SYSTEM-REQUIREMENTS  Sims-1 Expansion Memory  Processor Videocard  The Sims  64 MB  233 Mhz  2 MB  Hot Date  64 MB  233 Mhz  2 MB  Party  64 MB  233 Mhz  2 MB  Vacation  64 MB  233 Mhz  2 MB  Pets  64 MB  350 Mhz  2 MB  Superstar  128 MB  450 Mhz  4 MB  Makin'Magic  128 MB  450 Mhz  4 MB          Sims-2  Sims-2  256 MB  800 Mhz  32 MB T&L  Nightlife  256 MB  1,0 Ghz  32 MB T&L  Univeristy  256 MB  1,0 Ghz  32 MB T&L Open For Business  256 MB  1,0 Ghz  32 MB T&L  Pets  256 MB  1,3 Ghz  32 MB T&L  Seasons  256 MB  Vista 512 MB  1,3 Ghz  32 MB T&L  Bon Voyage  512 MB  Vista 1 GB  1,3 Ghz  Vista 2,0 Ghz  32 MB T&L  Free Time  512 MB  Vista 1 GB  1,3 Ghz  Vista 2,0 Ghz  32 MB T&L  Appartements 1GB Vista 2GB 1,8 Ghz Vista 2,4 GhZ  64 MB T&L  Mansion & Garden 1GB Vista 2GB 1,8 Ghz Vista 2,4 GhZ  64 MB T&L         When your video-card does not have the capablility of T&L you need 128MB on your card With 5 or more axpansion you require 512 MB system RAM in XP or 1 GB in Vista            SIMS-3  estimated source: http://www.sims3.info/faq.htm#2 Sims-3  2 GB  dual-core 2.0Ghz = 4Ghz 512MB dedicated momeory, not shared         Stories  Petstories  256 MB  1,4 Ghz  32 MB T&L  Lifestories  256 MB  1,4 Ghz  32 MB T&L  Castaway  256 MB  Vista 1 GB  1,8 Ghz  32 MB T&L