There are multiple versions of Powerdirector.
Powerdirector 8 has a 32 bit version (Deluxe) and a 64 bit version (Ultra).
Powerdirector 9 has Deluxe which is 32 bit and Ultra is 64 bit.
As far as I know Powerdirector 10 is like Powerdirector 9 in the 32 bit and 64 bit versions.
Powerdirector 11 has Director Suite (Everything), 64 bit or 32 bit depending on your OS.
Powerdirector 11 Program only has:
Powerdirector 11 Deluxe=32 bit
Powerdirector 11 Ultra=64 bit
Powerdirector 11 Ultimate=64 bit.
The performance you get depends on the version of Powerdirector you are using and the Computer system you are using Powerdirector on.
Powerdirector, any version will install a 32 bit version on any 32 bit computer system.
A under powered computer will struggle with HD content.
That is true with anybodies Video Editor.
Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.