[QUOTE="ronvalencia"]
Background workloads such as downloads and video encoding/decoder. Are you claiming the ARM chip includes it's own GPU?
From http://www.neogaf.com/forum/showpost.php?p=52024563
Cerney: The PS4 has a dedicated encoder for video sharing and such. There are a few dedicated encoder and decoder functions which are available and use the APU minimally. This is also used for playback of compressed in-game audio in MP3 and audio chat.
No indications for Mali or PowerVR type GPU.
PS; There's are differences between a DSP and a GPU.
AMD GCN has a separate module for video encoding/decoder i.e. AMD Video Codec Engine (VCE) and AMD UnifieD ViDeo DecoDer(UVD).
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My laptop has two GPUs i.e. Intel HD 4000 and AMD Radeon HD 8870M. Intel HD 4000 is use for lighter GPU workloads (equalvent to Radeon HD 4650M levels) while AMD Radeon HD 8870M is use for heavy GPU workloads. For display, AMD Radeon HD 8870M's render results are piped into Intel HD 4000.
Both Intel HD 4000 and AMD Radeon HD 8870M handles foreground workloads i.e. they are both display processors.
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For "Mark also said they do something similar with the CPU having both north- and south bridges to relieve any background processing strain" statement, what sluff is this?
SoC (Sytem on Chip) includes north and southbridges e.g. AMD Temash SoC (for tablets and netbooks/ultrabooks) includes both north and southbridges.
As for PS4...
Cerny: The second custom chip is essentially the Southbridge. However, this also has an embedded CPU. This will always be powered, and even when the PS4 is powered off, it is monitoring all IO systems. The embedded CPU and Southbridge manages download processes and all HDD access. Of course, even with the power off.
Nothing here that shows a hybrid dual GPU setup.
tormentos
And here we go again.
Did Cerny say there that the ARM CPU will do the encoding and decoding.? No he say the PS4 has different encoders for video sharing,he did not say it will be the ARM CPU.
And just so you know on December 2012 sony file for this little patent..
DYNAMIC CONTEXT SWITCHING BETWEEN ARCHITECTURALLY DISTINCT GRAPHICS PROCESSORS
AbstractGraphics processing in a computer graphics apparatus having architecturally dissimilar first and second graphics processing units (GPU) is disclosed. Graphics input is produced in a format having an architecture-neutral display list. One or more instructions in the architecture neutral display list are translated into GPU instructions in an architecture specific format for an active GPU of the first and second GPU.
http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1=%2220120320068%22.PGNR.&OS=DN/20120320068&RS=DN/20120320068
OH oh Ron apparently that second ARM chip also has a GPU,going by this patent from sony.
I don't see why this would sorprice you, those socs are ultra cheap and they are produce on the millions and millions for cell phones,now a CPU alone would not do much,but even a mali or Power VR will do allot of things acelerated.
And the PC vs PS4 comparison again.? Don't you get tire the PS4 is not your laptop.
LOL, You still got LZ decoder (for blu-ray loading) wrong.
I'm aware of the said patent i.e. I made comments on it in the past.
Your patent link still doesn't show the PS4 has a secondary GPU i.e. companies files countless patents.
Cerny hasn't stated any secondary GPU for PS4 i.e. only specified a secondary ARM based CPU.
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PS; The hermits has covered Sony's dissimilar dual GPU patent topics with NVIDIA's Optimus and DirectX. http://au.gamespot.com/forums/topic/29333330/ps4-may-include-gpu-switching-technology-according-to-new-sony-patent
http://www.gamasutra.com/view/feature/191007/inside_the_playstation_4_with_mark_.php?page=3
"For example, by having the hardware dedicated unit for audio, that means we can support audio chat without the games needing to dedicate any significant resources to them. The same thing for compression and decompression of video." The audio unit also handles decompression of "a very large number" of MP3 streams for in-game audio, Cerny added.
.........
There's also another custom chip to put the system in a low-power mode for background downloads. "To make it a more green hardware, which is very important for us, we have the ability to turn off the main power in the system and just have power to that secondary custom chip, system memory, and I/O -- hard drive, Ethernet. So that allows background downloads to happen in a very low power scenario. We also have the ability to shut off everything except power to the RAMs, which is how we leave your game session suspended."
Still no indication for secondary GPU.
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