F5F Stay Refreshed Hardware Desktop Not possible to boost GPU VRAM beyond 1GB on UHD770.

Not possible to boost GPU VRAM beyond 1GB on UHD770.

Not possible to boost GPU VRAM beyond 1GB on UHD770.

A
AstroZone
Member
136
02-19-2026, 03:04 PM
#1
I can't boost my VRAM past 1024MB in UHD770. The display shows varying sizes depending on the location, and changing BIOS settings doesn’t reveal more than 1GB. When I pick an aperture size of 1024MB, it mentions something about 2048MB being lower, which isn’t clear. Since this is new to me, please let me know if you can clarify what’s happening.
A
AstroZone
02-19-2026, 03:04 PM #1

I can't boost my VRAM past 1024MB in UHD770. The display shows varying sizes depending on the location, and changing BIOS settings doesn’t reveal more than 1GB. When I pick an aperture size of 1024MB, it mentions something about 2048MB being lower, which isn’t clear. Since this is new to me, please let me know if you can clarify what’s happening.

Z
zMadeus
Posting Freak
755
02-19-2026, 04:15 PM
#2
Welcome to the forums! There must be a 1gb limit then. My dGPU has the same thing in Task Manager and GPUZ "Dedicated GPU memory" = how much is on the GPU, "Shared GPU memory" is how much of your RAM the GPU VRAM can overflow into if it fills up, "GPU memory" is those two things combined The 2048mb thing in the BIOS is just a generalized warning for boards or BIOSes you can do that on
Z
zMadeus
02-19-2026, 04:15 PM #2

Welcome to the forums! There must be a 1gb limit then. My dGPU has the same thing in Task Manager and GPUZ "Dedicated GPU memory" = how much is on the GPU, "Shared GPU memory" is how much of your RAM the GPU VRAM can overflow into if it fills up, "GPU memory" is those two things combined The 2048mb thing in the BIOS is just a generalized warning for boards or BIOSes you can do that on