Turborepo 2.9 cut create-turbo startup from 676ms to 132ms; this deep dive compares Nx 22 on caching, CI, polyglot scale, and DX. Full breakdown.
Startup speed and everyday DX
Turborepo 2.9 cut create-turbo startup from 676ms to 132ms. That kind of change is not a vanity metric: it is the difference between a monorepo tool that feels invisible and one that adds friction every time you scaffold, run, or wait for the CLI to become ready. For teams evaluating monorepo tooling in 2026, first-run and CLI responsiveness still set the tone for the whole developer experience, even when remote caching and CI are the long-term cost drivers.
Nx 22 approaches DX from a different angle. Instead of competing only on how fast a blank project boots, it invests in project graph awareness, generators, and task orchestration that stay useful as the repo grows. If your pain is “I open the repo and wait,” Turborepo’s startup work matters immediately. If your pain is “I do not know which packages are affected, or how to scaffold a consistent library,” Nx’s tooling surface is usually the stronger daily lever.
Caching and CI: where the real time goes
Both tools treat caching as the core of monorepo performance. Local task caching avoids re-running work that has not changed. Remote caching extends that idea to CI and across machines, so a green pipeline for one branch can save minutes for the next. The practical difference is less about whether caching exists and more about how much configuration and discipline you need to keep cache keys correct when inputs, env vars, and outputs drift.
On CI, the useful comparison is pipeline shape, not brand loyalty. Turborepo tends to feel lightest when you already have a package graph that maps cleanly to scripts and you want a thin orchestration layer over existing package managers. Nx 22 tends to pay off when you want affected-only builds, explicit project boundaries, and CI that can prune large graphs without ad hoc scripting. Measure your real jobs: install time, typecheck, test, and deploy steps. Cache hit rate only matters if the tasks you cache are the ones that dominate the wall clock.
Polyglot scale and ownership boundaries
Monorepos rarely stay pure JavaScript. Backend services, mobile apps, infra packages, and shared contracts often share one tree. Polyglot scale is where abstraction choices show up. You need a clear project model, predictable task names, and a way to say “this change only touches these owners.” Without that, remote cache wins get erased by “run everything because we are not sure.”
- Prefer explicit project boundaries over implicit folder conventions once more than one language or deploy target is in the tree.
- Keep task inputs and outputs declared tightly enough that cache keys stay honest across CI runners.
- Treat ownership maps (CODEOWNERS, tags, or project metadata) as part of the monorepo design, not a later process add-on.
Nx 22 is typically stronger when the repo is a product platform with many project types and generators that enforce structure. Turborepo is often enough when the monorepo is mostly JS/TS packages with a simple task graph and you want minimal ceremony. Neither choice removes the need for good package boundaries; both amplify whatever structure you already have.
How to choose without chasing the wrong benchmark
Use the create-turbo startup improvement as a signal that Turborepo is still optimizing for lean CLI paths, not as a full substitute for your own benchmark suite. Run both tools against a realistic slice of your repo: cold install, warm cache, partial change that should affect a small set of projects, and a full release path. Capture wall time and cache hit rates for the tasks your team actually waits on.
Choose Turborepo when you want a thin, fast task runner and your monorepo is still mostly a package graph with conventional scripts. Choose Nx 22 when you need deeper project graph features, consistent scaffolding, and CI that can reason about large, mixed-language workspaces. The better tool is the one that reduces the time between a local change and a trustworthy CI signal—not the one with the flashiest single-number demo.