ClearSpeed Technology Ltd was a semiconductor company, formed in 2002 to develop enhanced SIMD processors for use in high-performance computing and embedded systems.

[1] Its current 192-core CSX700 processor was released in 2008,[2] but a lack of sales has forced the company to downsize[3] and it has since delisted from the London stock exchange.

[6] It currently sells its CSX700 processor on a PCI Express expansion card with 2 GB of memory, called the Advance e710.

The card is supplied with the ClearSpeed Software Development Kit and application libraries.

[7] Related multi-core architectures include Ambric, PicoChip, Cell BE, Texas Memory Systems, and GPGPU stream processors such as AMD FireStream and Nvidia Tesla.