The eDRAM is mainly for the integrated GPU and an addition to the L3 cache. It's also only available for a few selected Intel CPUs, which usually have higher gr

The eDRAM is mainly for the integrated GPU and an addition to the L3 cache. It's also only available for a few selected Intel CPUs, which usually have higher graphics performance. As Wikipedia puts it [1]: > The 128 MB of eDRAM in the Iris Pro GT3e is on the same package as the CPU, but in a separate die manufactured in a different process. Intel refers to this as a Level 4 cache, available to both CPU and GPU, naming it Crystalwell. [1]: https://en.wikipedia.org/wiki/Intel_Graphics_Technology#IRIS-PRO https://en.wikipedia.org/wiki/Intel_Graphics_Technology#IRIS...