Celeron
Intel Celeron is a trademark, of Intel for less powerful CPUs. Celeron CPUs were designed primarily for low-cost home and office computer, are placed on the relatively low power requirements.
- 2.1 overclocking
History
The tradition of low-cost processors
Even before 1998, the first Celeron CPU came to market, Intel had multiple low-cost variants of its current generation of processors for the mass market in the sales program - it is believed that a goal was to have to replace the previous generation of processors faster from the current. This low -cost CPUs regularly disappeared quickly from the market once the new generation was established. A complete concept for operation of the market for the " small purse " but was created only with the marketing for the Celeron.
In 1979, during the times of the 8 -bit computer, Intel brought out a cheaper version of the 8086, the 8088, which takes only 16 had an 8 -bit wide data bus. At that time, the goal was, to stay compatible to the giant at that time 8 -bit market. Through this move, why PC was crowned the 8088 inter alia, to the CPU of the first IBM. A similar approach was also the successor Intel 80186/80188, which played a role, especially for embedded systems and was rarely installed in personal computers (eg Siemens). In 1988, Intel again a less powerful variant of a current processor generation before, derived from 80386 80386SX. He was a full-fledged 80386 with the bus interface of a 80286 and should be the path from 16 - to pave the 32 -bit era. Also in 80486 this game repeated with the cheaper variant 80486SX that differed from the big brother by a defective due mostly deactivated by Intel floating point unit and therefore was sold much cheaper. After that there was no cheap options for a long time until the Celeron CPUs came on the market.
The Intel Celeron processor
Finally, Intel introduced in 1998 before the first Celeron, which was based on the P6 architecture and descended from the Intel Pentium II. However, the first Celeron L2 Cache had to make do, which made him very slowly. The relatively short term pushed Intel by the so-called A- variant, which had a 128- kilobyte small but connected with full-speed L2 cache. Shortly before the turn of the millennium, these processors were very popular with enthusiasts because they had a high overclocking potential and could provide the greatest Pentium II models paroli for a fraction of the price. Later, a descendant of the Intel Pentium III followed that in 2000 on the set up for the Celeron processors Socket 370 moved.
With the introduction of the NetBurst architecture later, a new Celeron was presented based on this same architecture. In particular, the clock rates have been increased here, which also led to an increased heat output of the Celeron processors. As part of the equipment of all microprocessors Intel with a model number were from 2004, new low-cost processors the name Intel Celeron D, where the D for " Desktop" is.
Since the high power consumption of the entire NetBurst architecture through the Prescott core could not be solved and on the other hand, the mobile processors have been very successful in the form of the Pentium M, Intel developed the derived from these mobile processors Core microarchitecture. Since spring 2007, cheap processors with the Intel Celeron names are sold on the basis of this architecture, which have a significantly lowered power consumption with a simultaneous increase in performance compared to the Celeron D.
Behavior of competitors
Also, Intel's main competitor in the x86 market, AMD has taken the marketing concept from Intel. The derived from the Athlon version called Duron has long been the AMD equivalent to Intel's Celeron. In January 2005 AMD changed the name for the low-cost versions of Duron Sempron to the CPU and evaluated the possibility of her performance on her.
Technical
The main feature of a Celeron microprocessor is the smaller (or non-existent in the first models ) L2 cache, often the processor core itself and its front side bus clocked lower. With the development of multi-core processors they were only equipped with multiple cores, as in higher-priced segments twice as many cores were common. In addition, new features are included as adjustments to smaller structure sizes, and new features such as Hyper -Threading or SSE extensions are often many months after their debut in the current Pentium Celeron in the family. Thus the performance of these CPUs is very limited, reduce the lower production costs but also the selling price.
Meanwhile, Intel has shifted because of the strong competition to implement more features in the Celerons. So there are models in which 64 or Intel SpeedStep is integrated. Thus, these models often differ only by lower computing power of the larger models in the same product family.
Many Celerons are not produced separately, but based on the same chips or dies as the faster Pentium or Core models. The defective or "superfluous " cache areas or processor cores are easily disabled, and the CPUs arrive with a lower than specified clock Celeron on the market. So no separate production line needs to be established, and the in chip production always relatively high rejection rate is decreased. It is also known that Intel has already launched production lines for the Celeron, which are then presumably operated with older manufacturing processes, and not quite current manufacturing technology - a standard in the semiconductor manufacturing process.
Overclocking
Many Celeron models can be increased with proper hardware the factory-set clock. A Celeron 347 overclocked in January 2013 of 3.06 GHz on 8398.07 MHz. That was at the time the world record, which is the highest clock speed of an Intel processor. For daily work, this frequency is not suitable.
Models
The following models are or were sold under the name Intel Celeron:
- Intel Celeron (P6 ) 1998-2002
- Intel Celeron ( NetBurst ) 2002-2004
- Intel Celeron D ( NetBurst ) 2004-2007
- Intel Celeron ( Core) 2007-2008
- Intel Celeron Dual- Core since 2008
Naming
Especially in informal American English Celeron is mocking or derogatory replaced by Celery, which means as much as celery. The term " Celeron " comes from Latin and means " quickly, quickly " ( celer, celeris, celere ).
With the introduction of the Pentium M, Intel had the naming of its CPUs easily changed, so that the Celeron mobile processors (formerly Intel Mobile Celeron ) under the name Intel Celeron M ( M for Mobile ) and desktop versions under the name Celeron D (D were sold for desktop ), the M- models are based on the Pentium M technology and the D models on the Pentium - fourth
With the introduction of a processor core based on the Core 2 Duo processors ( Conroe -L) again changed the name of Intel Celeron D Celeron on. These newer processors with Core microarchitecture are therefore not at all with the older models of the NetBurst architecture comparable, but are sold under the same name.