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A single-core processor is a microprocessor with a single CPU on its die. [1] It performs the fetch-decode-execute cycle one at a time, as it only runs on one thread. A computer using a single core CPU is generally slower than a multi-core system.
This range of capabilities, specifically in this case the number of CPUs, means that the SPEC INT benchmark is usually run on only a single CPU, even if the system has many CPUs. If a single CPU has multiple cores, only a single core is used; hyper-threading is also typically disabled,
Taken together, these practices are called bench-marketing. Ideally benchmarks should only substitute for real applications if the application is unavailable, or too difficult or costly to port to a specific processor or computer system. If performance is critical, the only benchmark that matters is the target environment's application suite.
Geekbench began as a benchmark for Mac OS X and Windows, [3] and is now a cross-platform benchmark that supports macOS, Windows, Linux, Android and iOS. [4] In version 4, Geekbench started measuring GPU performance in areas such as image processing and computer vision. [5] In version 5, Geekbench dropped support for IA-32. [6]
A process with two threads of execution, running on a single processor . In computer architecture, multithreading is the ability of a central processing unit (CPU) (or a single core in a multi-core processor) to provide multiple threads of execution.
The performance of a single-core Atom is about half that of a Pentium M of the same clock rate. For example, the Atom N270 (1.60 GHz) found in many netbooks such as the Eee PC can deliver around 3300 MIPS and 2.1 GFLOPS in standard benchmarks, [ 29 ] compared to 7400 MIPS and 3.9 GFLOPS for the similarly clocked (1.72 GHz) Pentium M 740.
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Nevertheless, the LINPACK benchmark performance can provide a good correction over the peak performance provided by the manufacturer. The peak performance is the maximal theoretical performance a computer can achieve, calculated as the machine's frequency, in cycles per second, times the number of operations per cycle it can perform.