See the system requirements below.

• Windows XP SP2 (SP3) 32bit, Vista 32bit SP1 and Vista 64bit SP1*, XP SP3 depending on availability.
• Intel® Pentium® or AMD® Athlon® 1.8 GHz or higher (2.4 GHz recommended)
• Intel® Pentium® HT or AMD® Athlon® 2.4 GHz or 1.6 GHz Dual core required for Windows® Vista
• Intel® Core™2 Duo 2.4 GHz or higher required for AVCHD editing (2.66 GHz Quad Core for AVCHD 1920 )
• 512 MB RAM (1 GB recommended)
• 1 GB required for HD and/or Vista (2 GB recommended)
• 2 GB required for AVCHD
• DirectX® 9 or higher Hardware compatible graphics card with 64 MB (128 MB recommended, 128MB required for Vitascene)
• 128 MB required on Vista (256 MB ATI® Radeon®9600+ or NVIDIA® GeForce™ 6 or higher recommended)
• 256 MB required for HD and AVCHD editing (ATI® Radeon®9600+ or NVIDIA® GeForce™ 6 or higher recommended)
• DirectX 9 or higher compatible sound card

• Studio 12 is a 32-bit application; however, it will run fine under Vista 64.
  
  NOTE: There is a mistake in the System Requirements in the Studio 12 readme (12.0 release) and this FAQ supersedes that information.