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英特尔公司在推出Pentium PRO中虽采用了大量的先进技术,如超标量计算、动态分支预测,更大的流水线深度等、但因Pentium PRO只是针对32位运算进行了优化,而没有对16位运算进行优化,其运行16位软件的性能较差,加上制造成本问题,英特尔公司在Pentium PRO的基础上进行了改进随后,奔腾二代芯片应运而生(Pentium Ⅱ又叫P2)、它一方面增加了对16位运算的优化,并加入了MMX多媒体扩展技术,另一方而又把CACHE(缓存)从CPU内部移到CPU外部,使其性能得到了提高.由于Pentium Ⅱ把援在移到CPU外面,Pentium PRO在缓存上的性能优势在一定程度上就丧失了.为了解决该问题,英特尔公司提出了S.H.C技术(即Single Edge Contact,单一封装技术).所谓S.E.C技术就是把CPU和外部援存两个分离的部件做在一个盒子中,中间用一个比外部总线速度高得多的cache总线,从一定程度上弥补了性能损失.使用S.E.C技术使CPU更容易在高频下运行,并能更好地配合D.I.B技术,而带来的问题是CPU与主板的接口不再是Pen-tium的多针式插座,而是一个新的插槽(Slotl的专用插槽),这给Pentium用户向第二代转换带来了一定困难.PentiumⅡ还采用了一种称为D.I.B(Dual IndependentBus Technology,双重独立总线)的新技术来加快它的数据传送速度.“内”置512KB二?
Intel introduced a large number of advanced technologies in the introduction of Pentium PRO, such as superscalar calculation, dynamic branch prediction, greater pipeline depth, but because the Pentium PRO is optimized for 32-bit computing, but not for 16-bit computing Optimized for poor performance with 16-bit software running, plus Intel’s manufacturing improvements based on Pentium PRO Subsequently, the Pentium II chip came into being (Pentium II, also known as P2), on the one hand Increase the optimization of 16-bit computing, and joined the MMX multimedia expansion technology, the other side of the CACHE (cache) from CPU internal to external CPU, the performance has been improved due to Pentium Ⅱ aid to the CPU Outside, the performance advantage of the Pentium PRO in the cache to a certain extent, lost.In order to solve this problem, Intel Corporation put forward the SHC technology (Single Edge Contact, single package technology) .The so-called SEC technology is the CPU and external storage The two separate components are made in a box with a cache bus in the middle that is much faster than the external bus, to a certain extent compensate for the loss of performance. Using the SEC technology The CPU is easier to run at high frequencies and works better with DIB technology, and the problem is that the interface between the CPU and the motherboard is no longer a Pen-tium multi-pin socket, but rather a new socket (Slotl ), Giving Pentium users some difficulty with the second-generation conversion, and Pentium II also uses a new technology called DIB (Dual Independent Bus Technology) to speed up its data transfer. “Inside” set 512KB two?