Mark Cerny: PS4 almost used X1 style architecture. Great Video!

  • 105 results
  • 1
  • 2
  • 3

This topic is locked from further discussion.

Avatar image for SuperNecro
SuperNecro

1423

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#101 SuperNecro
Member since 2005 • 1423 Posts
Also, people should really watch that video. Yes, it's 47 minutes long, but it's so insightful and Mark Cerny is such a wonderful speaker.
Avatar image for BoutDat26
BoutDat26

296

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#102 BoutDat26
Member since 2008 • 296 Posts
Also, people should really watch that video. Yes, it's 47 minutes long, but it's so insightful and Mark Cerny is such wonderful speaker. SuperNecro
Agreed it is.
Avatar image for StormyJoe
StormyJoe

7806

Forum Posts

0

Wiki Points

0

Followers

Reviews: 1

User Lists: 0

#103 StormyJoe
Member since 2011 • 7806 Posts

[QUOTE="StormyJoe"]

[QUOTE="richsena"]

What Cerny said, though, doesn't support your allegation that the Xbox One is actually faster than the PS4's setup. It may be faster than initially thought, but the comparison isn't as linear as in Cerny's presentation because of the different types of RAM being used.

Douevenlift_bro

I never said the XB1 was faster. What I am saying is that the gap between the PS4 and XB1 is less than what people are saying.

No, it's exactly what people are saying. a PS2 VS XBOX type of difference

I think the difference is smaller than that. Most reports put the XBox 4 times as powerful (theoretically) than the PS2. Best case, I think the PS4 is about 33% faster

Avatar image for Mandingo101
Mandingo101

2317

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#104 Mandingo101
Member since 2007 • 2317 Posts
[QUOTE="I_can_haz"]

[QUOTE="tdkmillsy"] Interesting point about the custom audio chips taking load away from CPU in Xbox One. Looking more like CPU performance better in Xbox One and GPU better in PS4. Isn't this the opposite to Xbox 360 and PS3?superclocked

Funny you say that when PS4 has a separate chip to handle UI and Xbone still uses CPU for UI. Fact of the matter is that nobody knows shit about CPU performance at this point and you can't come up with conclusions based on an article.

On the contrary, nearly everyone in System Wars is coming up with conclusions based on articles that they've read. To be perfectly honest, both systems have their advantages.. The PS4's GPU has more shader processing power, more compute units, custom hardware to improve compute performance, more RAM available, and a RAM setup that is easier to develop for.. The XBox One will use less memory bandwidth, due to it's custom texture compression hardware and embedded eSRAM, it has a custom audio chip, the cloud is being used to control the AI in XBox One games, and it has a ton of non gaming features. The XBox One also has Kinect, which takes us one step closer to complete gaming immersion in a 3D world...

ps4 has a custom audio chip as well, and a chip to handle OS. lol @ cloud and kinect.
Avatar image for Syn_Valence
Syn_Valence

2172

Forum Posts

0

Wiki Points

0

Followers

Reviews: 0

User Lists: 0

#105 Syn_Valence
Member since 2004 • 2172 Posts

[QUOTE="magicalclick"]Xbox One has learning curve on esRAM and PS4 has learning curve on high latency GDDR5.BigBoss154

There are no latency issues associated with GDDR5 compared with DDR3. It's just a myth.

There is no latency difference between DDR3 and GDDR5 when you just look at the bare memory chips itself. The latency difference between DDR3 and GDDR5 comes from the different memory controllers and the different scenarios of usage in PCs. DDR3 is usally used for CPUs while GDDR5 is used for GPUs. The main task of GPUs is rendering which requires a lot of bandwidth. GDDR5 is a high performance RAM-type that is able to outperform DDR3 easily in a typical rendering scenario. To make sure that the maximum bandwidth is available most of the time, GPU memory controllers combine many memory accesses to bursts. This is bad for the latency and great for the bandwidth, but since GPUs don't need latency for rendering it doesn't affect performance. CPUs don't need a lot of bandwidth since they're dealing with computing. DDR3 delivers enough bandwidth for any modern day CPU, so GDDR5 would be overkill for computing. The computing tasks of a CPU are are extremely latency-critical. That's why memory controllers for CPUs work in the complete opposite way as GPU memory controllers. Instead of burst accessing the RAM, you'll make sure that every memory access can happen as immediate as possible. This will kill bandwidth but it will have a positive impact on latency which will eventually increase the computing performance of the CPU. What does this mean for the PS4? The PS4 uses a state-of-the-art heterogenous processor architecture from AMD (the so called "HSA") which combines CPU and GPU in one single chip. To ensure that such a heterogeneous processor can deliver maximum bandwidth for rendering and minimum latency for computing, AMD integrates a special DRAM controller. This DRAM controller allows the CPU memory controller to have low latency access while at the same time the GPU memory controller can burst access the RAM. That's why Sony can go for maximum bandwidth with one big GDDR5 RAM pool without having any headaches because of latency.

Then why in gods' name is everyone talking about latency issues, if there is none????........SHUT THE F**K LEMS