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Software · head to head

Teradata vs Cassandra

T

Teradata

Software

Autonomous Knowledge Platform for Enterprise AI

From
On request
Rated
-
Full reviewWebsite
Cassandra logo

Cassandra

Software

Manage massive amounts of data with linear scalability

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Cassandra has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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; Cassandra no support for joins across tables

Where they differ

Only the attributes on which Teradata and Cassandra actually diverge.

Attributes where Teradata and Cassandra differ
AttributeTeradataCassandra
Starting priceOn requestFree
Pricing modelquoteUnknown
Free tierNoYes
PlatformsWebLinux, macOS, Windows, Docker, Kubernetes
FoundedUnknown2008

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 Teradata

Nothing recorded that Cassandra does not also cover.

Only in Cassandra

  • Linear Scalability
  • Fault Tolerance
  • Multi-datacenter Replication
  • Tunable Consistency
  • CQL Query Language
  • Distributed Architecture
  • No Single Point of Failure
  • DataStax

What people use each for

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

Teradata

No use cases recorded yet. See the Teradata review.

Cassandra

  • Real-time applicationsnot Teradata
  • Content managementnot Teradata
  • User profilesnot Teradata
  • Mobile backendsnot Teradata
  • Cachingnot Teradata

Where each one falls short

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

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

Cassandra

  • No support for joins across tables
  • No ACID transactions across multiple rows
  • Data model must be designed around query patterns upfront, making schema evolution difficult
  • Partition key misconfigurations can cause uneven data distribution and hotspots that degrade performance

Pricing, plan by plan

Teradata

On request

No published plan breakdown. See the Teradata review.

Cassandra

Free

No published plan breakdown. See the Cassandra review.

Which should you pick?

Choose Teradata if

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

Teradata review

Choose Cassandra if

  • You need linear scalability.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want fault tolerance.
Cassandra review

Questions people ask

Is Teradata or Cassandra better?
Neither clearly leads. Teradata starts at On request and Cassandra at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Teradata or Cassandra?
Cassandra has a free tier; the other does not. Paid plans start at On request for Teradata and Free for Cassandra.
Does Teradata or Cassandra run on more platforms?
Teradata runs on Web. Cassandra runs on Linux, macOS, Windows, Docker, Kubernetes.
Can I use Cassandra for free?
Yes. Cassandra has a free tier, so you can try it without paying. Teradata starts at On request.
What can Teradata do that Cassandra cannot?
Cassandra covers Linear Scalability, Fault Tolerance, Multi-datacenter Replication, Tunable Consistency.

Answered from the vendors’ own pages

Cassandra: Does Cassandra support joins between tables?

No. Cassandra does not support joins or foreign keys. The data model requires denormalization, meaning data must be duplicated across tables to support different query patterns.

Source
Cassandra: Does Cassandra offer ACID transactions?

No. Cassandra provides only row-level atomicity and isolation, not full ACID transactions across multiple rows or tables. It uses lightweight transactions via Paxos for per-row compare-and-set operations.

Source
Cassandra: What programming languages can connect to Cassandra?

Cassandra supports official drivers for multiple languages including Python, Java, Node.js, and Go, allowing applications to communicate via the native Cassandra protocol.

Source
Cassandra: Can I deploy Cassandra in the cloud?

Yes. Cassandra can run on any cloud platform (AWS, Google Cloud, Azure) via Docker, virtual machines, or managed services like DataStax Astra DB, which provides a fully managed DBaaS option.

Source
Cassandra: Does Cassandra have a free option?

The open source Apache Cassandra is free. DataStax also offers Astra DB with a free tier providing up to 25GB storage and 25 million read/write operations per month.

Source
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