Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Coherent Accelerator Processor Interface
open-in-new
<p>Coherent Accelerator Processor Interface (CAPI), is a high-speed processor expansion bus standard for use in large <a href="/facts/Data_center/DS5wJY41">data center</a> computers, initially designed to be layered on top of <a href="/facts/PCI_Express/ADhsLCUK">PCI Express</a>, for directly connecting <a href="/facts/Central_processing_unit/Jxp1bqMV">central processing units</a> (CPUs) to external accelerators like <a href="/facts/Graphics_processing_unit/PTK1RQVp">graphics processing units</a> (GPUs), <a href="/facts/Application-specific_integrated_circuit/YGUXpX50">ASICs</a>, <a href="/facts/Field-programmable_gate_array/M8LSGcAU">FPGAs</a> or fast storage. It offers low latency, high speed, direct memory access connectivity between devices of different <a href="/facts/Instruction_set_architecture/8p8vwUeE">instruction set architectures</a>. </p>