Capcom Lost Planet: Extreme Condition for Windows "pentium 3 ram compatibility" Questions

...III 800MHz Processor (Pentium 4 1.2GHz Recommended) 256MB RAM 600MB Hard Disk Space 32MB DirectX compatible 3D Video Card 8X CD-ROM or DVD-ROM Drive DirectX compatible Sound Card Mouse DirectX ...

3 GHz Intel Pentium 4 or equivalent processor - 1GB System Ram - ATI Radeon X800 series, NVIDIA GeForce 6800 series or higher video card 1.2. Minimum System Requirements Minimum System Requirements: -

...Pentium 4 @ 3 GHzMemory: 512 MB (1 GB for Vista) Hard Drive: 8 GB Free Video Memory: 256 MB (nVidia GeForce 6600 SM3 Required)Sound Card: DirectX Compatible DirectX: 9.0c Keyboard & Mouse DVD Rom ...

3. My OS is XP so I'm ok there. 4. 512 MB RAM required. I have 768 MB RAM on the Pentium computer and only 468? MB RAM on the AMD Athlon computer... but I could add RAM if that's the only thing I need