

With crit factored in, Cobalt Sword puts out 131.4 DPS against 92.7 for Beam Sword — about 42% more damage per second. Base hits are Beam Sword 52 vs Cobalt Sword 40, so the gap comes as much from attack speed and crit as from raw damage.
Cobalt Sword swings faster at a 19-tick use time versus 35, so it lands on-hit debuffs like ichor, procs set bonuses, and reapplies knockback more often — an edge the flat DPS figure understates.
For crowd control, Beam Sword hits with more knockback (6.5 vs 5), keeping enemies at range while you reposition.
Both are Melee weapons, so the same armor set and class accessories buff either one — you can swap between them without rebuilding your loadout.
| Stat | Beam Sword | Cobalt Sword |
|---|---|---|
| Damage | 52 | 40 |
| Use time | 35 ticks | 19 ticks |
| Crit chance | 4% | 4% |
| Knockback | 6.5 | 5 |
| Defense | 0 | 0 |
| Mana cost | 0 | 0 |
| Shoot speed | 11 | 0 |
| Sells for | 60 | 1 38 |
Beam Sword averages 92.7 DPS with crit. Cobalt Sword averages 131.4 DPS with crit. Cobalt Sword is ahead by 38.7 DPS.
Cobalt Sword has the shorter 19-tick use time, so it attacks faster than Beam Sword at 35 ticks.
Yes — both are Melee weapons and share the same armor and accessory bonuses.
Yes — both belong to the early-hardmode tier.