AMD's hybrid processor, Opteron, has been adopted by a number of server makers, including Hewlett-Packard and IBM.
Sun introduced a low-end server family this week, based on AMD's technology and ranging in price from £1,900 to £2,677.
In a research paper on hybrid 32/64-bit technology, analyst group Gartner advised users to evaluate the potential price and performance advantages of deploying Opteron-based servers for running applications such as terminal services, web servers, high performance computer clusters and mainstream 32-bit applications.
But Meta analyst Michael Burlison could see no benefit for users running 64-bit desktop systems based on Opteron or a future Intel hybrid chip. He said, "From an end-user perspective, 64-bits will not make much difference on the desktop." He advised users to invest in faster 32-bit systems and more installed memory.