Originally Posted by 8051
Is the eDRAM just a faster version of whatever DDR memory is available at the time? So on the 5775c the eDRAM was just super fast DDR3?
If the above is the case what does the eDRAM consist of in the Crystalwell CPU's? DDR4?
Yes, the eDRAM is just fast DRAM just like double data rate DRAM (ddr), and the Crystalwell had 1600mhz native DRAM while Broadwell had 1800mhz native DRAM. The edram controller and how they wired it in must have made it faster.
Crystalwell came before Broadwell and is just like it, except it is 22nm and has Haswell cores. Architectural changes were made with Broadwell and it is faster in every way except clockspeed. Even with the clockspeed deficiency it is faster.
Last month I did a comparison between my two adaptations: https://www.3dmark.com/compare/fs/21421184/fs/21419094#
The Broadwell result registered the unused Fury for some reason, but the iris 6200 was used at 1250mhz. The Crystalwell had a gpu clockspeed of 1500mhz so the two igpus were matched for tflops.
The Crystalwell works in the two h81 boards and two EVGA Z97 boards I've tried, but no bga 1364 to lga 1150 adaptation I have worked in either my Asus Z97 Hero or daughter's Z87 Deluxe.
The 4980hq does make for a ringer of a 1.4 liter thin itx cpu
But for an old board like that a $50 used 4670k would be a better buy if you didn't have an impulse purchased 4980hq to put in.
I dug up a couple of pictures: First is Haswell, Crystalwell, Broadwell and the second is thin itx(L7 in sig), my living room consoly/vr itx with the fury and 5950hq, and atx (L5 from my sig). If you want a desktop that doesn't need a dgpu, thin itx is in a different league than itx.