Dell and HP revenue growth in server market outpaced IBM and Sun Microsystems in server market, while overall growth slowed in the first quarter of 2005.

In summary, the overall market grew 4.1 percent to USD$12.3 billion worldwide compared with the year-earlier quarter, a rate that was slower than that of each quarter since the second of 2003, according to figures Gartner released Wednesday.

Rank in server market:-

1. IBM - 29.8 percent market share, 1.1 percent revenue growth
2. HP - 28.1 percent market share, 13.1 percent revenue growth
3. Dell - 10.8 percent market share, 13 percent revenue growth
4. Sun - 9.5 percent market share, drop 4.2 percent revenue

Rank in Unix server market:-

1. IBM - 30.3 percent market share, 12 percent revenue growth
2. HP - 28.7 percent market share, drop 0.7 percent revenue growth
3. Sun - 27.8 percent market share, drop 6.6 percent revenue growth

Rank in servers using x86 processors such as Intel’s Xeon and Advanced Micro Devices’ Opteron:-

1. HP
2. Dell
3. IBM

Rank in Blade servers:-

1. IBM
2. HP
3. Sun
4. Dell

[Source]