AMD has now updated its server CPU line-up with seven new 45nm Opterons, five of which bear the HE moniker, meaning they are low-power parts. To start off on a high note though, we have to mention the not so energy efficient models, the 2.8 GHz-clocked 8386 SE and 2386 SE.

As listed below, in addition to the two 105W ACP (Average CPU Power) 2.8 GHz Opterons, AMD has let loose the 55W ACP-featuring 2.3 GHz 8376 HE and 2376 HE, the 2.2 GHz 8374 HE and 2374 HE, plus the 2.1 GHz 2372 HE.

"In the current economic environment, datacenter managers are under more pressure than ever to reduce costs without compromising the latest features or performance," said Patrick Patla, general manager, Server and Workstation Business, AMD. "The new Quad-Core AMD Opteron HE series processor offers unrivaled performance-per-watt and cost-efficiencies for a wide range of configurations without a potential front-side bus bottleneck. In the second quarter AMD plans to take energy-efficiency to the next level in introducing even lower ACP processors for the unique demands of cloud computing environments."

According to AMD, servers based on the new Opteron HE processors are now available from Dell and Sun.