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Business computersENERGY STAR certified

HP Z4 G6i Workstation ENERGY STAR

512 GB workstation computer, model number Z4 G6i Workstation.

Memory

512 GB

Processor

Xeon® 678X

Typical electricity use

68.8 kWh/yr

CPU cores

48

Of 60 certified workstation business computers, 36 have a lower typical electricity use than the HP Z4 G6i Workstation ENERGY STAR (68.8 kWh/yr).

Its certified typical electricity use of 68.8 kWh/yr costs about $8.94 a year at 13¢/kWh.

Maker
HP
Model
HP Z4 G6i Workstation ENERGY STAR
Model number
Z4 G6i Workstation
Type
Workstation
Processor
Xeon® 678X
CPU cores
48
Memory
512 GB
Storage
Solid State Drive, Hard Disk Drive
Operating system
Linux
Marketed as a workstation
Yes
Typical electricity use
68.8 kWh/yr
Power in sleep
12.8 W
Power at long idle
114 W
Power when off
3.8 W
On the market since
Mar 2026
ENERGY STAR certified
23 Dec 2025

Source: ENERGY STAR certified business computers dataset, US EPA, record 4519402, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the HP Z4 G6i Workstation ENERGY STAR

Certified business computers from other makers, same color class, within 20% of its speed.

ModelTypeProcessorMemoryTypical electricity use
ASUS Pro ET900A X9WorkstationRyzen Threadripper512 GB109 kWh/yr
Lenovo ThinkStation P5WorkstationXeon W7-2495X512 GB66.4 kWh/yr
DELL D33MWorkstationXeon 658X512 GB73.2 kWh/yr

HP

More HP business computers

ModelTypeProcessorMemoryTypical electricity use
HP OmniBook 5 14 inch Laptop AI PC ENERGY STARNotebookIntel Core 7 35016 GB9.2 kWh/yr
HP Fortis G2m 14 inch Chromebook ENERGY STARNotebookMediaTek Kompanio 54016 GB7.6 kWh/yr
HP Fortis G2m 11 inch Chromebook ENERGY STARNotebookMediaTek Kompanio 5408 GB6.5 kWh/yr
Fortis Flip G2m 11 inchNotebookMediaTek Kompanio 54016 GB6.3 kWh/yr
HP ProBook 4 G2iS 14 ENERGY STARNotebookCore 7 35032 GB9.2 kWh/yr
HSN-I70CNotebookRyzen AI Max+ PRO 495192 GB21.7 kWh/yr
HP Elite t655 Thin ClientDesktopR23148 GB26 kWh/yr
14c-cfNotebookSnapdragon X1E8010032 GB19.9 kWh/yr

All HP business computers