In 1998, AMD The low price policy of "" worked, and successfully invaded the low price processor market with a price of 1/3 of that of Intel processors. At that time, basic computers (NT $: 30000~25000) were popular, plus the integer of AMD's K6-2 processor itself Computing power Excellent, very suitable for the basic needs of ordinary families. Major manufacturers have launched low-cost computers on the Socket-7 platform. During this period, in order to completely dominate the trend of the next generation of processors, Intel announced that it would abandon the Socket-7 architecture, jointly released a new generation of architecture - Slot-1 with National Semiconductor of the United States, and launched a processor with a new architecture- Pentium II Although this processor has successfully entered the mainstream market, the expensive Pentium II, together with the expensive mother board , making Intel completely lose its share of the low-cost market. In order to invade this market, it is necessary to launch a new low-cost processor into the battlefield, but the initial stage of investment required to design a new processor research and development costs It is quite high, so Intel plans to start with the original Pentium II processor. In March 1998, Intel officially launched a new processor - Celeron. The Celeron processor that was originally launched maintains the same architecture as the Pentium II (Desynchrons), uses Slot-1, and its core architecture is the same as the Pentium II, with MMX Multimedia instruction set , but the two L2 caches originally on the Pentium II are canceled. Intel Remove L2 cache, except cost reduction In addition, the main purpose is to differ from the mainstream Pentium II in terms of performance. In addition to L2 cache working frequency (Front Side BUS), which is also used by Intel to distinguish between mainstream and low-cost processors watershed : Intel Pentium II processor fsb Is 100 MHz (The earliest is the Pentium II 350), while the low price Celeron maintains the traditional 66 MHz. Celeron's core architecture is exactly the same as that of the Pentium II, except for the lack of L2 cache. What is the impact on overall performance? Look at 2019 P3 C Everyone's psychology should have a bottom. For example, the core Temporal pulse With the same 500 MHz P3 processor and the same external frequency, the performance of the P3 500E cached by the On Die 256K full speed L2 is better than that of the P3 500 Half speed 512K L2 cache is coming fast L2 Cache Speed, which has such a great impact (ATC and ASB Not to mention), let alone 'no' L2 cache. When Cache less Celeron low-cost processors were just launched, they were targeted at low-cost computers. Due to the Slot-1 architecture, only 440 LX and 440BX motherboard chipsets could be matched at that time. However, this type of motherboard was mainly matched with Pentium II, and it was difficult to lower the price. With Cache less Celeron processors, The performance is poor, so Intel's Celeron 266/300 MHz, which was first launched, has always been spurned by everyone in terms of efficiency.
On August 24, 1998, people who love hardware like the author will never forget that Intel launched the L2 Cache The Celeron A processor is the Celeron 300A, which will be praised by many DIYers in the future. Celeron 300A, in a sense, is Intel's second generation Celeron processor. The first generation Celeron processor only has 266MHz and 300MHz versions. The first generation Celeron processor does not have any L2 Cache Although the cost is effectively reduced, the performance is not satisfactory. In order to make up for the lack of performance, Intel finally launched the Celeron 300A, 333 and 366 with the Mendocino core for the first time. Classic, born from then on. The classic of Celeron 300A is not only because of its Overfrequency (Most Celeron 300A can be easily overclocked to 550MHZ), and the overclocking of Celeron 300A has almost created an industry chain specially built for it The adapter card ... How many of these products are produced for Celeron 300A. At one time, Newspapers and magazines The network media are discussing the overclocking mode, skills, matching motherboard, memory, etc. of the Celeron 300A. The era of overclocking of DIY has officially arrived. Among Intel's older generation PII/PIII series processors, other products have long faded out of the market, while Celeron 3 is still lurking in the entry-level market with its excellent cost performance ratio. Cylon 3, also known as PIII Tualatin（ Tualatin ）The core degraded product also adopts the most advanced 0.13 μ m manufacturing process , which CPU L2 cache is 256K, L1 Data cache Both the cache and code cache are 16K, and the cache of Celeron 4 is even higher, so its performance is not inferior to Celeron 4. Plus, the low-frequency Cylon 3 is good Overfrequency Performance, it is not surprising that Tualatin Celeron is the strongest and most valuable product in Celeron series to maintain its life. For those old users who are still using the I815 series, VIA694 series and even the BX motherboard (VIA693 and Intel ZX) series, the Celeron 3 can extend the youth of their old computers for a longer time. For this kind of old motherboard, if the motherboard CPU voltage does not support 1.5V, just use Socket 370 Transfer to Socket 370（ Tualatin ）Or Solt1 to Socket 370 (Figure Latin) The adapter card The purpose of upgrading can be achieved, and the price of this kind of adapter card supporting Celeron 3's jumper regulated voltage is only about ten or twenty yuan. As we all know, the low frequency products 1.0 and 1.1G in the third generation of Celeron family Overclocking capability Very strong, many of these can easily reach 1.3G (133MHz fsb ）So you can choose this kind of product. The overclocking capacity of Celeron 3 above 1.2G is relatively weak, but if low-frequency products are not available in the local market, it is also good to directly spend tens of yuan on high-frequency products. In this way, we can extend the life of Aiji for another year or two. 
