Aren't Intel DVMT and maximum memory share the same thing?

[GSGregg]

I've been corresponding on a forum with a user who cites good performance in many demanding applications from his Haswell i3 (model not stated) and Gigabyte H97 Gaming 3 motherboard, even though he is not yet using a discrete graphics card. Every variant of his m/b lists the maximum memory share as 512MB, even though the DVMT spec is either 1720MB or 2048MB. Are the memory share and the DVMT being combined? Seems to me that truncating an ever-improving feature by 70%-75% would be a negative selling point. Thanks.

 

[jbaker22]

They are "The amount of video memory is dependent upon the amount of pre-allocated memory set for your system plus something called DVMT. "

https://en.wikipedia.org/wiki/Dynamic_video_memory_technology

 

[GSGregg]

They are. "The amount of video memory is dependent upon the amount of pre-allocated memory set for your system plus something called DVMT. "

https://en.wikipedia.org/wiki/Dynamic_video_memory_technology

Heh. That article is one of the shortest you'll find in Wikipedia; I guess there's no more info they felt they should relate. My take is, why would a motherboard manufacturer limit accessible VRAM unless they felt that the IGP's being TOO good would hurt future sales of discrete cards---and conversely, why would Intel tolerate that from a partner?

So, it makes sense that the 512MB memory share complement DVMT, rather than merely be a surviving portion of it.

Thank you, jbaker22;

Gregg