Is it normal that Intel GPU is slower than CPU?

[vinix]

I have a Win10 x64 PC with i5-3450. When I run hashcat 5.1.0 with Intel® CPU Runtime for OpenCL™ Applications 18.1 installed, I can get about 245 mH/s for NTLM hash.

However, if I uninstalled that CPU-only runtime and installed the latest Intel® Graphics Driver for Windows 15.33.50.5129, the speed is much slower, only 90775.0 kH/s.

Is it normal?