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Pentium 4 [3] [4] is a series of single-core CPUs for desktops, laptops and entry-level servers manufactured by Intel. The processors were shipped from November 20, 2000 until August 8, 2008. [5] [6] All Pentium 4 CPUs are based on the NetBurst microarchitecture, the successor to the P6.
The first CPU to use this architecture was the Willamette-core Pentium 4, released on November 20, 2000 and the first of the Pentium 4 CPUs; all subsequent Pentium 4 and Pentium D variants have also been based on NetBurst.
The Pentium 4 was a seventh-generation CPU from Intel targeted at the consumer and enterprise markets. It is based on the NetBurst microarchitecture. Desktop processors
In computer architecture, a trace cache or execution trace cache is a specialized instruction cache which stores the dynamic stream of instructions known as trace. It helps in increasing the instruction fetch bandwidth and decreasing power consumption (in the case of Intel Pentium 4 ) by storing traces of instructions that have already been ...
Pentium is a series of x86 architecture-compatible microprocessors produced by Intel from 1993 to 2023. The original Pentium was Intel's fifth generation processor, succeeding the i486; Pentium was Intel's flagship processor line for over a decade until the introduction of the Intel Core line in 2006.
Intel followed this approach with the Execution Trace Cache feature in their NetBurst microarchitecture (for Pentium 4 processors) and later in the Decoded Stream Buffer (for Core-branded processors since Sandy Bridge). [25] Transmeta used a completely different method in their Crusoe x86 compatible CPUs.
A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. [1] A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations.
The Pentium 4 can have 126 micro-operations in flight at the same time. [13]: 10 Micro-operations are decoded and stored in an Execution Trace Cache with 12,000 entries, to avoid repeated decoding of the same x86 instructions. [13]: 5 Groups of six micro-operations are packed into a trace line.