Graphics card memory question

[sam_p_lay]

I have these lines in my DXdiag output:

Display Memory: 4095 MB
Dedicated Memory: 3072 MB
Shared Memory: 1023 MB

Why would there be shared memory on my graphics card?

 

[DonkeyOatie]

Shared memory is very low latency memory available for CUDA programming when the GPU is used for general purpose computing.

 

[sam_p_lay]

Thanks, I had no idea!

 

[DonkeyOatie]

Modern graphics cards are designed to be used as additional process for general mathematical computing.

 

[sam_p_lay]

Not in my rig ;-) Thanks for your help.