The base – that is, out of the box – version of QuickBooks is for financial/accounting only – you have to purchase industry specific versions for manufacturing, wholesale, professional service firms, contractors, non-profit entities, and retailers. QuickBooks is best for very small companies, supporting only 1-5 active users with their general accounting needs.
Sage ERP X3, on the other hand, supports all those things right out of the box – it covers discrete, process, and mixed mode manufacturing, advanced financials, wholesale distribution, contractors, etc. – all without purchasing additional software. Its functionality extends from accounting to inventory control, material resource planning, shop floor control, supply chain management, and even human resources. It is also more flexible in terms of size capabilities: it is best suited for 50-1,500 employees, all of whom can be working in the system concurrently.