Add D1 vs Hyperdrive

Author: thomasgauvin

src/content/docs/workers/platform/storage-options.mdx

@@ -209,4 +209,15 @@ The new beta version of Durable Objects is available where each Durable Object h
 
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+## D1 vs Hyperdrive
+
+D1 is a standalone, serverless database that provides a SQL API to store and access your relational data. 
+
+Hyperdrive is a service that improves the performance of your existing, regional PostgreSQL databases, optimizing them for global data access from Workers.
+
+If you are building a new project on Workers or are considering migrating your data, use D1.
+
+If you are building a Workers project with an existing PostgreSQL database, use Hyperdrive.
+
+D1 does not need to be used with Hyperdrive because it does not have slow connection setups which would benefit from Hyperdrive's connection pooling. D1 data can also be cached within Workers using the [Cache API](/workers/runtime-apis/cache/).