The correlation between Cost and gpm is 0.64. The more Cost, the more gpm, and vice versa. But some values are higher than expected, some are lower. Efficiency is a difference between the value of gpm depending on Cost (blue dots) with respect to the expected value (red line).
| Efficiency | |
|---|---|
| Boots Of Travel 2 | 160.1929 |
| Swift Blink | 126.3143 |
| Butterfly | 118.9491 |
| Bottle | 107.2740 |
| Power Treads | 106.6692 |
| Satanic | 104.2935 |
| Eye Of Skadi | 98.3118 |
| Wraith Band | 98.1214 |
| Boots Of Travel | 93.1441 |
| Mask Of Madness | 86.5221 |
| Manta Style | 84.5491 |
| Nullifier | 82.4613 |
| Battle Fury | 81.5763 |
| Monkey King Bar | 79.5491 |
| Hand Of Midas | 71.8339 |
| Phase Boots | 70.3611 |
| Falcon Blade | 69.5795 |
| Dragon Lance | 66.0186 |
| Orb Of Corrosion | 65.5379 |
| Skull Basher | 64.9523 |
| Disperser | 60.6456 |
| Sange And Yasha | 60.2579 |
| Moon Shard | 58.8966 |
| Soul Ring | 58.7441 |
| Mjollnir | 58.6287 |
| Daedalus | 58.5171 |
| Abyssal Blade | 57.8267 |
| Radiance | 54.5235 |
| Diffusal Blade | 54.0041 |
| Desolator | 50.4647 |
| Aghanim'S Shard | 46.2792 |
| Mage Slayer | 44.1841 |
| Assault Cuirass | 40.7408 |
| Armlet Of Mordiggian | 38.7407 |
| Black King Bar | 37.9316 |
| Bracer | 36.9514 |
| Crystalys | 35.6514 |
| Hurricane Pike | 32.8267 |
| Linken'S Sphere | 32.7591 |
| Harpoon | 32.7229 |
| Blade Mail | 30.3972 |
| Revenant'S Brooch | 29.6049 |
| Kaya And Sange | 26.3479 |
| Aghanim'S Blessing | 25.8915 |
| Witch Blade | 22.3008 |
| Bloodstone | 21.7217 |
| Silver Edge | 21.4718 |
| Bloodthorn | 19.2822 |
| Echo Sabre | 18.2441 |
| Magic Wand | 17.9590 |
| Shiva'S Guard | 17.7414 |
| Heart Of Tarrasque | 12.3536 |
| Overwhelming Blink | 8.8543 |
| Null Talisman | 5.5814 |
| Vanguard | 4.3499 |
| Eternal Shroud | 2.7068 |
| Maelstrom | -0.4876 |
| Blink Dagger | -1.8658 |
| Yasha And Kaya | -2.7521 |
| Octarine Core | -6.2409 |
| Scythe Of Vyse | -12.6489 |
| Aghanim'S Scepter | -16.5758 |
| Orchid Malevolence | -21.6311 |
| Heaven'S Halberd | -23.9327 |
| Arcane Blink | -25.6057 |
| Refresher Orb | -25.7364 |
| Crimson Guard | -25.9189 |
| Phylactery | -29.5597 |
| Meteor Hammer | -30.0476 |
| Gleipnir | -32.0136 |
| Shadow Blade | -41.6028 |
| Helm Of The Dominator | -46.1343 |
| Pipe Of Insight | -51.7913 |
| Arcane Boots | -56.0178 |
| Veil Of Discord | -56.7776 |
| Ethereal Blade | -58.4709 |
| Vladmir'S Offering | -59.4024 |
| Solar Crest | -60.4751 |
| Lotus Orb | -61.4010 |
| Medallion Of Courage | -64.2038 |
| Tranquil Boots | -66.5121 |
| Wind Waker | -67.4286 |
| Eul'S Scepter Of Divinity | -67.4314 |
| Urn Of Shadows | -69.8327 |
| Aether Lens | -80.2752 |
| Dagon | -80.5258 |
| Aeon Disk | -84.0528 |
| Pavise | -85.6308 |
| Drum Of Endurance | -91.1101 |
| Spirit Vessel | -95.9705 |
| Rod Of Atos | -97.8249 |
| Force Staff | -98.7361 |
| Helm Of The Overlord | -99.1286 |
| Glimmer Cape | -104.9451 |
| Boots Of Bearing | -117.0085 |
| Dagon (2) | -117.7534 |
| Mekansm | -119.9179 |
| Holy Locket | -123.0376 |
| Guardian Greaves | -136.5665 |
| Dagon (3) | -142.7329 |
| Dagon (5) | -146.8176 |
| Dagon (4) | -167.7843 |