As Toms Hardware details, Z3. Coffee Lake CPUs are both incompatible with previous Intel hardware. You cant stick a Kaby Lake or Skylake CPU in a Z3. Coffee Lake processor in a Z1. Z2. 70 motherboard. Intel claims this is due to power requirements on the newer boards, thanks to the additional CPU cores that are now baked in to every chip. This may be technically true, but its also a bit of a dodge. Intel lays out its plans and roadmaps years in advance the first news that the company would launch a six core Coffee Lake surfaced over a year ago. Intel may be telling the truth when it says it had to build a new socket for Coffee Lake to deal with power requirements and improve overclocking, but thats only because it didnt build a socket for Skylake and Kaby Lake that could support these features in the first place. AMD has pledged to support original Zen motherboards with upgrades through 2. The initial run of motherboards for Coffee Lake will be limited to Z3. B3. 50 or H3. 70 motherboards will ship next year. Official memory support has been bumped to DDR4 2. Weve had some trouble with running higher clock speeds on Intels Core i. X, with one test chip flatly refusing to run DDR4 3. Microprocessor Design Using Verilog Hdl Ebook Store. Then again, Threadripper and Ryzen 7 appear to be more sensitive to RAM clocks than Intels Core i. Running DDR4 3. 20. Core i. 9 family than it does on AMDs Ryzen. The Z3. 70 doesnt offer any new features besides its theoretically improved overclocking and power delivery. The flip side to this is that chipset refreshes dont matter as much as they used to. Fifteen years ago, new chipsets for then cutting edge CPUs often delivered significant performance boosts, thanks to faster RAM clocks or higher FSBs. Thats less common now, and most of the advances we see in motherboard technology involve IO interconnects like M. USB 3. 0 Gen 2, or specialized storage that connects via a modified DRAM slot. We also dont know if Coffee Lake CPUs or motherboards will be compatible with Cannon Lake when Intels 1. There are rumors that the Cannon Lake refresh could include eight core desktop CPUs and a new Z3. Coffee Lake CPUs will work in Cannon Lake motherboards or vice versa. Now read Intel Core i.