VRAM Detection is strange with Asus R9 390

[Austin__23]

I just installed an Asus Strix R9 390. The card has 8GB of VRAM. Radeon Settings shows 8GB, CPU-Z shows 4GB, Sleeping Dogs benchmark showed 3GB, and MSI Afterburner showed 3GB. Is this just a common detection issue with software, or is there a possible problem? I am running on the latest Crimson driver released on November 30th.

 

[Dunlop0078]

Im not entirely sure I have seen someone else post the same thing like yesterday. Never heard about it before that so it could be a bug in the latest driver update in that case the next update should fix it. But im not sure, if people were having this issue before the latest update then I have no idea whats causing it.

 

[13thmonkey]

32 or 64 bit windows?

 

[Austin__23]

64-Bit Windows 10

 

[13thmonkey]

is cpu-z a 32bit app? I'm wondering if we are starting to see these apps run up against memory limits, and whether they give the right answer is either whether they are 32 or 64bit, or whether they actually query the address pace or just use a table to tell you what it should be.

 

[Dunlop0078]

is cpu-z a 32bit app? I'm wondering if we are starting to see these apps run up against memory limits, and whether they give the right answer is either whether they are 32 or 64bit, or whether they actually query the address pace or just use a table to tell you what it should be.

They have 32 and 64bit versions.

 

[Austin__23]

It has a 64-Bit version. I just started up Arkham Knight because it has a VRAM meter, and it detected 8GB. I'm guessing it's just a software bug in detection for some games and programs.

 

[chris987]

if amd drivers reads 8 gb then you most probably need to update your monitoring software. cpu z is usually inaccurate detecting gpu. thry gpu z

 

[Dunlop0078]

Probably. And it would be good to use GPU-Z when reviewing gpu specs i bet it will show thr right amount, as the names imply one is meant for cpu's the other for gpu's.

https://www.techpowerup.com/downloads/SysInfo/GPU-Z/

 

[Austin__23]

if amd drivers reads 8 gb then you most probably need to update your monitoring software. cpu z is usually inaccurate detecting gpu. thry gpu z

You're right, GPU-Z shows 8GB. I was using CPU-Z out of habit of it already being installed.

 

[chris987]

if amd drivers reads 8 gb then you most probably need to update your monitoring software. cpu z is usually inaccurate detecting gpu. thry gpu z

You're right, GPU-Z shows 8GB. I was using CPU-Z out of habit of it already being installed.

cpu z would detect my 7970 as 2gb, up until recently. an update fixed the issue.