# SIMD Vector Types Work with fixed-width vectors of fixed-width numeric types of different sizes. ## Topics ### SIMD Vectors [`SIMD2`](/documentation/Swift/SIMD2) A vector of two scalar values. [`SIMD3`](/documentation/Swift/SIMD3) A vector of three scalar values. [`SIMD4`](/documentation/Swift/SIMD4) A vector of four scalar values. [`SIMD8`](/documentation/Swift/SIMD8) A vector of eight scalar values. [`SIMD16`](/documentation/Swift/SIMD16) A vector of 16 scalar values. [`SIMD32`](/documentation/Swift/SIMD32) A vector of 32 scalar values. [`SIMD64`](/documentation/Swift/SIMD64) A vector of 64 scalar values. ### Supporting Types [`SIMD`](/documentation/Swift/SIMD) A SIMD vector of a fixed number of elements. [`SIMDScalar`](/documentation/Swift/SIMDScalar) A type that can be used as an element in a SIMD vector. [`SIMDStorage`](/documentation/Swift/SIMDStorage) A type that can function as storage for a SIMD vector type. [`SIMDMask`](/documentation/Swift/SIMDMask) ### Supporting Functions [`all(_:)`](/documentation/Swift/all(_:)) True if every lane of mask is true. [`any(_:)`](/documentation/Swift/any(_:)) True if any lane of mask is true. [`pointwiseMax(_:_:)`](/documentation/Swift/pointwiseMax(_:_:)-29hn2) The lanewise maximum of two vectors. [`pointwiseMax(_:_:)`](/documentation/Swift/pointwiseMax(_:_:)-2k6er) The lanewise maximum of two vectors. [`pointwiseMin(_:_:)`](/documentation/Swift/pointwiseMin(_:_:)-39txi) The lanewise minimum of two vectors. [`pointwiseMin(_:_:)`](/documentation/Swift/pointwiseMin(_:_:)-8v95p) The lanewise minimum of two vectors. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)