@tormentos:
BOOOOOOO you are starting to bore me. Even when I say something good about PS4 you take to the heart, you are not proving anything besides your lack of reading comprehension and ignorance at this point. I never invent anything you just don't like to accept the truth.
Please explain to me how having the PS4 GPU do most of the work is not good. The gpu does a better job with the gddr5 than the cpu will, by doing so the bandwidth is not compromised.
I said it once and I'll say it again Cerny said "recommended" balance is 14 no one said it was definitive.
PS4 gpu is faster xbox one cpu is faster was my point. And those onion and garlic buses you keep touting about on the PS4 the XB1 has those also fyi.
yep the dev was kissing M$ ass because he said the ps4 gpu was more powerful than the xb1 gpu, but said the xbox one cpu was better than PS4. That sounds like a pretty unbiased and true statement coming from a developer making a game across 3 platforms.
Yea Sony delivers improvements but the fact remains Cerny is no dummy. He had to know that with GDDR5 the weak cpu would struggle which is why Sony built the PS4 with gpgpu in mind to help free up the cpu.
Pease show me where I said Xb1 could do gpgpu without using the gpu? You are just lying now to make yourself look good, how can you do gpgpu without a gpu?
Dude I think you are butthurt because of the improvements and good news coming from M$ of lately. How come you aren't in the threads about Uncharted 4 not being 60fps like ND said their where aiming for all games this gen?........
You claim all the improvements that the ice team can make but it's still not happening as fast as the improvements on the Xb1. Xb went from 720p to 1080p, 45% reduction in ram used, and the OS can be ran and fully functioning off of one core. Comeback when ps4 can do all of that and play online while having Netflix, Hulu or Amazon prime snapped, or even leave a game for days and constantly be using the PS4 for tv and internet browsing and suddenly decide to start playing your game and pick up right where you left off 4 or 5 days later, all on one core.
The slide comes from a technical presentation of the Sony PS4 system and as such, it must be treated with the utmost caution. However, from what I can see, if there is one thing you cannot deny, its that the effective/usable/actual (whatever you want to call it) bandwidth available to the Pitcairn GPU of the PS4 is 120GB/s to 140GB/s. By this I mean the actual bandwidth available to the developers to play with......
So option 1 that we have is that the graph is incorrect or skewed due to an unknown factor, however because there are actually 4 samples present, I am don’t think that’s the case. The second option is that the memory clock is wrong and the last option being the Bus being wrong. Now needless to say, the bus being wrong is quite improbable. Reversing the previously used equation we get [(140x1000x8)/256 = 4375Mhz] and [(120x1000x8)/256 = 3750Mhz]. This is now beginning to make some semblance of logic. The memory appears to be down clocking as the CPU usage increases and this is where the ”disproportionate” part comes into play. Theoretically as the APU varies between CPU intensive and GPU intensive tasks the bandwidth should remain the same, 140 in this case. But it doesn’t. The total bandwidth of the system actually drops to as much as 120 GB/s and more if the trend continues. If you take a look at the graph you will notice that the CPU bandwidth is actually null in the bar where the GPU bandwidth is highest. Since this is a realistic impossibility, even with very low usage you are looking at about 135GB/s of Bandwidth at max. This is a very interesting development and is probably the result of the fact that at the heart of the PS4 is an APU.
here' another link if you don't believe that one:http://techgadgetnews.com/2014/09/21/sony-ps4-effective-gpu-bandwidth-is-140-gbs-not-176-gbs-disproportionate-cpu-and-gpu-scaling/
176 is the theoretical bandwidth just like 218 is the theoretical bandwidth for Esram.
and regarding parallel processing this is what my article said about Sony:
It must be noted that we are not sure whether the PlayStation 4 follows a similar implementation as the Xbox One. It will be rather intriguing to know how the PS4 reduces latency during CPU-GPU exchange.
Log in to comment