3.5 gb + 0.0 gb = 4 gb

gtx 980m only had 3.5 gb??

 

Did you have some VRAM in use so all could not be allocated?

 

i dunno @Dufus
just checking vramtest with that tool several times only 3.5 gb
i have optimus laptop
is it normal?

 

Download GPU-Z: http://www.techpowerup.com/gpuz/

Show us what it says with a screen shot.

 

it says 4 gb @J.Dre

 

Your card seems to be working fine. It has 4GB's of VRAM.

1. Press the Windows Key + I and enter the Control Panel.
2. Under the Appearance and Personalization, click Adjust screen resolution.
3. On the middle of the right-hand side of the screen, click the Advanced settings.
4. A new window should appear with your video adapter's properties; similar to the image shown below.
5. Your video card's memory is under the Adapter tab in the Dedicated Video Memory section (shown below).

Spoiler: What I see (and what you should see).

 

this is mine
on aida64 it only had 3 gb vram

 

why even bother with a throw away account?

 

@gtx980m3.5gb What driver are you using? Try another.

 

i am using latest drivers for windows 10 @J.Dre

 

I'd say it's more likely a software issue of it not recognizing it in Windows 10. Your card is fine.

 

ok i hope it just a software issue or i'll just get double kill(my970&my980m) from nvidia
thank you for your help man

 

As far as I remember, that software you ran TC that tests memory, is useless. It doesn't work with Optimus, nor does it take into account any vram reserved by the OS or for anything. The way people found out about the whole fiasco with GTX 970 was not with that software, as you could literally stress test with games and saturate memory.

Mobile versions of maxwell do not have the same memory division, and we have full ROPs and all.

 

NO CARD OTHER THAN THE GTX 970 HAS THE ISSUE.
ALL MOBILE CARDS HAVE FULL VRAM ACCESS.

The test is designed to stop before maxing out your vRAM. For some reason it feels your vRAM is smaller than it actually is, so it's stopping the test early around 3.2GB. If you feel your notebook is faulty, I'd suggest pointing the issue out to your manufacturer and asking for a replacement, or an explanation. The 980M cards themselves have no fault by design.

 

so i got 3 answers from 3 reputable guys here
i'd say i am safe
i'll note this as software issue
many thanks guys...

 

Just download 3DMark and bench your system from time to time. You can also use monitoring software while gaming (e.g. MSI Afterburner) which will tell you how much VRAM is being utilized. 90% of the time, you'll never reach 4GB's of VRAM usage in any game. Few games use more than 3GB's at 1080p.

Yes, my bad. I knew that it didn't have this issue, I was just trying to say that NVIDIA has cleverly designed Maxwell to be able to disable ROP modules.

I've removed that from my post to not confuse anyone... My apologies, again.

 

i'll try and post my result

 

here is my 3dmark firestriker high performance 1080p default



my cpu si too weak,isn't it?

 

@gtx980m3.5gb open GPU-z and select sensor tab then run the attached.

 

this is my result


dunno what am i suppose to do

 

That was quick.

GPUMem tries allocate all available VRAM leaving 1KB free. You can see in the screen shot there is no memory left to allocate (0 - Free) but you have used less than 3.5GB with 4GB total. Don't know if this is a W10 thing or not. Maybe one of the other guys with 980m can try see what they get.

 

i am just confused by my card and here i am trying to find some helpful information from members
i am trying to reply as fast as possible to respect all of your respon
4 notable members confirmed it as software/os issue
thank you

 

Here's a desktop 2GB card using W10 and 9.18.13.4411 DX11.2




And W10 using 10.18.13.5362 DX12



As you can see we loose a large percentage of available VRAM. Don't know if that's to do with DX12 or not.

 

This is interesting. I have a potentially failing 880m. Could running this test diagnose faulty vram if it cannot fill the memory correctly?

Was really hoping to not have to start another thread.

 

Seems like Windows 10 is the culprit. No idea why.

 

WDDM changes in Windows 10 are causing VRAM usage to be reported incorrectly

 

I actually wasn't speaking directly to you XD.

 

Maybe tied with this?
This section describes new features for driver development in Windows 10

There's a new registry entry for the 10 drivers that appears to handle just that:

Code:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\\MemoryManager]
"DxgMms2OfferReclaim"=dword:00000002
"DmaBufferBytesLimitAllDevices"=dword:20000000
"DmaBufferListBytesLimitAllDevices"=dword:10000000

Might tinker with the values and see what's what ...

Really like those ' DxgMms2OfferReclaim'-type strings, btw; kinda like a puzzle ... Direct x graphic Memory manager ... errr ... something-something .

 

This has gone far enough. NVidia themselves have come out and said they have 3.5GB for regular GPU usage 500MB of "slower" memory (slower than system caching apparently)... If you take any further issue or have any other proof that nVidia is lying, feel free to PM it to me. This is the notebook forum, however, and while I could move it to desktop I will not do so unless I see a consolidated PM of proof. Post closed. There is nothing showing any mobile card having less than advertised.