OBS GPU Server, GPU Server Virtualization, Cheap OBS VPS

OBS live broadcast requires games and video streams to run simultaneously, which requires GPU to provide performance acceleration because it must synthesize and render game scenes.

Although this may be technically feasible, GPUs are still more efficient than CPUs in performing such tasks. In most cases, using the CPU will have a negative impact on the system, rendering, and coding performance.

Your PC is remotely connected to the GPU server: This includes your PC's hardware and network.
GPU server: GPU model, bandwidth, server resources, data left, etc.
Live broadcast platforms: Twitch, YouTube, Facebook Gaming, etc.
Video stream processing: obs studio, Decord, Streamlabs.
Live broadcast optimization tool: Nvidia Broadcast.
Your audience's device: Remember that 35% of Twitch viewers use mobile devices.

Preventing GPU overload comes down to preventing your GPU from doing more than it must. If your GPU has unlimited processing power, you can continue to run all games at an unlimited frame rate. However, this is not the case. Even a powerful GPU has only limited resources to do things. This means that if we want it to do many things (for example, playing games, synthesizing and rendering OBS scenes, doing all the other things that the operating system wants it to do, running hardware coding without a dedicated chip, etc.), we must improve the model and number of GPUs.

Extensive support from manufacturers and software suppliers unique to professional GPU is required.
Use highly optimized programs for professional GPUs (e.g., high-end CAD/CAM applications, scientific and engineering simulations, etc.) that use additional VRAM, processing units, and ECC memory.
It requires functions such as virtual GPU or the ability to drive a large number of high-resolution displays or run stereo 3D displays.
Need to run multiple GPUs 24/7 in a compact server environment without periodic downtime for maintenance (driver updates, etc.)
It is believed that the certified reliability and functions of professional cards will prove that they have higher upfront costs than consumer cards.

Nvidia Quadro RTX A5000 is the best card for streaming because you'll be able to stream in 4k while keeping your frames above 60 and even 100 for most games. The only real downside to this card comes from its power usage. NVIDIA recommends a 750W PSU (power supply unit) for running this card.

GeForce Experience makes it easy to live broadcast gameplay from your entire PC library using the live streaming service of your choice. GeForce Experience supports live broadcasting with Facebook Live, YouTube Live, and Twitch.

Virtualizing a GPU server to run multiple OBS applications at the same time involves using virtualization software, such as VMware or Hyper-V, to create multiple virtual machines (VMs) on the server. Each VM is isolated from the others and can have its own operating system and software stack, including OBS. Here's a general outline of the steps to virtualize a GPU server for OBS:
1. Install virtualization software on the server: Choose a virtualization solution that is compatible with the server's hardware and operating system.
2. Create virtual machines: Use the virtualization software to create multiple VMs on the server. Assign the appropriate amount of CPU, memory, and storage to each VM.
3. Install operating systems on each VM: Choose the operating system that you prefer, such as Windows or Linux, and install it on each VM.
4. Install OBS on each VM: Download and install OBS on each VM.
5. Assign GPU resources: Use the virtualization software to assign GPU resources, such as dedicated GPU memory, to each VM. This will ensure that each VM has the necessary GPU resources to run OBS smoothly.
6. Configure network settings: Set up the network settings for each VM, such as IP addresses and firewall rules, so that the VMs can communicate with each other and the outside world.
7. Start the VMs: Start each VM and log into them. Launch OBS on each VM and test the live streaming and recording capabilities.
By virtualizing a GPU server and running multiple OBS applications on separate VMs, you can maximize the use of the server's GPU resources and provide isolated environments for each OBS application, improving the performance and stability of your live streams.

There are two different types of video resolution. They could be classified as Standard Definition or SD and High Definition or HD. Here is a concise form of various sorts of video resolution for better understanding.

720p = 1280 x 720 – is popularly known as HD or HD Ready resolution.
1080p = 1920 x 1080 – is called FHD or Full HD resolution.
2K = 2048 x 1080 – this means the displays that have about 2000 pixels horizontal resolution. This is considered as a different resolution standard, although it is close to the 1080p resolution standard.
1440p = 2560 x 1440 – is usually known as QHD or Quad HD resolution, and could be found on high-end smartphones and on gaming monitors.
4K or 2160p = 3840 x 2160 – is popularly known as 4K, UHD or Ultra HD resolution.
8K or 4320p = 7680 x 4320 – is commonly known as 8K resolution, which is 16 times more pixels than the regular 1080p FHD or 'Full HD'.

For streaming in 4K, we recommend dedicated GPU server with GTX 1650 and higher graphics cards. GPUMart's Basic GPU-GTX 1650 server is powered by an NVIDIA GTX 1650 GPU and has 40 vCPUs, 64 GB of memory, and 120GB + 960GB SSD storage. It's an excellent option for high-performance video encoding and transcoding for 4K streaming.