HP Pavilion ZE2311ea is based on previous generation AMD platform so it use AMD Mobile Sempron 3000+ with PowerNow! technology running on 1.8GHz. PowerNow! is AMD technology for power saving, which basically means that processor and memory works on lower frequency when full speed is not needed, so it consume less power and battery last longer. Built in 15"' diagonal XGA TFT BrightView!! display is quite bright and clear and long working hours will not be so stressful for you eyes. Also Hp chose ATI RADEON XPRESS 200M card, which is quite enough for office use, but just forget new 3D games or some advanced 3D work. Tested PC come with 512 MB DDR SDRAM which is expandable to 1GB. Which is a good idea because build in ATI RADEON XPRESS 200M use 128MB of the RAM memory.