http://www.adobe.com/support/techdocs/328850.html

This refers to Production Studio from the above adobe site:

Premium edition

-- Intel Pentium 4 1.4GHz processor for DV (Pentium 4 3.4GHz processor supporting Hyper-Threading Technology for HDV; dual Intel Xeon 2.8GHz processors for HD; SSE2-enabled processor required for AMD systems)
-- Microsoft Windows XP Professional Edition or Windows XP Home Edition, with Service Pack 2
-- 512MB of RAM (1GB required when running multiple applications and when using Adobe Dynamic Link, 2GB required for HDV and HD)
-- 21GB of available hard-disk space for installation (additional 10GB or more recommended for After Effects disk caching)
-- Dedicated 7200RPM hard disk for DV and HDV editing; striped disk array storage(RAID 0) for HD
-- Microsoft DirectX-compatible sound card (multichannel ASIO-compatible sound card required for surround sound support)
-- OHCI-compatible IEEE 1394 interface for DV and HDV (AJA Xena HS for HD)
-- Internet or phone connection required for product activation and Internet-related services
-- For OpenGL support: An Adobe After Effects supported OpenGL 2.0 card (NVIDIA recommended). See complete listing at www.adobe.com/products/aftereffects/opengl.html.
-- Adobe-recommended graphics card required for GPU-accelerated playback. See complete listing at www.adobe.com/compatiblehardware).