How the PlayStation 4 is better than a PC

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Sleepingforest

Platinum Member
Nov 18, 2012
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Right, but you are only considering GPU <--> VRAM. If you consider also GPU <--> RAM, then the overall bandwidth is superior on the PS4.

Yeah, but how often do games do GPU <--> RAM interactions?

I'll give you a clue: not during normal operation, and not before you hit multi-monitor setups. It takes something like heavily modded 1080p Skyrim or a 5760*1200 setup to actually use more than 3GB VRAM. Even then, the next generation of graphics cards are already reaching to 6GB of VRAM--about as much as the PS4 could have available after the CPU calculations and OS take their share.
 

HeXen

Diamond Member
Dec 13, 2009
7,832
38
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Yea... we should speculate about the GTX580 or HD5970!
On topic:
Consoles are for the masses - for average Joe. It needs average performance of tomorrow, which is not equal "better than SLI titan rig". Of course "PC" will be better than PS4.
PCs are flexible, there are ways to outpower a console, by trowing money at your computer. You can always build 3xTitan or 2xi7. But one sane person should ask himself: "For what cost?"
Overthetop consoles (360/ps3) failed. Developing const was so high that the lifespan of a console had to be so long... They came up with innovating GPU in 360 which was than imported to desktop market. Which ended badly for consoles due to higher (no?) power draw limitations in PC hardware.

Which does very little if a developer doesn't make any use of all that hardware. Like driving a 600HP car down your driveway to get your mail. Talk about outpowering.
 

toyota

Lifer
Apr 15, 2001
12,957
1
0
These new 20nm AMD cards should obliterate ps4
yeah and they should be out not long after the PS4 launches. I think all the PS4 is going to do is match current pc games and settings if lucky. by the time they can squeeze all the potential out of the PS4, it will be so far behind that we will look back and laugh at this thread. again I think phones and tablets will catch up to the the PS4 cpu about half way through its cycle.
 

notty22

Diamond Member
Jan 1, 2010
3,375
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0
Sony is really hyping that controller. Yawnz. I'd like to read about some kind of faster game loading sauce. Turn on to playing in 30 seconds or something interesting.
To bad, they can't implement a hybrid HD or a tiny SSD for caching.
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
yeah and they should be out not long after the PS4 launches. I think all the PS4 is going to do is match current pc games and settings if lucky. by the time they can squeeze all the potential out of the PS4, it will be so far behind that we will look back and laugh at this thread. again I think phones and tablets will catch up to the the PS4 cpu about half way through its cycle.

What could they have done differently though to prevent this? Maybe if they had a time machine and shot ten years into the future and brought tech back with them? You know whaqt they say about trying to future proof anything. :\

Hopefully it'll allow for real improvements in fidelity. Finally, DX11 games instead of Dx9 games that are patched up for PC. Hopefully no more performance killing features with little or no improvements to visuals or physics just so users can't "max out the game" on current hardware, so they'll buy something new.

I'm excited about there finally being a new generation of consoles. That will do more to advance gaming than anything on the PC can. Also pretty impressed by the level of performance from an APU.
 

toyota

Lifer
Apr 15, 2001
12,957
1
0
What could they have done differently though to prevent this? Maybe if they had a time machine and shot ten years into the future and brought tech back with them? You know whaqt they say about trying to future proof anything. :\

Hopefully it'll allow for real improvements in fidelity. Finally, DX11 games instead of Dx9 games that are patched up for PC. Hopefully no more performance killing features with little or no improvements to visuals or physics just so users can't "max out the game" on current hardware, so they'll buy something new.

I'm excited about there finally being a new generation of consoles. That will do more to advance gaming than anything on the PC can. Also pretty impressed by the level of performance from an APU.
nothing they can do as no matter what they go with it will be static while the rest of the world makes progress. and as already mentioned they are actually starting off even farther behind then the last gen consoles. a console it what it is and its laughable to see some people thinking its some magical machine from the future that will blow computers away for years to come. like many people, I will only buy it for the exclusive games. I will also wait until they have slim version just like I did for the PS3 and 360.
 
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futurefields

Diamond Member
Jun 2, 2012
6,471
32
91
Hopefully no more performance killing features with little or no improvements to visuals or physics just so users can't "max out the game" on current hardware, so they'll buy something new.


