intel processor history timeline
Intel’s first 32-bit x86 processor was the 80386, released in 1985. One key advantage that this processor had was its 32-bit address bus that allowed it to support up to 4GB of system memory. Although this was far more than anyone was using at the time, RAM limitations often hurt the performance of prior x86 and competing processors. Unlike modern CPUs, at the time the 80386 was released, more RAM almost always translated into a performance increase. Intel also implemented several architectural enhancements that helped push performance up above the 80286, even when both systems used the same amount of RAM. It also supported virtual mode processing, which increased multi-tasking support.
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A driving force behind the global technology revolution, Intel shapes the future today.
Decades of Intel chips, including the 22nm 3rd generation IntelВ® Coreв„ў processor with its revolutionary 3-D Tri-Gate transistors, illustrate IntelвЂ™s unwavering commitment to delivering technology and manufacturing leadership to the devices you use every day. As you advance through the chart, the benefits of MooreвЂ™s Law, which states that the number of transistors . roughly doubles every couple of years, are evident as Intel increases transistor density and innovates the architecture designs that deliver more complex, powerful, and energy-efficient chips that transform the way we work, live, and play.
Over time, the Pentium 4 series became increasingly confusing, with Mobile Pentium 4-M processors, Pentium 4E HT (hyperthreading) processors with support for a virtual second core, and Pentium 4F processors with the 65 nm Cedar Mill core (Pentium 4 600 series) in 2005. Intel planned to replace the Pentium 4 family with the Tejas processor, but canceled the project when it was clear that Netburst would not be able to reach clock speeds beyond 3.8 GHz. Core, the following architecture, was a dramatic turnaround to much more efficient CPUs with a strict power ceiling that put Intel’s gigahertz machine in reverse.
In 1988, Intel followed up with the 1,000 nm 386SX, which had a narrower 16-bit bus to target mobile and low-cost desktop computing systems. Although the 386SX remained fully 32-bit capable internally, the data bus was cut down to 16 bits to simplify circuit board layout and reduce costs. Additionally, although not critical at the time, only 24 pins were connected to the 386SX’s address bus, which effectively limited it to addressing 16MB of memory.
All processors are listed here in chronological order.
This generational list of Intel processors attempts to present all of Intel’s processors from the pioneering 4-bit 4004 (1971) to the present high-end offerings. Concise technical data is given for each product.
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