Cylon IV In addition, Northwood Core The Cylon 4 has a good Overfrequency Performance, for example, many Celeron 4 1.8G CPU external frequency 100MHz (1.8G dominant frequency) can exceed 166MHz (3G dominant frequency), so before the appearance of Celeron D, its selectivity was very high. Cylon 4 is hard to find in the market, but it is second-hand or Flea market Still a favorite. Price focused users prefer AMD's low frequency Flashing dragon , which is cheaper; Users who focus on cost performance are more likely to prefer Celeron D. In any case, it is not more expensive than tens of yuan, but the main frequency is higher, and its performance is also better than Celeron 4. But Cylon 4, especially Northwood Core The situation of Saiyang 4 is very embarrassing. It's a pity to give up. Maybe only the users who purchase the motherboard that does not support Celeron D choose it. 30 years Hedong 30 years Hexi Who would have thought that Intel's cost-effective Celeron products now lead the fashion before Celeron D was launched. Celeron D adopts Intel's Prescott The core (P4E) is the shielding part of the P4E secondary cache product, which uses the latest 90nm process. Celeron D only has 133MHz and 533MHz on CPU external frequency Front end bus In terms of L2 cache, Celeron D is only a quarter of P4E, that is, 256K full speed L2 cache. As long as the new version of BIOS supports, the Celeron D processor can be used on the motherboard (such as I845D, P4X266A, etc.) that can be used on Celeron 4. minimum price The quotation of Celeron D 315 2.26G (bulk) is only 535 yuan (Celeron D320 bulk, 580 yuan), which not only makes AMD Athlon XP The product is dull, and it almost directly announced the death of Intel's P4A/P4B two series Pentium 4 processors, because they are more like embroidery pillows in front of Celeron D. Of course, Celeron D has attracted extensive attention from DIY users not only because of its cost performance, but also because of its good Overfrequency Performance. It is widely spread on the Internet that "as long as you choose a motherboard that is slightly advantageous for overclocking (for example, it supports adjustment AGP / PCI Many frequencies frequency division And CPU, memory, AGP voltage motherboard products), D0 version of Celeron D processor, the range of performance improvement is large, has been more suitable for overclocking players to choose; The E0 version uses the Intel Prescott series Processor core , is called the extreme of overclocking. When purchasing E0 Celeron D, it can make 2.4 GHz The Celeron D 320 can easily reach 3.6-4GHz Overfrequency The performance is no worse than the P4 processor that costs thousands of yuan. " Such overclocking performance is certainly a good thing for consumers, but when Intel has such a sharp weapon, its low price makes its P4 processor popular in DIY Asia The market is almost out of favor. "In the face of Cy Young D, only fools will buy Benz IV, which may become one of the maxims of CPU purchase in 2005". When purchasing Celeron D, you can choose not only the E0 version Celeron D320 bulk product with CPU number SL87J, but also the 3.6GHz Celeron D320 bulk product sold by JS. Although it is about 50 yuan more expensive than the bulk product of the same model, it is still worth keeping 3.6GHz.
