Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.
Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.

+X% Increased Attack SpeedIASSame against players
Increased Attack Speed shortens attack animations. Like casting, an attack is a whole number of frames, so speed only changes at breakpoints.
IAS on a weapon counts for that weapon only. IAS on gloves, a helm or charms works for every weapon you hold.
The breakpoint calculator works out the frames for a class, weapon and skill.
| Source | Gives | Lvl |
|---|---|---|
| Weapon 98 | ||
| +80% Increased Attack Speed | 41 | |
| +60% Increased Attack Speed | 68 | |
| +60% Increased Attack Speed | 84 | |
| +50% Increased Attack Speed | 0 | |
| +50% Increased Attack Speed | 0 | |
| +50% Increased Attack Speed | 0 | |
| +50% Increased Attack Speed | 0 | |
| +50% Increased Attack SpeedLadder S15 | 20 | |
| +50% Increased Attack Speed | 31 | |
| +50% Increased Attack Speed | 42 | |
| +50% Increased Attack Speed | 46 | |
| +50% Increased Attack Speed | 64 | |
| +50% Increased Attack Speed | 65 | |
| +50% Increased Attack Speed | 71 | |
| +40% Increased Attack Speed | 22 | |
| +40% Increased Attack Speed | 28 | |
| +40% Increased Attack Speed | 29 | |
| +40% Increased Attack Speed | 53 | |
| +40% Increased Attack Speed | 63 | |
| +40% Increased Attack Speed | 67 | |
| +40% Increased Attack Speed | 68 | |
| +40% Increased Attack Speed | 70 | |
| +40% Increased Attack SpeedAmazon only | 70 | |
| +40% Increased Attack Speed | 73 | |
| +40% Increased Attack Speed | 76 | |
| +40% Increased Attack SpeedAssassin only | 79 | |
| +33% Increased Attack SpeedRotW | 61 | |
| +30% Increased Attack Speed | 11 | |
| +30% Increased Attack Speed | 12 | |
| +30% Increased Attack Speed | 13 | |
| +30% Increased Attack Speed | 14 | |
| +30% Increased Attack SpeedLadder S15 | 17 | |
| +30% Increased Attack Speed | 27 | |
| +30% Increased Attack Speed | 28 | |
| +30% Increased Attack Speed | 28 | |
| +30% Increased Attack Speed | 31 | |
| +30% Increased Attack Speed | 36 | |
| +30% Increased Attack Speed | 37 | |
| +30% Increased Attack Speed | 37 | |
| +30% Increased Attack Speed | 38 | |
| +30% Increased Attack Speed | 39 | |
| +30% Increased Attack Speed | 41 | |
| +30% Increased Attack Speed | 42 | |
| +30% Increased Attack Speed | 42 | |
| +30% Increased Attack SpeedAmazon only | 42 | |
| +30% Increased Attack Speed | 43 | |
| +30% Increased Attack Speed | 64 | |
| +30% Increased Attack Speed | 68 | |
| +30% Increased Attack Speed | 68 | |
| +30% Increased Attack Speed | 70 | |
| +30% Increased Attack Speed | 70 | |
| +30% Increased Attack Speed | 75 | |
| +30% Increased Attack Speed | 75 | |
| +30% Increased Attack Speed | 81 | |
| +30% Increased Attack Speed | 82 | |
| +30% Increased Attack Speed | 85 | |
| +25% Increased Attack SpeedLadder S15was none in LoD 1.14d | 7 | |
| +25% Increased Attack Speed | 68 | |
| +25% Increased Attack Speed | 69 | |
| +25% Increased Attack Speed | 70 | |
| +25% Increased Attack Speed | 74 | |
| +20% Increased Attack Speed | 8 | |
| +20% Increased Attack Speed | 8 | |
| +20% Increased Attack Speed | 13 | |
| +20% Increased Attack Speed | 15 | |
| +20% Increased Attack Speed | 18 | |
| +20% Increased Attack Speed | 19 | |
| +20% Increased Attack Speed | 21 | |
| +20% Increased Attack Speed | 26 | |
| +20% Increased Attack Speed | 27 | |
| +20% Increased Attack Speed | 29 | |
| +20% Increased Attack SpeedLadder S15 | 30 | |
| +20% Increased Attack Speed | 31 | |
| +20% Increased Attack Speed | 31 | |
| +20% Increased Attack Speed | 42 | |
| +20% Increased Attack SpeedAmazon only | 42 | |
| +20% Increased Attack Speed | 44 | |
| +20% Increased Attack Speed | 45 | |
| +20% Increased Attack Speed | 54 | |
| +20% Increased Attack Speed | 57 | |
| +20% Increased Attack Speed | 58 | |
| +20% Increased Attack Speed | 61 | |
| +20% Increased Attack Speed | 61 | |
| +20% Increased Attack Speed | 73 | |
| +20% Increased Attack Speed | 76 | |
| +20% Increased Attack Speed | 79 | |
| +20% Increased Attack Speed | 87 | |
| +15% Increased Attack Speed | 7 | |
| +15% Increased Attack Speed | 32 | |
| +15% Increased Attack SpeedAssassin only | 67 | |
| +15% Increased Attack SpeedAmazon only | 69 | |
| +10% Increased Attack Speed | 15 | |
| +10% Increased Attack Speed | 17 | |
