#5075283

Robbo9999

2015-05-19 20:24

It will be covered by an IHS.

Thanks for that info, as I suspected it could be then, I've seen some other links since you posted that confirm this too.

As long as there is no air gap at all, heat will spread with no issues.

Well, different materials have different thermal conductivity, which is why heatsinks and thermal pastes are made of the materials they're made of - high thermal conductivity where possible. (Well, thermal pastes aren't highly thermal conductive, but at least the better ones have higher thermal conductivity figures). But I agree, an air gap is horrendous for heat transfer, air is an insulator effectively, but it is important to use the right material for thermal transfer - see the heat issues caused by moving from solder for the IHS with Intel.

#5075319

vbetts

Moderator

2015-05-19 20:56

That heat would just sit there in that air pocket, and another issue that could happen while it's very low chance of happening but moisture could get in that air pocket.

#5075331

Reddoguk

2015-05-19 21:06

So my concerns about the skyscraper effect are unwarranted as H personally asked AMD about my questioning of HSF removal and the worry about damaging gfx cards. Still they may only be answering the question i posed about 1st Gen HBM because it can only achieve 4 stacks but Gen 2 will be 8, 16, 32 stacks(?) and then they might have an issue with the skyscraper effect. I'm not sure if it means 4x4 Gen 1 =4 gb but future Gens maybe 8x8 or 4x8 or 8x4?

#5075637

icedman

2015-05-20 02:00

Ide imagine the new gpu's are going to look like the old ps3's gpu when delided. http://community.us.playstation.com/t5/PlayStation-3/My-CPU-GPU-look-different-to-repair-guide/td-p/6883680

#5075716

JulesCools

2015-05-20 03:51

Talking four years now where a crossfire 7950 or 7970 setup is much more powerful than most (any?) single gpu. This is getting real boring real quick. With dx12 they get pooled memory. So basically, who f'ing cares it's just another little boost.

#5075751

Elder III

2015-05-20 05:31

Thanks Hilbert, I think understand how HBM works now. I know I didn't before reading this article. 🙂

#5075763

sverek

2015-05-20 06:04

What are the demerits of HBM compared to DDR5?

#5075870

Fox2232

2015-05-20 09:47

Wrote it before, 4GB of vram is enough for me, just bring in The GPU AMD. Once APU gets HBM as L3 cache or any other cache, we are on next level. I can see mobile Zen APU equipped with HBM2 only, to save power and so much space.

#5075921

CK the Greek

2015-05-20 11:00

We need unified RAM tech...(similar to consoles), imagine 16+ of these..

#5081152

Humanoid_1

2015-05-26 21:26

So, I am getting the impression AMD is holding the reigns on HBM and will be able to charge licence fees to NVidia / Intel etc for it's use for years to come? If so this could help give AMD a serious financial boost for years to come helping them become more competative in the R&D field, even though they seem to be doing amazingly well on such a low current budget! ^^

#5081254

Fox2232

2015-05-26 23:13

So, I am getting the impression AMD is holding the reigns on HBM and will be able to charge licence fees to NVidia / Intel etc for it's use for years to come? If so this could help give AMD a serious financial boost for years to come helping them become more competative in the R&D field, even though they seem to be doing amazingly well on such a low current budget! ^^

I do not know what who exactly is holder of IP, since it is AMD+Hynix who made this. But would be nice if AMD got few $ per HBM sold by Hynix.