Help with understanding AMD vRAM?

Tom Pokenutter

Reputable
Sep 4, 2014
5
0
4,510
So, I own an HP Pavilion 15z that has an AMD A10-5745m processor with a Radeon HD 8610G Integrated GPU. It also has a Radeon R7 M260 with 2GB dedicated memory, and 8GB of system RAM (if the last one affects the answer.)

I know that integrated graphics are usually dependent on system RAM, and according to the Windows Screen Resolution Control Panel, I have 3456 MB of Shared System Memory- about 3.5 GB, if I've done the math right. Is it always 3.5 GB? Or is that dependent on my RAM?

According to AMD's Catalyst Control Center, the 8610G also has 768 MB of dedicated vRAM. However, I thought it drew from the system RAM entirely. If it doesn't, I would understand- it says that I have more than the 2048 MB of vRAM promised by my dedicated GPU. However, instead of 2816 MB that would result, it says that I have 3072 MB- 3 GB. A lot of this seems like very contradictory information, and all I want to know is if I have a strong gaming laptop.

The tl;dr version:

My specs are:

Total Available Graphics Memory: 6528 MB
Dedicated Video Memory: 3072 MB
System Video Memory: 0 MB
Shared System Memory: 3456 MB

Catalyst Control says that I should have 2.75 GB dedicated from two sources, one of which may or may not actually be able to supply that.

What does this all mean?

If you need additional information, please ask.
 
Strong? No. Pretty fair middle of the road? Maybe. Depending on how demanding the games you're playing are it should do well at high settings on some but on very demanding modern games it will need to be taken down to medium settings for smooth game play. All in all it's a decent rig but I would never call it a strong gaming machine. It only has 384 shader cores which is pretty low compared to top shelf gaming GPU's. It also has a top clock of 626mhz whereas the popular 860M currently has a stock clock of 1029mhz.

Here's a synthetic benchmark comparison which clearly shows it lagging behind vs many of the other mainstream gaming gpus although synthetic benchmarks don't always mean anything it does offer a starting basis for comparison.

http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+8610G
 

Tom Pokenutter

Reputable
Sep 4, 2014
5
0
4,510
Alright. But do you know anything about my other questions? Such as why there is more dedicated memory than the math says there should be?

In addition, that list only shows the 8610G. Most of the power on this laptop comes from the R7 M260. Or is that what you were talking about?
 
What is the exact model number or service tag of your unit? Have you added any hardware or is everything factory? The exact model number, which is not Pavilion 15z, there's more to the model number, should be on a sticker or printed on the case somewhere. Sometimes it's printed on the case under the battery. Your order invoice should have listed the model number as well. I can tell you more relevant information once I know that.