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IBM · 9 models

IBM servers

Every IBM server certified under ENERGY STAR and listed for the US market, fastest first. Each model page has the full certified specs and comparable machines from other makers.

ModelTypeProcessor socketsProcessor (as tested)Idle power (typical config)
IBM Power E1050Rack-mount4Power101,284 W
IBM Power E1150Rack-mount4Power11 Feature Code EPEX1,526 W
IBM Power S1012Rack-mount1Power10175 W
IBM Power S1014Rack-mount1Power10366 W
IBM Power S1022Rack-mount2Power10582 W
IBM Power S1022sRack-mount2Power10447 W
IBM Power S1024Rack-mount2Power10738 W
IBM Power S1122Rack-mount2Power11 Feature Code EBG8755 W
IBM Power S1124Rack-mount2Power11 Feature Code EP3X838 W

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Other IBM machines

Source: ENERGY STAR certification data, US EPA. Data build 2026-09-29. Brand names are as the maker certified them, with obvious variant spellings merged.