Custom GPU

[ZeusXI]

Why dont chip makers make it so we can upgrade the RAM on a graphics card like they do with Ram to a motherboard? Would be nice to get my GTX 750TI to have 4GB of ram instead of 2GB. But thats just my thoughts. 

[PooPipeBoy]

Apparently there was a GPU ages ago that had a laptop-style RAM upgrade slot.

It was in the LinusTechTips 'History of GPUs' video, from memory.

[VinsinityKT]

It would have to be bigger, and they don't make GDDR5 ram?

[HPWebcamAble]

11 minutes ago, VinsinityKT said:

It would have to be bigger, and they don't make GDDR5 ram?

How do they have it on graphics cards then?

 

30 minutes ago, ZeusXI said:

Why dont chip makers make it so we can upgrade the RAM on a graphics card like they do with Ram to a motherboard? Would be nice to get my GTX 750TI to have 4GB of ram instead of 2GB. But thats just my thoughts. 

Probably a limit of the circuit board, like a custom memory controller on every graphics card or something

Edited March 29, 2016 by HPWebcamAble
Spelling mistakes/clarifications

[Mark77]

The DRAM on video cards tends to be much, much faster than the stuff that people put on CPU's, so there's timing and RF signal integrity issues with add-in modules that may not be present with soldered RAM.  Manufacturers don't want the trouble of supporting a bunch of different modules and complaints arising thereof.  Video cards are fairly low-volume.   Inventory management isn't a problem.  And of course, they want to sell another video card when you run out of RAM on the existing one. 

 

I had a Matrox that I bought some 20 years ago or so that one could add in more RAM via a daughterboard.  And one some earlier 1990s-boards, one could swap from 256kb to 512kb RAM by changing some of the socketed RAM chips on some video boards.  But the number of people who actually did this probably was close to zero.