Dell Tuesday upgraded its line of workstations, introducing a quad-core system that packs graphics and processing power that the company said is the highest level of performance available on its workstations.

The dual-socket Dell Precision T5400 and the Precision T7400 come with Intel's power-efficient Penryn processors -- the quad-core Xeon 5400 and dual-core 5200 processors -- chips made using the 45-nanometer manufacturing process.

With multicore and multithreading capabilities, the machines provide the scalability and boost graphics performance to run specialized applications specific to the fields of engineering, science and digital content, Dell said. A better chip design provides a faster data path between processors, memory, and chip set, speeding up memory-intensive applications.

A dual-socket design supports up to two Xeon processors that operate at speeds of up to 3.2GHz. It will also come with PCI Express Gen2 graphics slots to provide improved graphics capabilities, according to Dell, and will support up to four monitors. The systems will support up to 128GB of RAM.

Prices for Precision T5400 starts at $1,600, while pricing for Precision T7400 starts at $1,850.

Continuing its enterprise push, Dell also began selling the Google Search Appliance and Google Mini, hardware boxes loaded with Google's search engine software that lets companies index and find information stored on corporate servers. Both boxes can index data from 220 file types including HTML, PDF (Portable Document Format), and Microsoft Word.

The Google Search Appliance, targeted at larger enterprises, starts at $30,000, and appliances can index between 3 million and 30 million documents, although larger configurations are available, Dell said.

The Google Mini, designed for small and medium-size businesses, indexes between 50,000 documents and 300,000 documents, and prices start at $1,995.