VR-Zone has spotted a BGA socket Haswell processor fitting the description of the rumored GT3e "Crystal Well" integrated graphics processor at IDF 2013.
VR-Zone has spotted what appears to be an Intel Haswell processor fitted with a GT3e "Crystal Well" integrated video processor (IGP), a special variant of the GT3 that includes a form of L4 cache memory known as embedded DRAM (eDRAM) that is intended to compete with chips such as Nvidia's GeForce GT 650M. Though the size of the eDRAM is presently unknown, we've so far heard reports from Fudzilla that suggests a 64 MB L4 cache and Hardware.info that places it at either 64 MB or 128 MB.
The GT3e IGP will feature the same 40 GPU cores as seen on the GT3, so it can be expected to deliver roughly twice the performance of Intel's current HD 4000 series graphics cards. According to VR-Zone, it will only be available soldered onto BGA socket "performance" processors intended for quad-core 55W notebooks and All-In-One desktops.