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Intel DG2 Xe-HPG with 8 GB GDDR6 to feature in Tiger Lake-H and Alder Lake-P; Xe-HPG could scale up to 960 EUs to compete with NVIDIA Ampere and AMD RDNA2

Intel DG2 Xe-HPG may be able to compete with NVIDIA Ampere and AMD RDNA2. (Image Source: Intel)
Intel DG2 Xe-HPG may be able to compete with NVIDIA Ampere and AMD RDNA2. (Image Source: Intel)
Intel's upcoming Tiger Lake-H and Alder Lake-P processors could launch with Intel DG2 graphics. According to rumors, Intel DG2 Xe-HPG could come in 128, 384, 512, and possibly even 960 EUs configurations with up to 256-bit 8 GB GDDR6 VRAM. A leaked PCB diagram of the 384 EU part on an MXM-type board indicates a die size of about 189 mm2 and shows six GDDR6 modules.

We've recently seen Intel confirming that an 8-core Tiger Lake-H in indeed in the works. Now, we are getting information that the Tiger Lake-H processors will be paired with the new Intel DG2 Xe graphics. DG2 is expected to be available in 128, 384, 512, and possibly 960 execution unit (EU) configurations.

This information comes from @unikoshardware on Twitter (via Videocardz) who posted a snippet from what appears to be an internal Intel document or web page. The image shows that Intel DG2 with 8 GB GDDR6 VRAM will feature in the 45 W Tiger Lake-H as well as in Alder Lake-P. Presence of 8 GB GDDR6 is an indication that DG2 will use a 256-bit memory interface and this GPU could very well be a 512 EU part.

Intel officially introduced Alder Lake during the Willow Cove architecture brief last month but didn't give any details. From what we know so far, Alder Lake will use a new hybrid core architecture with a cluster of small and big cores. The initial launch is expected to feature a 2+8 (small+big) design with a 6+8 expected some time later. The Alder Lake family will likely launch some time at the end of 2021 and will be comprised of Alder Lake-H and Alder Lake-U offerings as well.

More Intel DG2 Xe-HPG details

Videocardz managed to gather more information about the upcoming DG2 Xe-HPG GPU. Much of the information comes from an anonymous source, so take it with a pinch of salt. That being said, the possibilities don't seem too improbable either.

According to the source, Intel DG2 Xe-HPG is being planned in 128, 384, and 512 EU configurations. A 960 EU part is also rumored to be in evaluation. A 960 EU part means 7,680 FP32 cores (ALUs) and if Intel does mass produce this, it could turn out to be a serious challenger for NVIDIA's Ampere and AMD's RDNA2 lineup. Apparently, Xe-HPG will continue to use GDDR6 VRAM with the 384 EU part rumored to sport a 192-bit memory bus (6 GB GDDR6).

Apart from coming as discrete PCIe cards, DG2 is also likely to feature alongside Tiger Lake-H in notebooks. A PCB diagram of what appears to be an MXM-type board featuring the DG2 384 EU variant shows six GDDR6 modules and a 189 mm2 die size. @Komachi_Ensaka found clues that indicate DG2 will use USB Type-C for display out. This is on expected lines as Tiger Lake laptops come with support for Thunderbolt 4.

Xe-HPG is expected to launch some time in Q2 2021. It will be made by an external foundry, but the process node is not yet known.

Intel Xe-HPG was first indicated during Intel's recent Architecture Day keynote. (Image Source: Intel)
Intel Xe-HPG was first indicated during Intel's recent Architecture Day keynote. (Image Source: Intel)
A PCB diagram of a possible MXM-type board featuring the Intel DG2 Xe-HPG with 384 EUs. (Image Source: Videocardz)
A PCB diagram of a possible MXM-type board featuring the Intel DG2 Xe-HPG with 384 EUs. (Image Source: Videocardz)
Xe-HPG is expected to arrive some time in Q2 2021 with a possible 960 EU option. (Image Source: MebiuW)
Xe-HPG is expected to arrive some time in Q2 2021 with a possible 960 EU option. (Image Source: MebiuW)
Intel Tiger Lake-H and Alder Lake-P will use Intel DG2 with 8 GB GDDR6 RAM. (Image Source: Uniko's Hardware)
Intel Tiger Lake-H and Alder Lake-P will use Intel DG2 with 8 GB GDDR6 RAM. (Image Source: Uniko's Hardware)
Intel DG2 is likely to be offered as a laptop dGPU with USB Type-C display out. (Image Source: Komachi Ensaka)
Intel DG2 is likely to be offered as a laptop dGPU with USB Type-C display out. (Image Source: Komachi Ensaka)
 
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 09 > Intel DG2 Xe-HPG with 8 GB GDDR6 to feature in Tiger Lake-H and Alder Lake-P; Xe-HPG could scale up to 960 EUs to compete with NVIDIA Ampere and AMD RDNA2
Vaidyanathan Subramaniam, 2020-09-17 (Update: 2020-09-17)
Vaidyanathan Subramaniam
I am a cell and molecular biologist and computers have been an integral part of my life ever since I laid my hands on my first PC which was based on an Intel Celeron 266 MHz processor, 16 MB RAM and a modest 2 GB hard disk. Since then, I’ve seen my passion for technology evolve with the times. From traditional floppy based storage and running DOS commands for every other task, to the connected cloud and shared social experiences we take for granted today, I consider myself fortunate to have witnessed a sea change in the technology landscape. I honestly feel that the best is yet to come, when things like AI and cloud computing mature further. When I am not out finding the next big cure for cancer, I read and write about a lot of technology related stuff or go about ripping and re-assembling PCs and laptops.