Actually I remember reading something about the CPU pre-processing for the GPU so in that case the CPU will be helping with the graphics I guess unless they was only talking about for compute tasks.
PlayStation 4 (codename Orbis) technical hardware investigation (news and rumours)
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Actually I remember reading something about the CPU pre-processing for the GPU so in that case the CPU will be helping with the graphics I guess unless they was only talking about for compute tasks.
loekf
Regular
Google better.
Sony is the #1 producer of image sensors and have a strong market position in image processing DSP. Where do you think those sensors in iPhones, NEX cameras, Nikon DSLRs, security cameras in your street are coming from ?
It's not cutting edge, but think about 40nm/65nm CMOS.
And they are building more fabs...
ShadowRunner
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Cerny also talked about being able to compile a vertex shader two ways, once as a vertex shader and once as a stripped-down preprocessing shader for culling. Both would run on the GPU.
The goal seems to be giving a wide range of options for solving problems.
The goal seems to be giving a wide range of options for solving problems.
I understand that the intention is to have a transparent switch between compute performed on CPU and GPU, so developers can write one set of code and it'd run on both components, allowing the CPU to fill in when the GPU is otherwise busy. That doesn't really mean the CPU is expected to do pre-graphics setup, but, as 3dilittente says, providing flexibility. The choice lies with the developres and if for some reason they want to do triangle setup on CPU and audio and AI on GPU at the same time, they can. I can envisage a scenario where a workload started on GPU might be shifted to CPU to do some more urgent task on GPU and then, if CPU isn't finished, shifted back, meaning the CPU is fully utilised. If possible, that'd be enabled entirely through Sony's software layer and job management system.
Three questions about the ps4.
Does it have enough texture processing ability (other than bandwidth) to properly utilize lets say six gigabytes of textures per frame? (assuming one gig of other data and one gig reserved). If not, what would it need? More ROPs?
What would be the realistic maximum polygon count capable of being produced? Is this count enough to handle all current PC games?
I have read that most systems today or shader bound rather than vertex bound. Does the shader power of the PS4 seem capable to handle any shading called for by mainstream games at 30fps?
Does it have enough texture processing ability (other than bandwidth) to properly utilize lets say six gigabytes of textures per frame? (assuming one gig of other data and one gig reserved). If not, what would it need? More ROPs?
What would be the realistic maximum polygon count capable of being produced? Is this count enough to handle all current PC games?
I have read that most systems today or shader bound rather than vertex bound. Does the shader power of the PS4 seem capable to handle any shading called for by mainstream games at 30fps?
No-one could possibly need six gigs of textures per frame. In practice, you rarely touch more than 50MB of textures per frame.
A lot of ram for textures is not needed per frame, it's needed across frames. Basically, you want a lot of space to be able to provide world areas larger than 10 square feet that you can travel in without loading screens and that are well textured.
Roughly equal to the one provided by a 7850. Yes, it is.
For present games? It's close to 7850 so that's a yes.
french toast
Veteran
Dude I really dont think you seem to get it, despite your best intentions.
No process technology currently on the market or even in the next 2 years from intel, samsung, TSMC, global founderies, or DARPA is going to allow sony to produce a product that you describe and expect to make money out of it.
Period.
I always forget about google... lol!
Seriously though, I thought that the majority ownership in Sony's chip manufacturing capabilities were now with other companies. But you live and learn!
PS3 dropped SACD support. I doubt PS4 will add it back again - it's a dead format.
Prophecy2k
Veteran
SouthAfricanCD?
Super Audio Compact Disc. It and DVD - Audio were vying to be the next-gen audio disk format. They both lost.
Gradthrawn
Veteran
Also i thought that the PS4 won't support the CD format?
Quick and dirty google translate.
Twitter-Source-Japanese
That was clarified some time ago. The optical drive can read CDs just fine. However, they (SCE) have thus far decided not to pay for the CD audio playback license.
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To vinyl, ironically enough.
To mp3, ironically enough.
okay, that's not true. SACD was for the high-end audiophile, and vinyl won there. But it's more dramatic to suggest that next-gen audio was the worst quality rather than the best. 
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