Intel Xe-HPG based DG2-128EU GPU board diagram has been leaked

Intel DG2-128EU GPU

It appears that another board diagram of the Intel DG2 family GPU has been leaked by Igor Wallossek.

A proposed draft for DG2 based laptop board design has been published by Igor’sLAB. This board design features both a DG2-128EU GPU (BGA1379 socket) as well as Intel Tiger Lake-H (8-core CPU that comes out in 4 days). The board features 6 memory modules, but only two appear to be attached to the GPU. The DG2-128EU based Intel Xe graphics cards are to feature up to 4GB of GDDR6 memory, so two modules are more than enough for the GPU itself. The additional 4 modules might be soldered system memory.

Intel DG2-128 GPU, Source: Igor’sLAB

This is not the first board diagram that has leaked thus far. Last year a board diagram for DG2-384EU has been leaked. Unlike the DG2-128, the 384 variant is expected to feature the same package as the 512EU model. The latter has not yet been leaked, but it is expected to feature more memory modules around the GPU and a bigger die, compared to both variants. Unlike the 128EU variant, the 384EU has 6 memory modules around the GPU. The former is clearly an entry-level processor.

Intel DG2 GPUs, Source: Igor’sLAB & VideoCardz

DG2: PCIe Gen4 x12 and DisplayPort 2.0?

Another diagram indicates that DG2 might support up to HDMI 2.0 and DisplayPort 2.0, which would be the industry’s first GPU to offer DP 2.0 support. The lack of HDMI 2.1 is a bit of a surprise here, but we do not know how old this diagram is. Another thing that caught our attention is PCIe Gen4 support, which was to be expected, but with a 12 lane width, which is unusual. We do not know if this is a typo, or this only affects a certain DG2 GPU in the family. After all, there are three variants and entry-level does not require all 12 lanes.

Intel Tiger Lake-H & DG2 system diagram, Source: Igor’sLAB

DG2, a family of 5 or 6?

So far we know that the DG2 family features five SKUs with up to 512EUs (4096 shading units), 16GB GDDR6 memory, and TGP ranging up to 150W (according to leaked Intel documents). Interestingly, the SKU1 (aka 512EU variant) may not be the only one based on this particular GPU. There are leaks that suggest Intel might also be working on a 416EU variant, which would make a lot of sense considering Intel still needs to sell not fully functional GPUs somehow. However, for the time being, we are not including this variant in our charts, as Intel has not confirmed or leaked this particular SKU yet (unlike the other 5 listed below).

Contrary to yesterday’s news that DG2 is right around the corner, Igor gives us a more accurate estimate on DG2 production scheduled. According to him SKU4 and SKU5 are to enter mass production in weeks 43 to 50 (late October to mid-December). SKU1, 2, and 3 are to follow the entry-level variants starting from mid-December.

Source: Igor’sLAB