![]() ![]() Alternatively, DRAM can be placed on a separate die that is manufactured independently of, but then integrated onto the same package as, the CPU. So, there must be a compelling reason for wanting to incorporate it in order to offset this economic disadvantage. One important issue that has led eDRAM not to be common until recently is that the DRAM fabrication process is not inherently compatible with logic processes, so that extra steps must be included (which increase cost and decrease yield) when eDRAM is desired. Intel's Haswell (or at least those products that incorporate the Iris Pro 5200 GPU) and IBM's POWER7 and POWER8 all include embedded DRAM, "eDRAM".
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