Download the Tom's Hardware App from the App Store
The reference for current tech news
Yes No
Ads
Tom's Hardware > Forum > CPU & Components > CPUs > What is AMD Apu a8 3870k maximum amount of video memory?

What is AMD Apu a8 3870k maximum amount of video memory?

Forum CPU & Components : CPUs What is AMD Apu a8 3870k maximum amount of video memory?

Word :    Username :           
 

Hi, I want to set up a new pc, but don't want to spend a lot of money. As for this apu, what's the maximum amount of shared video memory? Does it depend on the motherboard? I've checked a couple mobos but none would give any information about it. Does anyone know?

Thanks.

Reply to j0ndafr3ak
Register or log in to remove.
- 0 +

32mb to 512mb max for UMA {Dedicated from system ram} and another 3.5gb (I think) of hyper memory {Shared from system ram} which is slightly slower than UMA because of the extra layers of management involved between the driver and windows memeory management which UMA does not need to go thru.

edit - the hypermemory is assigned as needed thru windows whereas the UMA is subtracted right on bootup and never available to windows.

Be sure to get 1866 speed memory for best performance.

Message quoted 1 times
Message edited by popatim on 02-12-2012 at 12:30:24 AM
Reply to popatim

popatim wrote :

32mb to 512mb max for UMA {Dedicated from system ram} and another 3.5gb (I think) of hyper memory {Shared from system ram} which is slightly slower than UMA because of the extra layers of management involved between the driver and windows memeory management which UMA does not need to go thru.

edit - the hypermemory is assigned as needed thru windows whereas the UMA is subtracted right on bootup and never available to windows.

Be sure to get 1866 speed memory for best performance.



Thanks for your reply. I've searched everywhere but I couldn't find this piece of information.
So how is UMA memory assigned for video purposes? I mean, is there something influencing whether to reserve 32mb or 512mb for video dedicated memory? Or does it depend on mobo's model?

So, as you say, you can have up to 4 gigs video memory, when needed of course, but speed depends on memory frequency, so I guess this difference in speed (1333, 1600, 1866) is more relevant now that it's used and influences video performances

Reply to j0ndafr3ak
Tom's Hardware > Forum > CPU & Components > CPUs > What is AMD Apu a8 3870k maximum amount of video memory?
Go to:

There are 1685 identified and unidentified users. To see the list of identified users, Click here.

  • Ask the community now
  • Publish
Ad
Ads
Latest best answer
Help Understaing Hardware Montior readings
By DJDeCiBeL, 6 hours ago:

 I agree with that assessment, and with the temps in that range, it's nothing to...

Best offers
They won a badge
Join us in greeting them
Top experts