Let's get real. They need you to keep buying stuff every couple years. So no, none of that is going to change.
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
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Let's get real. They need you to keep buying stuff every couple years. So no, none of that is going to change.

I'm just hoping that they'll have real improvements that you'll need better hardware for. So, they don't have to resort to the BS to get our money from us.
 

Aikouka

Lifer
Nov 27, 2001
30,383
912
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No. Definitively it is superior from a hardware point of view. As stated before Sony had an asynchronous compute vision for the next gen games and they found that such games could not be delivered using a traditional PC architecture due to its bottlenecks and limitations. Then they designed what they call supercharged PC architecture.

Yet again, you simply retreat back to the Fortress of Parroted Points. I am talking specifically about how that article immediately latched onto a sensationalist point that CPU memory bandwidth is too low in modern gaming PCs, and that is simply not the fact. It simply flat out says that in the PS4, the CPU gets the faster stuff.

Since you like to talk about GPGPU a lot, here are some questions:

Even though the PS4 may be faster at accessing CPU-generated memory, is it actually faster at performing the computations?
Will the hUMA do much more than make GPGPU easier to code for? (i.e. avoiding trying to bounce between the CPU and GPU for different tasks.)
Does the PS4 actually have hUMA?

The latter one is really based off the fact that no one has ever flat out stated that the PS4 uses AMD's newly-announced hUMA. I recall there being some Sony guy that stated that the PS4 would have unified memory, but that's about it. It would make sense for the PS4 to have hUMA, and I would probably bet that it does, but are we really 100% solid?

Right, but you are only considering GPU <--> VRAM. If you consider also GPU <--> RAM, then the overall bandwidth is superior on the PS4.

Like I said above, going from DDR3-1333 to DDR3-2133 makes almost no difference in gaming even though the actual transfer rate is 70% higher.

http://en.wikipedia.org/wiki/DDR3

Keep in mind that most modern PCs use dual channel DDR, which means the numbers are doubled as those are per channel.

http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3/6
 

Sequences123

Member
Apr 24, 2013
34
0
0
Like I said above, going from DDR3-1333 to DDR3-2133 makes almost no difference in gaming even though the actual transfer rate is 70% higher.

It would make very little difference if that memory is not used for the game. Why do you think GPU's have dedicated memory on the PCB?
 

3DVagabond

Lifer
Aug 10, 2009
11,951
204
106
People keep bringing up that the memory and pci buses aren't saturated on PC's, but that's not where the reported improvements are coming from.

If you have a highway that's 4 lanes wide and all traffic on it doesn't saturate the 4 lanes then adding more lanes won't speed up the flow of cars. There are ways to speed up the commute though. Shorten the distance traveled and make the means to get onto the road more efficient. FWIU, this is what the PS4 does.
 

AnandThenMan

Diamond Member
Nov 11, 2004
3,949
504
126
Shorten the distance traveled and make the means to get onto the road more efficient. FWIU, this is what the PS4 does.
From what I've read, the CPU/GPU can directly share data, even bypassing the CPU cache. This is something a standard PC has no hope of competing with obviously. I'm sure there are other tricks the PS4's APU has up its sleeve that we don't know about as well.
 

BallaTheFeared

Diamond Member
Nov 15, 2010
8,115
0
71
Hopefully someone gets a real OS on a box so we can see just what these gains are in a real world situation.

I haven't noticed AMD promoting performance gains with their marketing, what I've been seeing has been more ease of coding stuff. Perhaps I'm just not looking hard enough, but the only place I'm aware of where big performance gains are possible has been in the forums.
 

Aikouka

Lifer
Nov 27, 2001
30,383
912
126
I hate to support a certain poster, but:
http://www.legitreviews.com/article/2106/6/
When the GPU is sharing that same DDR3, yes, it will make a difference. The CPU doesn't need more bandwidth, but the GPU can utilize it.

