The following compares the current state of Demonology Warlocks to Frost Death Knights using the latest SimulationCraft data for end-game PvE in World of Warcraft The War Within patch 11.0.2.
Comparison
Category
Winner
Frost Death Knight
+12.26%
When simulating boss fight encounters, Frost Death Knights averaged 12.26% more DPS than Demonology Warlocks (+187K DPS).
Frost Death Knight
+9.17%
When simulating AoE DPS, Frost Death Knights averaged 9.17% more DPS than Demonology Warlocks (+75K DPS).
Frost Death Knight
+44.65%
Frost Death Knights have higher spike damage potential, achieving +2.4M more DPS than Demonology Warlocks.
Spike damage is the peak DPS achieved in any given moment and is not sustained DPS.
Demonology Warlock
+2.55%
When upgrading the gear for both specs by +44 ilvl, Demonology Warlock DPS improved the most, +2.55% more than Frost Death Knight. In total, Demonology Warlocks DPS increased by 67.63% and Frost Death Knights by 65.08%.
Frost Death Knight
+4.69%
+ Movement and latency lowered the DPS by 14.08% for Frost Death Knights.
+ Movement and latency lowered the DPS by 18.77% for Demonology Warlocks.
When introducing occasional movement and real-world latency, Frost Death Knights performed better, as Demonology Warlocks suffered a +4.69% DPS loss.
Demonology Warlock
When evaluating abilities used during boss encounters, Demonology Warlocks had fewer damaging abilities in total, indicating a potentially less complex rotation.
The comparisons above highlight some of the key differences between Demonology Warlock and Frost Death Knight in the current meta, which can hopefully help you determine which spec to play or group up with.
Frost Death Knight
Demonology Warlock