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ClickHouse vs Teradata

ClickHouse logo

ClickHouse

Software

Fast open-source column-oriented database for real-time analytics

From
Free
Rated
-
Full reviewWebsite
T

Teradata

Software

Autonomous Knowledge Platform for Enterprise AI

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only ClickHouse has a free tier, so it costs nothing to try first.
  • Each has a real cost: ClickHouse limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems; Teradata no pricing is disclosed on the site; buyers must contact sales or use a free evaluation program to get a quote, per teradata.com, August 2026

Where they differ

Only the attributes on which ClickHouse and Teradata actually diverge.

Attributes where ClickHouse and Teradata differ
AttributeClickHouseTeradata
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsLinux, macOS, Windows (via Docker)Web
Founded2021Unknown

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ClickHouse

  • Column-oriented Storage
  • Real-time Analytics
  • SQL Support
  • Linear Scalability
  • Data Compression
  • Vectorized Query Execution
  • Approximate Calculations
  • Kafka

Only in Teradata

Nothing recorded that ClickHouse does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

ClickHouse

  • Business intelligencenot Teradata
  • Data warehousingnot Teradata
  • Real-time analyticsnot Teradata
  • Reportingnot Teradata
  • Machine learningnot Teradata

Teradata

No use cases recorded yet. See the Teradata review.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ClickHouse

  • Limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems
  • Requires upfront schema design discipline with MergeTree engine choices and sort/partition keys
  • Experimental vector search support, not production-ready for vector operations
  • Different query syntax from standard SQL requiring migration planning
  • Limited JOIN capabilities compared to traditional relational databases
  • Migration complexity with 2-4 weeks estimated for data type mapping and query translation

Teradata

  • No pricing is disclosed on the site; buyers must contact sales or use a free evaluation program to get a quote, per teradata.com, August 2026

Pricing, plan by plan

ClickHouse

Free

No published plan breakdown. See the ClickHouse review.

Teradata

On request

No published plan breakdown. See the Teradata review.

Which should you pick?

Choose ClickHouse if

  • You need column-oriented storage.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via Docker).
  • You also want real-time analytics.
ClickHouse review

Choose Teradata if

Nothing in the data separates Teradata from ClickHouse on the points above - pick on price and on how each one feels to use.

Teradata review

Questions people ask

Is ClickHouse or Teradata better?
Neither clearly leads. ClickHouse starts at Free and Teradata at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ClickHouse or Teradata?
ClickHouse has a free tier; the other does not. Paid plans start at Free for ClickHouse and On request for Teradata.
Does ClickHouse or Teradata run on more platforms?
ClickHouse runs on Linux, macOS, Windows (via Docker). Teradata runs on Web.
Can I use ClickHouse for free?
Yes. ClickHouse has a free tier, so you can try it without paying. Teradata starts at On request.
What is ClickHouse best used for?
ClickHouse is most often used for business intelligence, data warehousing, real-time analytics, reporting. Of those, business intelligence and data warehousing are not what Teradata is typically brought in for.
What can ClickHouse do that Teradata cannot?
ClickHouse covers Column-oriented Storage, Real-time Analytics, SQL Support, Linear Scalability.

Answered from the vendors’ own pages

ClickHouse: What is ClickHouse best used for?

ClickHouse is optimized for analytical workloads on large datasets. It excels at fast aggregations and queries, being 10-100x faster than PostgreSQL on large aggregations.

Source
ClickHouse: Does ClickHouse support transactions?

ClickHouse has limited transaction support and expensive UPDATE/DELETE operations. It is not suitable for transactional workloads requiring strict ACID guarantees.

Source
ClickHouse: How does ClickHouse compare to PostgreSQL?

ClickHouse is 10-100x faster for analytics but PostgreSQL is better for transactional workloads. Many teams use both: PostgreSQL for writes via MaterializedPostgreSQL replication to ClickHouse for analytics.

Source
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Related pages

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