--- title: Every Go release since 2013, benchmarked: go1.2 to go1.27 description: A detailed benchmark study measures the same Benchmarks Game programs across every Go release from 1.2 to 1.27 on identical hardware. Go 1.27 is found to be... canonical: https://daily.dev/posts/kutlcb6z5 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Every Go release since 2013, benchmarked: go1.2 to go1.27 | daily.dev og:description: A detailed benchmark study measures the same Benchmarks Game programs across every Go release from 1.2 to 1.27 on identical hardware. Go 1.27 is found to be... og:url: https://daily.dev/posts/kutlcb6z5 og:image: https://api.daily.dev/og/posts/kUtlcB6z5.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Every Go release since 2013, benchmarked: go1.2 to go1.27 **[Go Developers](https://daily.dev/sources/golangnuts)** · [@func25](https://daily.dev/func25) · 14 upvotes · 0 comments ## Summary A detailed benchmark study measures the same Benchmarks Game programs across every Go release from 1.2 to 1.27 on identical hardware. Go 1.27 is found to be 11.5% faster than Go 1.23 and roughly 41% faster than Go 1.2, with most recent gains coming from runtime changes (Swiss-table maps, math/big, cgo, GC, memory allocator) rather than numeric code speed, which hasn't changed since Go 1.7's SSA compiler backend. Using an energy model, Go 1.27 is estimated to use 11.5% less energy than Go 1.23. The study also revisits a 2017 energy-efficiency paper, finding Go's energy use relative to C has improved from 3.23x to roughly 2.25x, with a custom pre-allocated binary-trees variant reaching ~1.57x and running about 10x faster than the standard version. Remaining gaps versus C are attributed mostly to hand-written SIMD instructions in C competitors rather than language overhead. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Go 1.27 interactive tour](https://daily.dev/posts/go-1-27-interactive-tour-dvxr0krfs) · Lobsters · 11 upvotes · 0 comments - [Issue \#613: An interactive tour of Go 1.27 — Go Weekly](https://daily.dev/posts/issue-613-an-interactive-tour-of-go-1-27-go-weekly-fygkcxzym) · Golang Weekly · 6 upvotes · 1 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#golang](https://daily.dev/tags/golang), [#compiler](https://daily.dev/tags/compiler) [View this post on daily.dev](https://daily.dev/posts/kutlcb6z5) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/kutlcb6z5","headline":"Every Go release since 2013, benchmarked: go1.2 to go1.27","text":"Shared: Every Go release since 2013, benchmarked: go1.2 to go1.27","url":"https://daily.dev/posts/kutlcb6z5","datePublished":"2026-10-13T01:00:00.202Z","dateModified":"2026-10-13T01:00:01.392Z","author":{"@type":"Person","name":"Phuong Le","url":"https://daily.dev/func25","image":"https://media.daily.dev/image/upload/s--HbVBqLGd--/f_auto,q_auto/v1697862633/avatars/avatar_s1rxG2e5sEfVSY1wCzdr8","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":8725}},"image":"https://media.daily.dev/image/upload/s--P4t4XyoV--/f_auto/v1722860399/public/Placeholder%2001","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":13},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/Omok00fZY"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/golangnuts","name":"Go Developers"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Go Developers","item":"https://daily.dev/squads/golangnuts"},{"@type":"ListItem","position":3,"name":"Every Go release since 2013, benchmarked: go1.2 to go1.27"}]} ```