I know. Keep in mind that I've had to reiterate that point, so I left off the caveat, which was there the first time that I mentioned it:

They seem to be suggesting that there's a problem with the CPU having less bandwidth. The fact of the matter is that there isn't a problem unless you're encoding or using an APU. We're talking about gaming and discrete cards, so it doesn't matter.
 

galego

Golden Member
Apr 10, 2013
1,091
0
0
nothing they can do as no matter what they go with it will be static while the rest of the world makes progress. and as already mentioned they are actually starting off even farther behind then the last gen consoles.

When the PS3 was released it was behind PCs in GFLOP, but outperformed them for years.

a console it what it is and its laughable to see some people thinking its some magical machine from the future that will blow computers away for years to come.

See above.
 

toyota

Lifer
Apr 15, 2001
12,957
1
0
When the PS3 was released it was behind PCs in GFLOP, but outperformed them for years.



See above.
how the hell did it outperform them for years? it ran most games at 30 fps and sub 720 and even then did not always deliver smooth performance.
 

Tuna-Fish

Golden Member
Mar 4, 2011
1,422
1,759
136
When the PS3 was released it was behind PCs in GFLOP, but outperformed them for years.

BS. At PS3 release you could build a PC with a Conroe and a 8800GTX. That's good enough to outperform PS3 at everything, and basically play all crossplatform titles at twice the res.

PS3 has never outperformed a top-level PC.
 

galego

Golden Member
Apr 10, 2013
1,091
0
0
Yet again, you simply retreat back to the Fortress of Parroted Points. I am talking specifically about how that article immediately latched onto a sensationalist point that CPU memory bandwidth is too low in modern gaming PCs, and that is simply not the fact. It simply flat out says that in the PS4, the CPU gets the faster stuff.

And you continue picking out a pair of phrases from the article and calling it sensationalist, when what says is 100% true. The PS4 has a architectural advantage here over a traditional PC design in modern gaming PCs.

Since you like to talk about GPGPU a lot, here are some questions:

Even though the PS4 may be faster at accessing CPU-generated memory, is it actually faster at performing the computations?

They added an another bus to the GPU that allows it to read directly from system memory or write directly to system memory, This eliminates another bottleneck from the system.

Will the hUMA do much more than make GPGPU easier to code for? (i.e. avoiding trying to bounce between the CPU and GPU for different tasks.)

As stated before hUMA improves performance as well:

On current AMD and Intel APUs the CPU and GPU have separate memory blocks. So for the GPU to do some processing it requires the appropriate data to be copied from the CPU memory to the GPU memory, and back again once the processing is finished. This creates a severe bottleneck in performance and greatly increases complexity for programmers.

By unifying the two blocks of memory and allowing the CPU and GPU to directly access the same data the performance overhead of copying all the data is eliminated and programming complexity is greatly reduced.

http://www.bit-tech.net/news/hardware/2013/04/30/amd-huma-heterogeneous-unified-memory-acces/1

Does the PS4 actually have hUMA?

The latter one is really based off the fact that no one has ever flat out stated that the PS4 uses AMD's newly-announced hUMA. I recall there being some Sony guy that stated that the PS4 would have unified memory, but that's about it. It would make sense for the PS4 to have hUMA, and I would probably bet that it does, but are we really 100% solid?

Yes it has hUMA. Sure 100%? No. I am not sure 100% about anything. I am not even 100% sure that the PS4 will have jaguar cores @ 1.6 GHz.

Like I said above, going from DDR3-1333 to DDR3-2133 makes almost no difference in gaming even though the actual transfer rate is 70% higher.

http://en.wikipedia.org/wiki/DDR3

Keep in mind that most modern PCs use dual channel DDR, which means the numbers are doubled as those are per channel.

http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3/6

I think I already recalled before that they designed the PS4 hardware for next gen games. Benchmarks on a Ivi Bridge (which is essentially insensitive to ram speed) with older games says nothing.

I could play donkeybas and check that GPU performance is irrelevant. Would I obtain the conclusion that discrete GPUs are not useful? No. The conclusion would be that old game does not use the possibilities open by a modern discrete GPU.
 

galego

Golden Member
Apr 10, 2013
1,091
0
0
I haven't noticed AMD promoting performance gains with their marketing, what I've been seeing has been more ease of coding stuff. Perhaps I'm just not looking hard enough, but the only place I'm aware of where big performance gains are possible has been in the forums.

AMD slides talk about performance gains provided by hUMA.
 
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