The Pentium 4 platform is one of the most evolving platforms in CPU history. Originally designed on a 423 pin interface and RDRAM memory, it has now moved well into DDR country on an mPGA 478 pin interface. Intel last launched a new processor and Chipset platform in 2000. Intel since the introduction has seen many chipsets for the Pentium 4, and 90% of them are coming from Intel'ts own labs, only a small percentage has been from the third party chipset manufacturers.
Originally designed with the I850 Dual Channel RDRAM chipset, the Pentium 4 became something of a high priced snail of the CPU market. PC133 SDRAM and DDR SDRAM proving they can hold RDRAM off should have led Intel down the DDR track much earlier. However, licensing agreements with Rambus prevented Intel from supporting DDR SDRAM before 2001. I845 chipset was released in order to reduce Pentium 4 platform costs. Designed to use PC133 SDRAM, it led Intel into a very large memory bottleneck. As soon as the agreements between Intel and Rambus had expired Intel moved straight into DDR SDRAM with the I845D chipset, this was the third Intel chipset for the Pentium 4 - 533Mhz FSB brought Intel to release its forth chipset - the I845E and I845G.
Intel was largely criticised for its lack of DDR-333 memory support for the I845E and G series made Intel review its chipset designs, the fifth chipset series came in the form of the I845PE and I845GE. Identical to the E and G with DDR-333 support. Again Intel was criticised for its lack of AGP 8x transfers.
While not originally intended for the desktop sector, but more towards entry level servers and workstations, the Granite Bay or E7205 chipset was Intel'ts first leap forward for the Pentium 4. Designed as the first Dual Channel DDR SDRAM platform for the Pentium 4 CPU with AGP 8x support, it was a large hit due to its increased memory bandwidth. Now Intel moved this a few steps forward with the Canterwood I875P chipset which we present to you a few days later after the NDA expired due to server issues we were experiencing.
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