AMD isn't letting Intel's process technology advantage discourage it from competing it in the low-power, quad-core server processor space. In a press release, AMD brags that its HE-series quad-core Opterons have made their way into servers from global vendors and smaller system builders alike.
The HE series spans 2P-capable Opteron 2300-series and MP-capable Opteron 8300-series chips, and it includes models clocked at modest speeds of 1.7GHz, 1.8GHz, and 1.9GHz. However, true to their suffix (which stands for "Highly Efficient"), the chips all have power envelopes of just 55W—that's 20W less than other, non-HE quad-core Opterons that run at up to 2.3GHz. AMD says buyers will find the new CPUs in two-, four-, and eight-way rack servers and blades alike.
We took a cursory look through server lineups from major vendors for machines based on the HE CPUs, and we found that HP's ProLiant DL165 G5 comes with an optional 1.8GHz Opteron 2346 HE. We didn't see any HE chips in servers from Dell, IBM, or Sun, though.