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rFactor 2 – Dedicated Server Requirements Revealed

Image Space Incorporated has revealed the required specs to run a dedicated server of their upcoming rFactor 2 simulation.

Following the general system requirements that were revealed back in September, Image Space Incorporated has now revealed the requirements for dedicated servers that want to run the upcoming rFactor 2 simulation.

Keep in mind that these values are general guide-lines, the requirements depend on the kind of tracks and cars as well as the number of users racing on the server.

96 Kbits/sec per user for server populations less than 10
256 Kbits/sec per user for server populations between 10 and 20
768 Kbits/sec per user for server populations between 20 and 30

While this is track and vehicle dependent a user can expect something close to these approximations on:

RAM use:
Approximately 200 MB per server instance for server populations less than 10
Approximately 300 MB per server instance for server populations between 10 and 20
Approximately 400 MB per server instance for server populations between 20 and 30

CPU Usage:
This is also dependent on the server population and number of AI drivers but we would account for at least 250 MHz per server instance and on modern CPU, for example if you have a 2.5 GHz dual core you can run 20 servers (10 per core, 10 * 250 Mhz = 2.5 GHz) on that CPU if you have other requirements mentioned above meet. Floating point unit required.

rFactor 2 will introduce various improvements to the modding-friendly simulation including weather, driver animations and a refined graphics engine alongside plenty of current and historic motor racing content. In a recent blog, ISI’s Tim Wheatley hinted at an upcoming public beta phase for the title.

  • Anonymous

    looks like the server requirements are pretty lean. Does anyone know if theyve made any improvement to the server interface? Enabled real time web reporting, track monitoring, tiered F1 style qualifying, etc?

  • Steven Ciofalo

    Bandwidth use is off the wall. That is a minimum Bandwidth on a 30 player server of 23Mbit/s. Not sure if that is up, down or a combination.

    • Mojo66

      It is not that hard to estimate server bandwith usage yourself. First of all, it is important that the overall bandwith (in and out) scales with the number of players n by n+n*(n-1)= n^2. To get the total bandwith required, this has to be multiplied by the number of bits transmitted and the sample rate. We assume single precision (32 bit) format. We need the world coordinates x,y,z, and their first and second order derivatives, dx,dy,dz and dx2, dy2, dz2. Plus the same triple vector for the orientation of a car. Plus some misc data like engine revs, etc, lets assume 20 data points per car, which makes 640 bit per player. The above formula yields 576 kbit per sec at a sample rate of 1 Hz, which is obviously not enough. I’m not not sure what a realistic sample rate would be given that we can assume a smooth trajectory, maybe 15 Hz, so we end up with 8.3 Mbit/s. So either they are transmitting more info per user, or the sample rate is higher. But we see that without compression or movement prediction we easily end up around 10 Mbit/s at 30 users.

  • Mojo66

    A list of supported operating systems would be nice, or is it Windows only?

  • yorch sincla

    This requeriments pulls down the “home” dedicated servers usage. In terms of bandwith it’s almost 15X Rfactor 1 needs…

    • Elizabeth Sterling


  • Anonymous

    Well, so much for hosting races…  Even though I get 12Mbps down, I only get 1Mbps up.  I think many are going to be in the same situation with regard to the upload.

    • Elizabeth Sterling


  • Anjali Rathod

    I need a good, reliable Dedicated Server. I can use personally and recommend to others. Any ideas?

  • Steve Cutajar

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