$XRP XRP (Ripple) and Ethereum (ETH) are very different cryptocurrencies in purpose, technology, and philosophy. Here I summarize the main differences:

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1. Purpose and main use

XRP (Ripple):

It was created by Ripple Labs to facilitate fast and cheap international payments between banks and financial institutions. It's more of a tool for cross-border transfers than a smart contract platform.

Ethereum (ETH):

It is a decentralized platform that allows for the creation and execution of smart contracts and decentralized applications (dApps). ETH is the fuel (gas) to execute those operations.

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2. Technology and architecture

XRP:

Does not use mining.

Uses an algorithm called Ripple Protocol Consensus Algorithm (RPCA).

Transactions are faster and cheaper, but the network is more centralized.

Ethereum:

Currently uses Proof of Stake (PoS) (previously Proof of Work).

It is more decentralized than XRP.

Supports thousands of tokens and applications on its blockchain (NFTs, DeFi, etc.).

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3. Centralization

XRP:

It is criticized for being more centralized, as Ripple Labs controls a significant portion of the XRP supply and has great influence over the network.

Ethereum:

It has a broader and more decentralized community, with multiple developers and independent institutions contributing to its evolution.

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4. Speed and costs

XRP:

Transactions in seconds.

Extremely low costs (fractions of a cent).

Ethereum:

Slower and with higher fees (although they have improved with updates like Ethereum 2.0 and Layer 2).

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5. Use cases

XRP:

Remittances, transfers between banks, international payments.

Ethereum:

DeFi, NFTs, DAOs, blockchain games, stablecoins, digital identity, etc.

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In summary:

Feature XRP Ethereum

Main use Fast payments Contracts

Smart

Speed Very fast Reasonable

Costs Low Variable

Mining No No (uses PoS)

Centralization High Low/Medium

Flexibility Limited Very high

If you seek speed for payments, XRP has the advantage. If you seek a development platform and rich ecosystem, Ethereum is more powerful.