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ERC721.md

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ERC721 Benchmark

Benchmarks for implementations of the ERC20 standard.

The most popular way of implementing ERC721 is by having sequential ids for each token, so if a collection has 10000 tokens, the ids of each token are in the range 1~10000. Some of the latest implementations focus on making mint cheaper at the cost of an expensive transfer, this bechmark highlights that.

We'll be comparing the following implementations:

Methods TODO

  • deploy
  • mint (not in the specification, but common)
  • safeMint (not in the specification, but common)
  • burn (not in the specification, but common)
  • balanceOf
  • ownerOf
  • transferFrom
  • safeTransferFrom
  • approve
  • setApprovalForAll
  • getApproved
  • isApprovedForAll

Deployment

How much gas to deploy the contract as is?

Implementation --
ERC721A 956503
ERC721B 969269
ERC721K 1062527
OpenZeppelin Consecutive 1123587
OpenZeppelin Enumerable 1173288
OpenZeppelin 967662
Solady 640668
Solmate 910145

Deployment with ERC2309 minting

How much gas to deploy the ERC2309 compliant contracts when minting N tokens in the constructor?

Implementation 5 10 50 100 200 300
ERC721A 832802 832801 832824 832834 832868 832846
OpenZeppelin Consecutive 1074812 1074811 1074834 1074844 1074878 1074856

Write methods

mint

How much gas to mint N tokens?

Implementation 1 2 3 4 5 10 50 100
ERC721A 57009 59007 60995 62993 64883 74802 153398 251741
ERC721B 52140 54377 56604 58841 60970 72084 160240 270533
ERC721K 57279 59305 61321 63347 65265 75324 155040 254783
OpenZeppelin Consecutive 79517 105510 131493 157486 183371 313265 1351661 2649754
OpenZeppelin Enumerable 146258 260848 375428 490018 604500 1177379 5759655 11487598
OpenZeppelin 74572 99620 124658 149706 174646 299815 1300411 2551254
Solady 74127 98733 123329 147935 172433 295392 1278308 2507051
Solmate 74359 99194 124019 148854 173581 297685 1289761 2529954

safeMint

How much gas to safeMint N tokens?

Implementation 1 2 3 4 5 10 50 100
ERC721A 59812 61711 63721 65697 67697 77461 156102 254369
ERC721B 55141 57279 59528 61743 63982 74941 163142 273359
ERC721K 60023 61950 63988 65992 68020 77924 157685 257352
OpenZeppelin Consecutive 82453 108637 134932 161193 187478 318667 1368713 2681246
OpenZeppelin Enumerable 149083 263864 378756 493614 608496 1182670 5776596 11518979
OpenZeppelin 77508 102747 128097 153413 178753 305217 1317463 2582746
Solady 77001 101736 126582 151394 176230 300174 1292260 2532343
Solmate 77191 102116 127152 152154 177180 302074 1301755 2551322

burn

How much gas to burn the nth token?

Implementation 1 10 50 100
ERC721A 69586 106655 195194 305849
ERC721B 8238 8281 8260 8215
ERC721K 72586 111121 206266 325257
OpenZeppelin Consecutive 21167 21210 21189 21144
OpenZeppelin Enumerable 47549 52064 52047 52011
OpenZeppelin 18518 18561 18540 18495
Solady 18133 18176 18155 18110
Solmate 18144 18187 18166 18121

transferFrom

How much gas to transfer the nth token id if you own all tokens from 1 to 100?

To a wallet that already owns a token from the collection

Implementation 1 10 50 100
ERC721A 52973 90021 178582 289260
ERC721B 295149 273904 179385 44113
ERC721K 55975 94489 189656 308670
OpenZeppelin Consecutive 29243 29265 29266 29244
OpenZeppelin Enumerable 80432 68154 68155 68133
OpenZeppelin 28930 28952 28953 28931
Solady 27955 27977 27978 27956
Solmate 28373 28395 28396 28374

To a wallet that owns no token from the collection

Implementation 1 10 50 100
ERC721A 70051 107099 195660 306382
ERC721B 295127 273882 179363 44135
ERC721K 73053 111567 206734 325792
OpenZeppelin Consecutive 46321 46343 46344 46366
OpenZeppelin Enumerable 77610 80432 80433 80455
OpenZeppelin 46008 46030 46031 46053
Solady 45033 45055 45056 45078
Solmate 45451 45473 45474 45496

safeTransferFrom

How much gas to transfer the nth token id if you own all tokens from 1 to 100?

