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Difference between HP z820 and HP z840 ?

HP Recommended
Hp z820
Microsoft Windows 10 (64-bit)

What is the main difference between HP z820 and HP z840 ?

besides front drive bays they look the same ?

Alex Hernandez
Level 7
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HP Recommended



Some principle differences are:


z820                                                                                 z840               


Xeon E5-X6XX and E5-X6XX v2                             Xeon E5-X6XX v3  and E5-X6XX v4

1600MHz  and 1866 MHz RAM                              2133MHz   and  2400MHz   < Speeds depend on processor

 M.2  AHCI support                                                     M.2 NVMe drive support



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