while I don't think I should give out actual die sizes, I can probably say that Tylersburg is smaller then both Bearlake (G35/P35) and Seaburg (X5400) are larger then Tylersburg, with Eaglelake (G45/P45) being smaller then Tylersburg by about the same ammount that Bearlake and Seaburg are larger. While I don't know much about what is taking up all the space that should have been freed up by no longer having integrated graphics on die like the P35/P45 have, I do know that since Tylersburg is a server chipset, there is a lot of stuff devoted to handling all the cross traffic that will be going through the QPI links. Just keep in mind that the X58 platform is a server chip that was fit into the enthusiast space because it has the PCIe lanes and overclocking functionality we want.
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