Amazon Elastic Compute Cloud
User Guide for Windows Instances

Windows Accelerated Computing Instances

If you require high parallel processing capability, you'll benefit from using accelerated computing instances, which provide access to NVIDIA GPUs. You can use accelerated computing instances to accelerate many scientific, engineering, and rendering applications by leveraging the CUDA or Open Computing Language (OpenCL) parallel computing frameworks. You can also use them for graphics applications, including game streaming, 3-D application streaming, and other graphics workloads.

Accelerated computing instances run as HVM-based instances. Hardware virtual machine (HVM) virtualization uses hardware-assist technology provided by the AWS platform. With HVM virtualization, the guest VM runs as if it were on a native hardware platform, which enables Amazon EC2 to provide dedicated access to one or more discrete GPUs in each accelerated computing instance.

You can cluster accelerated computing instances into a placement group. Placement groups provide low latency and high-bandwidth connectivity between the instances within a single Availability Zone. For more information, see Placement Groups.

For information about Linux accelerated computing instances, see Linux Accelerated Computing Instances in the Amazon EC2 User Guide for Linux Instances.

Accelerated Computing Instance Families

Accelerated computing instance families use hardware accelerators, or co-processors, to perform some functions, such as floating point number calculation and graphics processing, more efficiently than is possible in software running on CPUs. The following accelerated computing instance families are available for you to launch in Amazon EC2.

P2 Instances

P2 instances use NVIDIA Tesla K80 GPUs and are designed for general purpose GPU computing using the CUDA or OpenCL programming models. P2 instances provide high bandwidth networking, powerful single and double precision floating-point capabilities, and 12 GiB of memory per GPU, which makes them ideal for deep learning, graph databases, high performance databases, computational fluid dynamics, computational finance, seismic analysis, molecular modeling, genomics, rendering, and other server-side GPU compute workloads.

G2 Instances

G2 instances use NVIDIA GRID K520 GPUs and provide a cost-effective, high-performance platform for graphics applications using DirectX or OpenGL. NVIDIA GRID GPUs also support NVIDIA’s fast capture and encode API operations. Example applications include video creation services, 3D visualizations, streaming graphics-intensive applications, and other server-side graphics workloads.

CG1 Instances

CG1 instances use NVIDIA Tesla M2050 GPUs and are designed for general purpose GPU computing using the CUDA or OpenCL programming models. CG1 instances provide customers with high bandwidth networking, double precision floating-point capabilities, and error-correcting code (ECC) memory, making them ideal for high performance computing (HPC) applications.

Hardware Specifications

For more information about the hardware specifications for each Amazon EC2 instance type, see Amazon EC2 Instances.

Accelerated Computing Instance Limitations

Accelerated computing instances have the following limitations:

AMIs for Accelerated Computing Instances

To help you get started, NVIDIA provides AMIs for accelerated computing instances. These reference AMIs include the NVIDIA driver, which enables full functionality and performance of the NVIDIA GPUs.

For a list of AMIs with the NVIDIA driver, see AWS Marketplace (NVIDIA GRID).

You can launch accelerated computing instances using any HVM AMI.

Installing the NVIDIA Driver on Windows

To install the NVIDIA driver on your Windows instance, log on to your instance as the administrator using Remote Desktop. You can download NVIDIA drivers from Select the appropriate driver for your instance type:

  • P2 instances: K-Series K-80

  • G2 instances: GRID K520

  • CG1 instances: Tesla M-Class M2050

Open the folder where you downloaded the driver and double-click the installation file to launch it. Follow the instructions to install the driver and reboot your instance as required. To verify that the GPU is working properly, check Device Manager.


If you launch a multi-GPU instance with a Windows AMI that was created on a single-GPU instance, Windows does not automatically install the NVIDIA driver for all GPUs. You must authorize the driver installation for the new GPU hardware.

You can correct this manually in the Device Manager by opening the Other device category (the inactive GPUs do not appear under Display Adapters). For each inactive GPU, open the context (right-click) menu and choose Update Driver Software, and then choose the default Automatic Update option.

When using Remote Desktop, GPUs that use the WDDM driver model are replaced with a non-accelerated Remote Desktop display driver. To access your GPU hardware, you must use a different remote access tool, such as VNC. You can also use one of the GPU AMIs from the AWS Marketplace because they provide remote access tools that support 3-D acceleration.