# Ignition 8.3 RAM memory

**URL:** <https://forum.inductiveautomation.com/t/ignition-8-3-ram-memory/115226>\
**Category:** Ignition\
**Tags:** perspective, ignition83\
**Created:** [April 23, 2026, 11:32pm UTC](https://forum.inductiveautomation.com/t/ignition-8-3-ram-memory/115226 "2026-04-23T23:32:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Arr](https://avatars.discourse-cdn.com/v4/letter/a/7ab992/32.png) [@Arr](https://forum.inductiveautomation.com/u/Arr)\
**Post date:** [April 23, 2026, 11:32pm UTC](https://forum.inductiveautomation.com/t/ignition-8-3-ram-memory/115226/1 "2026-04-23T23:32:47Z")

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Hi,

I am working on SCADA using Ignition Perspective 8.3 on a plant with one Gateway, one PLC, one database for recipes, Core historian and about 6 Perspective clients (during the normal production there will be 4 of them but during tests it may be even 6). In the project there will be over 10 000 tags. The Gateway is running on a Virtual Machine (the system is Windows Server 2022 Standard) with 8GB of RAM.

My question is about the usage of RAM memory by Gateway processes. How much RAM memory should I give to the Gateway? We have a local server at the office where we test the SCADA with PLC and the RAM usage is around 1GB (the limit is set to 2GB). I am afraid that the usage of RAM on the server on plant will be bigger and I am not sure how much RAM should I give to Gateway and how much should I leave to the Virtual Machine.

Thank You

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**Author:** ![lane.duncan](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lane.duncan/32/83700_2.png) [@lane.duncan](https://forum.inductiveautomation.com/u/lane.duncan)\
**Post date:** [April 24, 2026, 3:22am UTC](https://forum.inductiveautomation.com/t/ignition-8-3-ram-memory/115226/2 "2026-04-24T03:22:22Z")

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> **[Ignition Server Sizing and Architecture Guide](https://inductiveautomation.com/resources/article/ignition-server-sizing-and-architecture-guide)**
>
> This guide is intended to provide some tips to help you determine the correct architecture depending on your requirements. It is important to note that any architecture that you come up with needs to be fully tested and verified. Throughout that...

According to this guide your project is a medium size project requiring 4 CPU cores and 4 GB memory…..so you are good for a starting point.

I would encourage you to create a separate VM for the database so that it doesn’t fight Ignition for resources.

I also prefer Linux OS (Ubuntu) for the VM instead of MSFT. Usually IT policies have rules for this so it may not be a choice, but it is a conversation worth having.