> For the complete documentation index, see [llms.txt](https://docs.tetreum.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tetreum.com/network/key-features/speed.md).

# Speed

Tetreum attributes its speed profile to deterministic block production under its PoA model.

## Throughput model in the source

The whitepaper defines throughput using the following variables:

* `Bₜ` = average block time
* `Tᵦ` = average transactions per block
* `TPS` = transactions per second

It then presents:

```
TPS = Tᵦ / Bₜ
```

With the example:

```
Tᵦ = 250
Bₜ = 5
TPS = 50 tx/sec
```

## Finality characteristics

* Block time: \~5 seconds
* Finality: deterministic, single-confirmation model
* Intended fit: real-time DeFi, gaming, and instant payment experiences


---

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