Core Architecture Make Intel a big player. Intel will certainly not forget Celeron, a low-end processor Conroe-L The single core architecture enables the new Celeron to significantly improve its performance and significantly reduce its power consumption, making it the first choice for low-end users. Power consumption is only 35W, and Overfrequency The performance is still good. Many DIYers can be installed on the 945 motherboard fsb From the original 200MHz to 333MHz, the performance has also been greatly improved, and the power consumption is also within the acceptable range. From this Dual core CPU was born, and its Sandy Bridge It should be the same as Core 2 Duo E4000 series Allendale 。 stay Pentium dual core And further reduce the L2 cache. Intel celeron performance is closer to the mainstream. Cylon M is often used Notebook computer Middle, the previous generation Mobile Processor A low-end, but practical processor, because of its low frequency and low voltage, is often favored by users who are sensitive to endurance. Celeron M is a compressed version of Pentium M. Common models include Celeron M310 320, 330, 340, 350, 360, 430, 540, etc. be used for Notebook Dual core “ Celeron M SU2300 ”Main frequency 1.20GHz, secondary cache 1MB, front-end bus 800MHz, price US $137 。 Finally Notebook single core “ Celeron M 743 ", main frequency 1.30GHz, secondary cache 1MB, front-end bus 800MHz, price US $107 , will replace 65nm Celeron 723. “ Celeron M nine hundred ”, the main frequency is 2.20GHz, the second level cache is 1MB, and the front-end bus is 800MHz. The Celeron dual core series used in notebook belongs to a new generation of low-end Mobile Processor , has released two series: T1000 series and T3000 series. The latter has significantly better performance and advanced technology than the former. The T1000 series Celeron mobile processor has a frequency of more than 1.6GHz, and its core architecture is Merom , front end bus is 533 or 667MHZ, L1 cache 2x32K。 L2 cache 512K or 1M, supporting Instruction set MMX 、 SSE 、SSE2、 SSE3 、SSSE3、 EM64T , process 65NM, power consumption 35W, and the new generation T3000 series Celeron uses 45nm The main frequency is above 1.8GHz. This version of Celeron has almost no improvement in the instruction set, and only the highest SSSE3 Multimedia instruction set , and still does not support Intel VT. The L2 cache is a shared 1M! In terms of power consumption, it is still 35W. The Celeron of this series has significantly improved its performance, process and efficiency compared with Merom. It is not very different from the Pentium T4000 series and Core 2T series of the same process, mainly because of its castration on the second level cache and the main frequency. Celeron E3200/E3300
In the 45nm core Celeron series“ Celeron E3300/E3200 ”It has also been put on the market in advance. In addition to the new process, the biggest feature is to retain the VT virtualization technology In terms of specifications, the main frequency is 2.50/2.40GHz, the secondary cache is 1MB, the front-end bus is 800MHz, and the price is 53/43 USD 。 It is worth noting that, This is the first time that Celeron E/M series processors have introduced 45nm However, the Celeron Mobile T3000/900, which used to be a laptop only, used the 45nm process.
The Cylon brand is about to be carried forward again in the Sandy Bridge era. The once unknown entry-level brand Cylon is also back in the Jianghu. Three new models will be launched in the third quarter. The desktop version of the new Celeron will have three models, of which "Celeron G540" and "Celeron G530" are dual core and dual thread, with the main frequency of 2.5/2.4 GHz, the secondary cache reduced to 2 MB, and the integrated graphics core HD Graphics 2000, with the frequency of 850-1100 MHz, Thermal design power consumption 65W。 In addition, there is a low specification energy-saving version of "Celeron G440". The thermal design power consumption is only 35W, but only a single core Single thread (What age is it?) The main frequency is only 1.6GHz, and the graphics Core frequency It is also reduced to 650-1100MHz, and the memory support is also lower（ DDR3 -1066)， L3 cache Keep it at 2MB. Three new Cylon models technical support In addition to Hyper Threading 、 Turbo Boost In addition to dynamic acceleration, AES-NI Instruction set 、 VT-d Virtualization（ VT-x (Reserved), etc. are also deleted. In terms of price, G530 loose tablets are 270 yuan and G440 loose tablets are 240 yuan. At the beginning of 2013, Celeron G1610 was also listed.
Celeron 1019Y is the fifth generation ultra-low voltage Ivy Bridge processor, with the maximum dispersion Thermal design power consumption （ TDP ）Less than 13W. Intel The "mysterious veil" of this processor has been unveiled. Like other Celeron processors, the 1019Y is a Dual Core Processor , which Clock speed It is 1GHz and is equipped with 2MB level 3 cache Basic frequency 350MHZ, and the maximum dynamic frequency is 800MHZ. Although this processor supports virtualization Basic technology However, it lacks some advanced technologies, such as Hyper Threading Technology and Turbo Boost 。 However, the highlight of this processor is its low power consumption The maximum thermal design power consumption is only 10W, while the scene design power consumption (SDP) is only 7W. The processor now sells for $153 (about RMB 950 yuan). [1] 
