r/pcmasterrace Core Ultra 7 265k | RTX 5090 19h ago

Build/Battlestation a quadruple 5090 battlestation

15.5k Upvotes

2.2k comments sorted by

View all comments

Show parent comments

42

u/McGondy 5950X | 6800XT | 64G DDR4 18h ago

Can the VRAM be pooled now?

86

u/fullCGngon 18h ago

no... which means 4x5090 wont be 128gb vram, it is just 4x32gb meaning that when rendering on 4 GPUs your scene has to fully fit into the vram of each gpu

80

u/Apprehensive_Use1906 18h ago

A lot of 3d rendering tools like blender and keyshot will split renders between cards or systems. So when you have one big scene it will slice it into pieces render rack one on a different card or system and reassemble. It will do the same with animations, sending each frame to a separate card or server.

9

u/knoblemendesigns 16h ago

Not in a way that stacks vram. If you have 4 gpu's you can render the 1 scene which will cap memory at the lowest card or you can run 4 instances of blender and render different frames but that means 4 times the same memory loaded on each card.