justinhimself/hashcat-nvopencl repository overview

⁠HashCat-NVidia-OpenCL

This is a minimal image (~200MB) that supports running hashcat on nvidia gpus using opencl.
Original dockerfile is sourced from dizcza/docker-hashcat⁠, stripped cuda support to drastically reduce image size.

⁠Quick Start

Make sure the host has nvidia drivers and NVidia Container Toolkit⁠ properly installed.

docker run --gpus all --rm -it justinhimself/hashcat-nvopencl /bin/bash
$ nvidia-smi
$ hashcat -I
$ hashcat -b

For more information, refer to the official hashcat documentation⁠.

⁠Performance Comparison

The following benchmarks were conducted on a Tesla P4 GPU using two separate environments: OpenCL 3.0 and CUDA 12.9.40, both with Hashcat v6.2.6 and default optimization settings.

The results indicate that switching to the CUDA backend yields a modest overall hashrate improvement of 4.68% compared to OpenCL, with no significant performance differences observed across individual hash modes.

⁠Chart

⁠Table