hyperthreading
(1) A high-performance computing architecture that simulates some degree of overlap in executing two or more independent sets of instructions. See
Hyper-Threading.
(2) (Hyper-Threading) A feature of certain Pentium 4 chips that makes one physical CPU appear as two logical CPUs. It uses additional registers to overlap two instruction streams in order to achieve an approximate 30% gain in performance. Multithreaded applications take advantage of the Hyper-Threaded hardware as they would on any dual-processor system; however, the performance gain cannot equal that of true dual-processor CPUs.
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| Hyper-Threading Vs. Standard Modes |
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| Applications must be multithreaded in order to take advantage of Hyper-Threading whether in single-core or dual-core machines. |
