# How much do amd64 microarchitecture levels help in Go?

DevFeed: [How much do amd64 microarchitecture levels help in Go?](<https://devfeed.tech/articles/how-much-do-amd64-microarchitecture-levels-help-in-go-29410.md>)

Original publisher: [Read original article](<https://lemire.me/blog/2026/06/06/how-much-do-amd64-microarchitecture-levels-help-in-go/>)

Author: Daniel Lemire

Published: 2026-06-06T20:25:19Z

Content type: article

Language: en

Sources: [Daniel Lemire](<https://devfeed.tech/sources/daniel-lemire.md>)

Topics: [Go Language](<https://devfeed.tech/topics/go-language.md>), [Benchmark](<https://devfeed.tech/topics/benchmark.md>), [cpu](<https://devfeed.tech/topics/cpu.md>), [Data structures](<https://devfeed.tech/topics/data-structures.md>), [toolchain](<https://devfeed.tech/topics/toolchain.md>), [intel](<https://devfeed.tech/topics/intel.md>)

Tags: [avx](<https://devfeed.tech/tags/avx.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [data-structure](<https://devfeed.tech/tags/data-structure.md>), [go](<https://devfeed.tech/tags/go.md>), [intel](<https://devfeed.tech/tags/intel.md>), [performance](<https://devfeed.tech/tags/performance.md>), [toolchain](<https://devfeed.tech/tags/toolchain.md>)

## AI overview

This article examines how amd64 microarchitecture levels affect Go program performance. It explains the instruction-set levels and reports a benchmark methodology using the Roaring Bitmaps library on an Intel Xeon Gold 6548N with Go 1.26.2 and Roaring v2.18.2. The supplied text does not include the benchmark results.

## Source excerpt

Our 64-bit Intel and AMD processors have evolved over decades. When you compile a Go program for a 64-bit Intel or AMD processor, the compiler targets, by default, a nearly 20-year-old instruction set. The binary that comes out runs on essentially any x64 chip, but it also leaves on the table every instruction that was ... Continue reading How much do amd64 microarchitecture levels help in Go?