It does not support Intel graphicshttp://www.sonycreativesoftware.com/vegaspro/gpuacceleration
Supported cards for GPU-acceleration
To take full advantage of the GPU-acceleration in Vegas Pro 11, you will need a supported card with at least 512 MB of GPU memory.
Requires a CUDA-enabled GPU and driver 270.xx or later. GeForce GPUs:
GeForce GTX 4xx Series or higher (or GeForce GT 2xx Series or higher with driver 285.62 or later).
Quadro GPUs: Quadro 600 or higher (or Quadro FX 1700 or higher with driver 285.62 or later).
NVIDIA recommends NVIDIA Quadro for professional applications and recommends use of the latest boards based on the Fermi architecture.
Requires an OpenCL-enabled GPU and Catalyst driver 11.7 or later with a Radeon HD 57xx or higher GPU. If using a FirePro GPU, FirePro unified driver 8.85 or later is required.