Intel Xe-HPG DG2 GPU Powered Laptop & Desktop Graphics Cards Specifications Leak Out,

Just a day after Intel stated that its Xe-HPG DG2 GPU powered graphics card lineup is right around the corner, a new leak has unveiled specifications of several laptop and desktop SKUs which will be launching later this year.

Intel Xe-HPG DG2 GPU Powered Mobility & Desktop Graphics Lineup Leaks Out, Coming To Alder Lake-P Laptops Later This Year

Published by Igor’s Lab, the latest details show a block diagram that suggests that Intel had initially planned Xe-HPG DG2 GPUs for its high-end Tiger Lake-H chips which are launching next week but it looks like the lineup didn’t align with the 11th Gen CPU launch hence they will now be introduced in the 12th Gen Alder Lake-P laptops that launch in the second half of 2021.

Intel Xe-HPG GPU Powered Gaming Graphics Cards Launching Soon, Company Rep States ‘DG2 Is Right Around The Corner’

Looking at the block diagram, we can see that the Tiger Lake-H and the Intel Xe-HPG DG2 mobility GPU will be connected through a PCIe Gen 4.0 x12 interface. The GPU has its own subsystems that are connected to it as represented below:

A block diagram representing an Intel mobility laptop platform featuring Tiger Lake-H CPUs & Xe-HPG DG2 discrete GPUs. (Image Source: Igor’s Lab)

Interestingly, TUM_APISAK confirms that this was the case as he spotted an Intel Xe-HPG 416 EU part clocked at 1100 MHz on the Tiger Lake-H platform back in March.

Moving to the specific SKUs, the Intel Xe-HPG DG2 GPU lineup for desktop and mobility platforms will feature at least 5 SKUs. The first three SKUs are based on the BGA2660 package & feature up to 512 EUs (Execution Units) or 4096 cores. It looks like the rest of the BGA2660 SKUs but will end up with different die sizes based on the configuration.

Intel Xe-HPG DG2 512 EU Discrete Gaming Graphics Cards

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Each Xe-HPG based DG2 GPU SKU will come in various configurations which will range from the full-fat chip to several cut-down variants. This is similar to NVIDIA’s Ampere GA102-400, GA102-200 naming schemes, or AMD’s Navi 21 XTX, Navi 21 XT, Navi 21 XL naming conventions. The top DG2 512 EU variant has just one configuration listed so far and that utilizes the full die with 4096 cores, 256-bit bus interface, and up to 16 GB GDDR6 memory (8 GB GDDR6 listed too). Based on demand and yields, Intel could produce more variants of this flagship chip but we can’t say for sure right now.

The 512 EU part is suggested to feature an 1100 MHz base and 1800 MHz turbo clock speed on the mobile platform. The chip will carry 16 MB of smart cache and will come in a 100W TDP package.

Intel Xe-HPG DG2 384 EU Discrete Gaming Graphics Cards

Moving on, we have the Intel Xe-HPG DG2 384 GPU SKU which is expected to comprise at least three variants. The full fat chip will feature 3072 cores, up to 12 GB GDDR6 memory (6 GB GDDR6 listed too), and a 192-bit bus interface. Then we have two variants, a 256 EU and a 192 EU variant which are comprised of 2048 and 1536 cores. While both variants feature a 128-bit bus interface, the 256 EU SKU will come with up to 8 GB GDDR6 memory (4 GB GDDR6 listed too) while the 192 EU variant will stick with just 4 GB GDDR6 memory. Based on the specifications, these GPUs will be positioned as mainstream parts.

Videocardz had earlier leaked out the die configuration of the Intel Xe-HPG DG2 384 GPU variant which should measure 190mm2. The PCB blueprint shows 6 memory module locations which do confirm a 192-bit bus interface and either 6 or 12 GB GDDR6 memory capacity. The 384 and 256 EU SKUs are expected to feature 16 MB and 8 MB smart cache, respectively. The clock speeds for the 384 EU parts are reported at 600 MHz base and 1800 MHz turbo while the 256 EU part will feature a 450 MHz base and 1400 MHz turbo clock.

What’s interesting is that

Intel Xe-HPG DG2 128  EU Discrete Gaming Graphics Cards

Then lastly, we have the Intel Xe-HPG DG2 128 EU parts. The top config is once again a full-fat SKU with 1024 cores, a 64-bit bus interface, and 4 GB GDDR6 memory. The cut-down variant will come with 96 EUs or 768 cores and a 4 GB GDDR6 memory featured across a 64-bit bus interface. This GPU will be very similar to the DG1 GPU-based discrete SDV board however DG2 will have a more improved architecture design and definitely more performance uplift over the first-gen Xe GPU architecture. This lineup is definitely going to be aimed at the entry-level desktop discrete market based on the specifications.

Intel Xe-HPG DG2 GPU Specifications (Credits: Igor’s Lab)

Package typeBGA2660BGA2660BGA2660TBCTBC
Supported Memory TechnologyGDDR6GDDR6GDDR6GDDR6GDDR6
Memory speed16 Gbps16 Gbps16 Gbps16 Gbps16 Gbps
Interface / bus256-bit192-bit128-bit64-bit64-bit
Memory Size (Max)16 GB12 GB8 GB4 GB4 GB
Smart cache size16 MB16 MB8 MBTBCTBC
Graphics Execution Units (EUs) 512384256196128
Graphics Frequency (High) Mobile 1.1 GHz600 MHz450 MHzTBCTBC
Graphics Frequency (Turbo) Mobile1.8 GHz1.8 GHz1.4 GHzTBCTBC
TDP Mobile (Chip Only)

The Xe HPG GPUs based on the Gen 12 graphics architecture is a brand new design hence it is expected of them to feature brand new shading techniques such as these. Other than that, Intel discrete graphics cards will fully support ray tracing and a range of other capabilities.

Intel Xe-HPG DG2 GPU Based Discrete Gaming Graphics Card Specs:

GPU VariantGPU SKUExecution UnitsShading Units (Cores)Memory CapacityMemory BusTGP
Xe-HPG 512EUDG2-512EU512 EUs409616/8 GB GDDR6256-bit~275W
Xe-HPG 384EUDG2-384EU384 EUs307212/6 GB GDDR6192-bitTBC
Xe-HPG 256EUDG2-384EU256 EUs20488/4 GB GDDR6128-bitTBC
Xe-HPG 192EUDG2-384EU192 EUs15364 GB GDDR6128-bitTBC
Xe-HPG 128EUDG2-128EU128 EUs10244 GB GDDR664-bitTBC
Xe-HPG 96EUDG2-128EU86 EUs7684 GB GDDR664-bit~120W

We have seen the Intel Xe-HPG DG2 GPU-based discrete graphics card engineering sample leak out last month along with some rumored performance and pricing figures, you can read more on that here. All we know for sure is that Intel will be launching its DG2 lineup later this year for desktops & mobility PC platforms.

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