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MacBook Pro 13" 2012 max VRam

B

bleta

macrumors newbie
Original poster
Jun 25, 2013
20
0
Hi all,
I recently upgrade my ram at 16gb 1600Mhz but the VRAM seems to stacked in 512mb while at the same time some other products that i saw on the internet such as Mac mini and 13" Rmbp uses 768mb of VRAM..
Does anyone knows what's happening?
 
You can't change the VRAM without changing the grafic card. It's not the same kind of memory as the RAM. The VRAM is dedicated on the grafic card. On some computers that have integrated grafic card to the motherboard, they have dedicated some amount of the regular RAM as VRAM, and then you can change it. On your computer though (and close to every other computer) there's a dedicated separate VRAM, which you can't change. Only thing you can change is the regular RAM but it won't change your grafics. But your computer will still feel faster by upgrading your RAM
 
I have maxed out the main ram on my computer but because of the shared VRAM of my graphics card Intel HD 4000 should be increase at some point when I increased the ram..Some macminis and retina mcp with same specs and less ram (8 gb) they are able to see 768mb of vRAm
 
xnview said:
You can't change the VRAM without changing the grafic card. It's not the same kind of memory as the RAM. The VRAM is dedicated on the grafic card. On some computers that have integrated grafic card to the motherboard, they have dedicated some amount of the regular RAM as VRAM, and then you can change it. On your computer though (and close to every other computer) there's a dedicated separate VRAM, which you can't change. Only thing you can change is the regular RAM but it won't change your grafics. But your computer will still feel faster by upgrading your RAM
Click to expand...

Umm, no. (S)he is talking about the iGPU, which shares memory with the RAM on all Apple computers. More RAM should and does mean more vRAM, up to 768MB.
 
B... said:
Umm, no. (S)he is talking about the iGPU, which shares memory with the RAM on all Apple computers. More RAM should and does mean more vRAM, up to 768MB.
Click to expand...

Exactly, but in my case 16gb of ram does not increase the VRam at 768 but its stucked at 512...Is there any way to fix that?
Anyone else has the same issue?
 
bleta said:
Exactly, but in my case 16gb of ram does not increase the VRam at 768 but its stucked at 512...Is there any way to fix that?
Anyone else has the same issue?
Click to expand...

SMC reset and restart to start.
 
In OSX for the most part you need very little VRAM. How much VRAM you have is simply decided for you by Apple. They think with this much RAM it makes sense to put that much aside for VRAM. It is arbitrary and generally doesn't matter. VRAM won't improve performance by even the smallest bit in 99.9% of cases. If Apple thought it helped you in any meaningful way they would increase the size. Or they'd do it like Windows if it was a painful tradeoff.

In Windows it works differently and when you want to run games you should boot Windows anyway. Windows just sets some minimum usually as a bios setting 64-512MB but dynamically adds up to 1.7GB on runtime if the GPU thinks it needs it.

I can imagine no use case where more than 512MB would help in any way in which a HD 4000 isn't completely inadequate anyway. More VRAM wouldn't save the day.
 
smc reset does not fix the issue..
I hold down the shift+ctrl+opt & power button at he same time but nothing happened
 
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