2025
09 April 2025
INTRODUCTION
How do you meet soaring demand for efficient compute while battling legacy CPU limitations and rising energy costs? Glesys, a HaaS provider, faced this exact challenge, needing to delay costly data center expansions and achieve sustainability. By integrating Ampere® Altra® CPUs, Glesys unlocked unprecedented performance-per-watt, thermal optimization, and carbon-negative operations. This case study reveals how their strategic shift delivered up to 2x traffic per krona for customers, pushing boundaries in efficiency and scalability1.
COMPANY DESCRIPTION
Glesys is a Nordic cloud and infrastructure provider offering colocation, backbone connectivity, and HaaS from its energy-efficient data centers. The company operates an internet exchange and a backbone network, delivering cost-effective services with strong local compliance and sustainability practices. Its infrastructure powers clients across Europe with near-zero latency and minimal carbon impact. Known for its pioneering work in heat recovery and carbon-negative operations, GleSYS helps European customers meet their infrastructure needs while supporting aggressive ESG targets.
Challenges
Facing rising demand and strict power and cooling budgets, GleSYS struggled with legacy CPUs that lacked efficiency, scalability, and performance. The provider needed denser compute and improved performance-per-watt to postpone data center expansions, reduce operating costs, and meet sustainability targets while supporting multitenant, cloud-native workloads and accommodating future growth demands.
Solution
GleSYS deployed Ampere Altra CPUs on Supermicro servers, increasing per server core density and performance per watt, enabling dense air cooled racks, heat recovery, and carbon tracking. The move unlocked cost-effective scalability, delayed data center expansion, and created new energy efficient offerings for multitenant and AI inference workloads while improving customer throughput and reducing operational expenses2.
Benefits
Ampere Altra CPUs delivered significant benefits: nearly 2x traffic per krona for customers, carbon-negative operations, and maximized performance-per-rack without costly upgrades. GleSYS achieved substantial cost savings by delaying data center expansions, improved thermal efficiency, and gained new revenue opportunities through flexible, energy-efficient services2.
“Ampere Altra CPUs let us offer compute that’s not only cost- and energy-efficient, but also a powerful differentiator in our customer conversations.”
— Claes Hohner,
Head of Sales, Glesys
“We achieve much greater efficiency with Ampere CPUs. The high concurrency achieved from the high core count gives us increased performance per USD for our e-commerce platform, with a lower CO2 footprint as an added bonus.”
— Robin Alm,
Head, IT Operations, Askås I&R AB
References
1. Feedback based on qualitative assessments provided by Glesys during technical evaluation discussions with Ampere. Information reflects Glesys’s own observations and conclusions regarding the limitations of legacy CPU architecture in the context of their HaaS business. Assessment confirmed by Glesys as of April 2025.
2. All metrics cited were provided directly by Glesys to Ampere and validated by Glesys as accurate and current as of April 2025.
About Ampere
Ampere is a semiconductor design company for a new era, leading the future of computing with an innovative approach to CPU design focused on high-performance, energy efficient AI compute. As a pioneer in the new frontier of energy efficient high-performance computing, Ampere is part of the Softbank Group of companies driving sustainable computing for AI, Cloud, and edge applications.
See our solutions for a variety of demanding workloads: amperecomputing.com/solutions
Visit our Developer Center: amperecomputing.com/developers
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