GPU

LarkXR supports a range of NVIDIA GPU series for rendering. The required GPU tier depends on the deployment type and the number of concurrent streaming sessions needed. Select the appropriate GPU series and driver version based on your deployment requirements.

### GeForce Series

GeForce GTX 970 and above

> **Note:**
> 1. Requires connection to a physical monitor or the use of a graphics card spoofing (headless) tool.
> 2. Driver version compatibility for concurrent streams:
>    - Driver v551.23 and above: up to **8** concurrent streams
>    - Driver v531.61 and above: up to **5** concurrent streams
>    - Older versions: up to **2–3** concurrent streams
>
>    For higher concurrency requirements, please contact customer service.

### Quadro Series

Supported models: P4000, P5000, P6000, RTX4000, RTX5000, RTXA5000, etc.

> **Note:**
> 1. Requires connection to a physical monitor or the use of a graphics card spoofing (headless) tool.

### Tesla Series

Supported models: P40, V100, M60, T4, A10, A40, L4, etc.

> **Note:**
> 1. Requires Grid drivers and the corresponding NVIDIA vGPU license authorization.

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## Installation Guide

### 1. GeForce Series — Driver Installation

1. Visit the NVIDIA official website to download the appropriate driver: [NVIDIA Official Driver Download](https://www.nvidia.cn/geforce/drivers/)
2. During the installation process, select **"NVIDIA Graphics Driver"** as the installation type.

### 2. Tesla T4 — Grid License Setup (Step-by-Step)

**Step 1:** Apply for authorization by purchasing a license from NVIDIA or an authorized integrator.

**Step 2:** After approval, register your product using the link below:
[Product Registration Link](https://enterpriseproductregistration.nvidia.com/?LicType=COMMERCIAL&ProductFamily=SXN)

**Step 3:** After registration, NVIDIA will send a response email within approximately 24 hours. Follow the instructions to set up the Grid license server:
[Grid Software Quick Start Guide](https://docs.nvidia.com/grid/latest/grid-software-quick-start-guide/index.html)

**Step 4:** Open the NVIDIA Control Panel, navigate to **Licensing**, select **"Quadro Virtual Data Center Workstation"**, and enter the IP address and port number of your license server.

**Step 5:** Verify that the Grid license is active:
1. Open a Command Prompt and navigate to: `C:\Program Files\NVIDIA Corporation\NVSMI`
2. Run the command: `nvidia-smi.exe -q`
3. Confirm that the license type shows **DWS** and the license status is **"Licensed"**.