OCI Bare Metal vs AWS Dedicated Hosts: Price and Performance

Most cloud compute is virtualised, and for most workloads that is fine. But a meaningful class of enterprise workloads wants the whole physical machine: databases licensed per core that cannot afford hypervisor ambiguity, latency sensitive systems that cannot tolerate noisy neighbours, applications with vendor support statements written for physical hardware, and regulated workloads where single tenancy is a control requirement rather than a preference. Both OCI and AWS will sell you dedicated hardware, but they conceive of it so differently that comparing them is really comparing two philosophies. OCI designed bare metal in from the first day, because its founding workload, Oracle Database, demanded it. AWS retrofitted dedication onto a virtualisation first platform. This article compares the two approaches on price, performance, and fit, as part of our wider independent comparison of OCI, AWS, Azure, and Google Cloud.

Two models of dedication

OCI bare metal is a standard compute shape. You provision a bare metal instance the same way you provision a virtual machine, through the same console, API, and Terraform provider, billed per OCPU hour at rates published on the public price list. There is no hypervisor on the box, you get the entire server, and OCI's off box network virtualisation means the cloud control plane lives in the network card rather than in software stealing your cycles. AWS offers two related products. Dedicated Instances run your VMs on hardware no other customer shares, while Dedicated Hosts give you a visible physical server whose sockets and cores you can map, which is what licence compliance usually requires. Both carry premiums over ordinary EC2, Dedicated Hosts bill per host rather than per instance, and the operational model asks you to think about host capacity, instance packing, and host recovery in a way ordinary EC2 never does.

Performance: what the architecture gives you

On raw performance the comparison favours OCI in a specific and explainable way. An OCI bare metal shape gives you every core, every gigabyte of memory bandwidth, and the full NVMe and network capability of the physical server, with no hypervisor tax at all, because there is no hypervisor. AWS Nitro has driven its virtualisation overhead admirably low, and for most workloads the difference is small. But for the workloads that buy dedicated hardware in the first place, the difference is rarely the point: consistency is. A bare metal box has no neighbours and no scheduler making placement decisions, so its performance variance is as close to zero as cloud gets. Storage follows the same logic. OCI dense IO bare metal shapes ship with local NVMe measured in millions of IOPS, and OCI block storage performance tiers can be changed online. The deeper dive into how this plays for databases specifically lives in OCI vs AWS for Oracle workloads.

Price: the premium versus the default

The pricing comparison is stark because the models differ. OCI prices bare metal per OCPU at the same family rates as flexible virtual shapes, so a bare metal standard shape with 128 cores costs almost exactly what 128 cores of virtual capacity costs. The dedication is free in the sense that it carries no surcharge. AWS Dedicated Hosts carry a premium over equivalent shared tenancy EC2 capacity, you pay for the whole host regardless of how fully you pack it, and effective cost rises further if your instance mix leaves cores stranded. Add the egress differential, 10 TB free monthly on OCI against AWS metered egress, and infrastructure heavy dedicated estates diverge in cost quickly. The usual caveats apply: AWS Savings Plans discount dedicated capacity meaningfully, and a real comparison should model negotiated rates on both sides over several years. When we run those models for clients, OCI's dedicated economics generally hold a clear advantage, and the result feeds directly into Universal Credits sizing, where a fixed fee planning project or a savings based optimization review keeps the commitment honest.

Licensing: the quiet decider

For many buyers the real reason for dedicated hardware is software licensing, and here the platforms diverge sharply. Per core licensed software wants visible, countable, stable physical cores. AWS Dedicated Hosts exist substantially to satisfy this, and they do, but Oracle's licensing arithmetic still counts AWS capacity unfavourably compared with OCI, where licensing terms for Oracle software are at their most favourable and BYOL programmes map cleanly onto OCPU counts. Windows Server, SQL Server, and various ISV licences each carry their own host based rules that can favour either platform depending on the estate. This is exactly the territory where an architecture decision is really a licensing decision wearing a hard hat, and where getting independent licensing advice before committing saves multiples of its cost. It is also why our engagements so often pair infrastructure planning with an independent licensing review.

Operational fit and the day two view

Dedicated hardware changes operations more on AWS than on OCI. An AWS Dedicated Host estate needs host lifecycle management: allocating hosts, packing instances efficiently, handling host retirement notices, and reconciling licence affinity rules that pin instances to physical machines for set periods. None of that is unmanageable, but it is real work that ordinary EC2 estates never see. On OCI, a bare metal instance is operationally just an instance, monitored, patched, and automated like everything else in the tenancy. The places OCI asks more of you are the thinner managed service catalogue around the compute, and the smaller pool of engineers with platform experience, gaps that are usually closed by pairing the estate with a specialist partner on a managed monthly retainer rather than by hiring. Our OCI compute practice covers shape selection, capacity planning, and the automation that keeps a bare metal estate boring.

A selection framework

Bringing it together

OCI bare metal and AWS Dedicated Hosts answer the same needs from opposite directions. AWS treats dedication as an exception to be priced accordingly, and it works well for organisations already deep in the AWS operational model who need a compliant home for licence bound or isolation hungry workloads. OCI treats the whole physical machine as a normal way to buy compute, prices it like ordinary capacity, and pairs it with the network and storage design those workloads want. For estates where dedicated hardware is a corner case, the AWS premium may be worth paying to stay on one platform. For estates where dedicated hardware is the centre of gravity, databases, licence bound middleware, latency critical systems, OCI's economics are hard to argue with. The deciding evidence is always the same: your workload, both rate cards, and a few weeks of honest benchmarking, which is precisely what an assessment delivers.