| +10% Increased Attack Speed | 19 | |
| +10% Increased Attack Speed | 27 | |
| +10% Increased Attack Speed | 36 | |
| +10% Increased Attack Speed | 60 | |
| +10% Increased Attack Speed | 69 | |
| Helm 5 | ||
| +30% Increased Attack Speed | 59 | |
| +20% Increased Attack SpeedRotW | 50 | |
| +20% Increased Attack Speed | 83 | |
| +10% Increased Attack Speed | 35 | |
| +10% Increased Attack SpeedBarbarian only | 61 | |
| Body Armor 2 | ||
| +20% Increased Attack Speed | 16 | |
| +15% Increased Attack Speed | 37 | |
| Gloves 6 | ||
| +20% Increased Attack Speed | 28 | |
| +20% Increased Attack Speed | 37 | |
| +20% Increased Attack Speed | 42 | |
| +20% Increased Attack Speed | 63 | |
| +10% Increased Attack Speed | 2 | |
| +10% Increased Attack Speed | 9 | |
| Belt 2 | ||
| +10% Increased Attack Speed | 27 | |
| +10% Increased Attack Speed | 51 | |
| Amulet 2 | ||
| +20% Increased Attack Speed | 50 | |
| +20% Increased Attack Speed | 65 | |
| Set bonus 9 | ||
| +30% Increased Attack Speed2 pieces worn | 6 | |
| +30% Increased Attack Speed2 pieces worn | 6 | |
| +30% Increased Attack Speed3 pieces worn | 12 | |
| +30% Increased Attack SpeedFull set | 25 | |
| +30% Increased Attack SpeedRotW2 pieces worn | 48 | |
| +25% Increased Attack Speed2 pieces worn | 30 | |
| +20% Increased Attack SpeedFull set | 4 | |
| +20% Increased Attack Speed2 pieces worn | 15 | |
| +20% Increased Attack Speed3 pieces worn | 20 | |
| Runeword 29 | ||
| +25% Increased Attack SpeedWeapon | 13 | |
| +25% Increased Attack SpeedWeapon | 21 | |
| +35% Increased Attack SpeedWeapon | 25 | |
| +15% Increased Attack SpeedWeapon | 35 | |
| +40% Increased Attack SpeedD2RLadder S3–14Body Armor | 39 | |
| +30% Increased Attack SpeedD2RLadder S3–14Weapon | 39 | |
| +20% Increased Attack SpeedWeapon | 39 | |
| +20-30% Increased Attack SpeedD2RLadder S1–2Weapon | 41 | |
| +25% Increased Attack SpeedWeapon | 43 | |
| +45% Increased Attack SpeedBody Armor | 43 | |
| +20% Increased Attack SpeedWeapon | 47 | |
| +50% Increased Attack SpeedWeapon | 49 | |
| +30% Increased Attack SpeedWeapon | 53 | |
| +20% Increased Attack SpeedD2RLadder S3–12Weapon | 53 | |
| +20% Increased Attack SpeedWeapon | 55 | |
| +40% Increased Attack SpeedWeapon | 57 | |
| +35% Increased Attack SpeedWeapon | 57 | |
| +40% Increased Attack SpeedRotWWeapon | 57 | |
| +30-40% Increased Attack SpeedWeapon | 59 | |
| +40% Increased Attack SpeedWeapon | 61 | |
| +40% Increased Attack SpeedWeapon | 63 | |
| +30% Increased Attack SpeedRotWWeapon | 65 | |
| +40% Increased Attack SpeedWeapon | 65 | |
| +20% Increased Attack SpeedWeapon | 65 | |
| +45% Increased Attack SpeedWeapon | 67 | |
| +33% Increased Attack SpeedWeapon | 67 | |
| +20% Increased Attack SpeedD2RLadder S1–2Weapon | 67 | |
| +20% Increased Attack SpeedD2RLadder S1–2Weapon | 67 | |
| +60% Increased Attack SpeedWeapon | 69 | |
| Socketed 1 | ||
| +20% Increased Attack Speedin a weapon | 29 | |
| Affix 11 | ||
| of QuicknessSuffix | +40% Increased Attack Speedrare onlyMelee Weapon | 25 |
| of QuicknessSuffix | +40% Increased Attack Speedrare onlyMelee Weapon | 46 |
| of SwiftnessSuffix | +30% Increased Attack Speedrare onlyMelee Weapon | 19 |
| of SwiftnessSuffix | +30% Increased Attack Speedrare onlyMelee Weapon | 34 |
| of AlacritySuffix | +20% Increased Attack Speedrare onlyWeapon | 8 |
| of AlacritySuffix | +20% Increased Attack Speedrare onlyWeapon | 25 |
| of AlacritySuffix | +20% Increased Attack Speedrare onlyGloves | 43 |
| of FervorSuffix | +15% Increased Attack SpeedJewel | 39 |
| of ReadinessSuffix | +10% Increased Attack Speedrare onlyWeapon, Gloves | 1 |
| of ReadinessSuffix | +10% Increased Attack Speedrare onlyWeapon | 5 |
| of ReadinessSuffix | +10% Increased Attack Speedrare onlyGloves | 20 |
Source: itemstatcost.txt (item_fasterattackrate) and properties.txt over the property codes of the game's item tables, the runeword lines and skills.txt (build 3.3.93847). Magic affixes are the ones that can spawn; a runeword's line includes what its runes add in that slot. “LoD 1.14d” is the value in classic Diablo II's last patch where it differs (uniques, set items, runewords' own bonuses, runes and gems; from blizzhackers/d2data); a D2R chip marks what 1.14d did not have. “Strongest” ranks items by the top of their roll range. · Report incorrect data