On Sun, May 04, 2008 at 11:31:00PM +0200, Jan Engelhardt wrote:Well the brand was well recognized, so they called the P6 "Pentium Pro". Then when they went to make a cheaper version for regular consumers, they made the Pentium II based on the PPro, by making the L2 cache half speed (the PPro ran L2 cache at full speed) and put the L2 cache on a PCB with the core in a cartridge. After a while they added SSE and called it the Pentium !!! (check the logo, they really used exclamation marks) and a while later they managed to shrink their process enough that they could integrate the L2 cache on die, so they made the cache full speed again but on the same die as the cpu core, and soon after started offering plain CPUs again rather than cartridges. The Pentium 4 is of course a totally unrelated design. The Pentium M followed up on the P3 but aiming for lower power consumption rather than maximum performance, and later evolved into the Core and then Core 2 (where again they focused on maximum performance). I think the Pentium 4 may have tarnished the Pentium brand enough that they needed a new name, and hence "Core" came about. -- Len Sorensen --
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