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[Vr-Zone] - Xbox Dev: Xbox One has the answer to PS4′s hUMA technology - Page 6

post #51 of 57
Quote:
Originally Posted by Durquavian View Post

Lacrosse is just mentioning his experience and how he forms his decision. So gotta say any of you that cant get past the Netflix part must be thick or ps4 fanboys. Fact is when it comes to linking all media MS is gonna be the leader hands down aka: WINDOWS. So advantage Xbox one in that respect. As far as coding games question is DX or OpenGL. Dependent on that will tell you how or where from ports will originate. If you wish to argue gaming in ps4 favor you have a valid shot. But if you want to talk outside of gaming and media experience you are gonna have a hard time arguing against Xbox one.

lacrosse should probably just buy a smart tv considering his most compelling argument seems to be that he "doesn't game that much now anyway."
post #52 of 57
Quote:
Originally Posted by perfectblade View Post

lacrosse should probably just buy a smart tv considering his most compelling argument seems to be that he "doesn't game that much now anyway."
Bwahahahahaha!!!!
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post #53 of 57
The Xbox One does NOT have hUMA...it has a unified memory architecture much like the Xbox 360. The developer doesn't know what he's talking about.

Unified = CPU and GPU have their own separate partitions. The CPU can't access the GPU RAM and vice versa.

hUMA = CPU and GPU have their own partitions BUT they can access each others RAM at the same time.

Basically say with the new consoles they have 8GB of RAM. With unified memory both the CPU and GPU have access to the 8GB pool of RAM. So lets say we have 2GB for the CPU and 6GB for the GPU. Both of these sections (2GB and 6GB) cannot be shared.

With hUMA, however, the opposite is true. This is where it is different from unified memory (such as in the Xbox One). Using hUMA and the 8GB from above lets say that the RAM is again split 2GB CPU and 6GB GPU. The difference with hUMA is that the CPU and GPU can access the same blocks of RAM at the same time.

At least this is my understanding of it after some extensive research. So the developer that said that the Xbox One has hUMA is incorrect. Xbox One has Unified Memory, which as explained above is totally different.

The PS4 is the only console that has this. It is a HARDWARE limitation of the Xbox One so it can NEVER support it. hUMA is just one of the many things that Sony worked hand in hand with AMD on to further strengthen their console.

The developer was wrong. When he said the Xbox One support unified memory he is right. Only problem is that unified memory does not equal hUMA.
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post #54 of 57
Quote:
Originally Posted by AndroidVageta View Post

The Xbox One does NOT have hUMA...it has a unified memory architecture much like the Xbox 360. The developer doesn't know what he's talking about.

Unified = CPU and GPU have their own separate partitions. The CPU can't access the GPU RAM and vice versa.

hUMA = CPU and GPU have their own partitions BUT they can access each others RAM at the same time.

Basically say with the new consoles they have 8GB of RAM. With unified memory both the CPU and GPU have access to the 8GB pool of RAM. So lets say we have 2GB for the CPU and 6GB for the GPU. Both of these sections (2GB and 6GB) cannot be shared.

With hUMA, however, the opposite is true. This is where it is different from unified memory (such as in the Xbox One). Using hUMA and the 8GB from above lets say that the RAM is again split 2GB CPU and 6GB GPU. The difference with hUMA is that the CPU and GPU can access the same blocks of RAM at the same time.

At least this is my understanding of it after some extensive research. So the developer that said that the Xbox One has hUMA is incorrect. Xbox One has Unified Memory, which as explained above is totally different.

The PS4 is the only console that has this. It is a HARDWARE limitation of the Xbox One so it can NEVER support it. hUMA is just one of the many things that Sony worked hand in hand with AMD on to further strengthen their console.

The developer was wrong. When he said the Xbox One support unified memory he is right. Only problem is that unified memory does not equal hUMA.
Now I am not sure and gonna go look this up in a sec but Unified means one, right? And the way you explained it was not one but 2 and not unified but separate.
post #55 of 57
Quote:
Originally Posted by Murlocke View Post

Quote:
Still, one thing does stand true: the PlayStation 4 is roughly 50% more powerful than the Xbox One. No one can take that away from Sony.

Honestly the only thing it boils down too. All this other stuff is arguing how much better it is, but the fact still remains it is better and not by a small amount.

Xbox one is a media box with gaming as a secondary focus, PS4 is a gaming console with media as a secondary focus. Their presentation confirmed XB1's development was mostly focused on things that are not games.

Likewise, software just throws in extra latencies. Although you'll get the benefits, it still won't be as performance driven when it's at the hardware level.
post #56 of 57
Quote:
Originally Posted by Murlocke View Post

Honestly the only thing it boils down too. All this other stuff is arguing how much better it is, but the fact still remains it is better and not by a small amount.

This.

Sony focused on the right thing this round. And it's going to pay off.
   
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post #57 of 57
Quote:
Originally Posted by Durquavian View Post

Now I am not sure and gonna go look this up in a sec but Unified means one, right? And the way you explained it was not one but 2 and not unified but separate.

The way I understand it is that unified memory architecture is where both the CPU and GPU have access to the same POOL of memory but don't have access to each others individual part of that pool. So basically if we're using 8GB of RAM and say it's split 50/50 the GPU for instance can't use the 4GB of RAM that's allocated to the CPU.

With hUMA both the CPU and GPU can access the same RAM. So again lets say we're using 8GB and again it's split 50/50. With hUMA the GPU CAN use the 4GB of RAM that's allocated to the CPU. In other words both the CPU and GPU can read/write to the same block of RAM. You can't do this with a unified memory architecture.

This is what makes hUMA unique.

Now as to the developer saying otherwise I simply don't trust this person. He posted his comments in the subreddit which is CONSTANTLY flooded with bullcrap and rumors and lies.

So to me the fact that Marc Diana said HIMSELF that the PS4 is the ONLY console to support hUMA...call me crazy, but I'm pretty sure he knows what he's talking about vs. some random anonymous "game developer".
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