Friday, August 15th 2025

Intel Enables Shared GPU Memory Override for iGPUs, Enables Larger Capacity

Intel has introduced a new driver feature called Shared GPU Memory Override, which allows integrated Arc GPUs on select Core Ultra systems to reserve a significantly larger portion of system RAM for video memory. The control appears in Intel Graphics Software as a slider that increases the percentage of system memory available to the iGPU. Early release notes and driver listings indicate default values near 57%, while vendor examples suggest that the control can allow significantly higher allocations on high-memory laptops, at 87% on Intel's demo. Intel positions the capability as a way to close the gap between integrated and discrete solutions for memory-bound graphics workloads and to give developers and power users greater flexibility for non-gaming tasks such as running local AI models.

Intel's implementation mirrors AMD's Variable Graphics Memory feature for Ryzen AI platforms, which similarly reallocates system RAM to the GPU and has been demonstrated alongside driver-level enhancements, such as AFMF, to increase frame rates in specific titles. Both approaches exploit unified memory architectures to enlarge the effective VRAM pool; however, this is not a universal performance win. Some games will opportunistically load larger assets when more VRAM is available, which can blunt or even reverse the gains. Users must install Intel's latest driver and reboot to enable the override. Minimum RAM and platform requirements also apply. OEMs may expose similar options in BIOS, and manufacturers will publish guidance. However, for workloads that are always VRAM-limited, such as local LLMs, it is essential to have an option to extend the iGPU's memory capacity, allowing larger models to run without an internet connection.
Sources: Bob Duffy (Intel), via VideoCardz
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10 Comments on Intel Enables Shared GPU Memory Override for iGPUs, Enables Larger Capacity

#1
JimmyDoogs
Heck yeah. I gotta see if this means I can allocate all the RAM of my MSI Claw 8+ as System RAM and use my eGPU's VRAM as the only VRAM.

I freaking love my eGPU but have only gotten the AOOStar 2 to work with a 50 series card as that's the only one equipped to handle my 5070. Otherwise if you wait a few more months for the Thunderbolt 5 eGPU's this'll resolve the weird connection issues and most likely get an even more stable connection. There are still moments when the AOOStar 2 crashes but it only happens once every few hours compared to something like the Trebleet eGPU dock which was crashing after 1 minute. I think it has to do with the PCIE and power supply involved with the Trebleet. Very fun project but if you're considering a new handheld PC the new Lenovo Lengion GO 2 with the OLED HDR screen is the way to go for this project.

Legion GO 2 and a Thunderbolt 5 port is the gaming console format of the future and it comes out this year.
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#2
lexluthermiester
This could be very handy. Took long enough, but better late than never.

The upside is, install faster RAM and a bunch of it(24GB+) and then set the IGP for half of it and it'll be a solid upgrade to performance. It'll be by no means the same as a DGPU, but still, any improvement is a welcome improvement.
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#3
Vya Domus
Just realized AMD and Intel have an opportunity to seriously screw over Nvidia by basically giving everyone a GPU for machine learning with "unlimited" memory capacity for every CPU they sell.
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#4
Jism
And does it (even) work addressing 20GB of VRAM to a chip that's likely not even capable of actually using it to good use?
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#5
Solaris17
Super Dainty Moderator
This is a really good addition especially for handhelds wherein games can and in most cases are stored on much larger micro SD cards for which the R/W speeds are atrocious. Out of curiosity I grabbed my 2nd gen MSI claw and updated it, enabled the setting, rebooted everything was good. but starting oblivion remaster it still gave a warning about "only" having 1gb of vram when 6gb was needed.

The claw and even these configs in laptops already dedicate more then that to the vram, but I was curious if this would fix that particular issue, with oblivion remaster and by extension possibly other games.

It did not. Just for those curious.
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#6
kondamin
Nice now add an extra memory channel and make it gddr
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#7
lexluthermiester
Solaris17Out of curiosity I grabbed my 2nd gen MSI claw and updated it, enabled the setting, rebooted everything was good. but starting oblivion remaster it still gave a warning about "only" having 1gb of vram when 6gb was needed.
Perhaps there's a BIOS setting the game is looking at instead of the dynamic allocation table?
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#8
Solaris17
Super Dainty Moderator
lexluthermiesterPerhaps there's a BIOS setting the game is looking at instead of the dynamic allocation table?
On the claw there is but it maxes out much like other BIOS I think it’s like 256mb.
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#9
lexluthermiester
Solaris17On the claw there is but it maxes out much like other BIOS I think it’s like 256mb.
That sucks. It was only a thought..
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#10
LabRat 891
Honestly, I wonder how useful this is for 'chugging through' LLM workloads?
Might be slow as mollasses but, getting 32+GB of 'VRAM' usable, could be handy for non-gaming non-multimedia use.
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