To a wallet that already owns a token from the collection

Implementation 1 10 50 100
ERC721A 55776 92825 181340 292041
ERC721B 298003 276759 182194 46945
ERC721K 58762 97277 192398 311436
OpenZeppelin Consecutive 32090 32113 32068 32069
OpenZeppelin Enumerable 83301 71024 70979 70980
OpenZeppelin 31777 31800 31755 31756
Solady 30658 30681 30636 30637
Solmate 31111 31134 31089 31090

To a wallet that owns no token from the collection

Implementation 1 10 50 100
ERC721A 72854 109903 198485 309162
ERC721B 297981 276737 182239 46966
ERC721K 75840 114355 209543 328557
OpenZeppelin Consecutive 49168 49191 49213 49190
OpenZeppelin Enumerable 80479 83302 83324 83301
OpenZeppelin 48855 48878 48900 48877
Solady 47736 47759 47781 47758
Solmate 48189 48212 48234 48211

setApprovalForAll

How much gas for setApprovalForAll?

Implementation --
ERC721A 32550
ERC721B 32590
ERC721K 32590
OpenZeppelin Consecutive 32602
OpenZeppelin Enumerable 32624
OpenZeppelin 32602
Solady 32391
Solmate 32528

approve

How much gas to approve the nth token id if you own all tokens from 1 to 100?

Implementation 1 10 50 100
ERC721A 37089 56992 145530 256253
ERC721B 271508 250218 155676 37549
ERC721K 37494 58863 154007 273066
OpenZeppelin Consecutive 35288 35265 35243 35266
OpenZeppelin Enumerable 35163 35140 35118 35141
OpenZeppelin 35163 35140 35118 35141
Solady 34768 34745 34723 34746
Solmate 34829 34806 34784 34807

View methods

balanceOf

How much gas to run balanceOf in an account with N tokens.

Implementation 1 10 50 100
ERC721A 7868 7802 7847 7814
ERC721B 2738097 2738166 2738811 2739528
ERC721K 7868 7802 7847 7814
OpenZeppelin Consecutive 7840 7774 7819 7786
OpenZeppelin Enumerable 7884 7818 7863 7830
OpenZeppelin 7840 7774 7819 7786
Solady 7815 7749 7794 7761
Solmate 7840 7774 7819 7786

ownerOf

How much gas to find the owner of a token when the owner owns 100 tokens and the token to find is the nth token.

Implementation 1 10 50 100
ERC721A 9965 29936 118495 229141
ERC721B 244297 223075 128554 10350
ERC721K 10219 31656 126821 245804
OpenZeppelin Consecutive 7887 7932 7931 7877
OpenZeppelin Enumerable 7806 7851 7850 7796
OpenZeppelin 7762 7807 7806 7752
Solady 7732 7777 7776 7722
Solmate 7720 7765 7764 7710

getApproved

How much gas to find the approved address of the nth token when the onwer owns 100 tokens and there are no approved addresses.

Implementation 1 10 50 100
ERC721A 10010 29913 118495 229163
ERC721B 244342 223052 128554 10372
ERC721K 10264 31633 126821 245826
OpenZeppelin Consecutive 7932 7909 7931 7899
OpenZeppelin Enumerable 7851 7828 7850 7818
OpenZeppelin 7807 7784 7806 7774
Solady 7777 7754 7776 7744
Solmate 7765 7742 7764 7732

isApprovedForAll

How much gas to check if an address is allowed to control another's nfts.

Implementation --
ERC721A 8039
ERC721B 8051
ERC721K 8006
OpenZeppelin Consecutive 8029
OpenZeppelin Enumerable 8051
OpenZeppelin 8029
Solady 7906
Solmate 7984