This sounds to good to be true? Can anyone shed some light on this?
Years ago, before game developers used a render sort order on their geometry, PowerVR came up with a chip that would transform all the geometry for a frame, store it and analyze it one 'bin' at a time to see what was visible and what wasn't to figure out what should be drawn to the screen. In overdraw heavy situations without software side sorts this could offer incredible performance compared to its' raw specifications. Handling rendering in this fashion also would now allow MSAA for nigh no performance hit. All sounds great, until you dig into it a bit more.
First thing is z culling, all current hardware supports it, and developers now support render sort order to maximize its' effectiveness. This
greatly reduces the advantage that TBDRs have over IMR(Immediate mode rendering- everything nV and ATi). Then you have their long standing history of having problems with large amounts of geometric data(where to store it all out, read/write thrashing from having to reduce the pixel size per bin etc). Another huge factor is that the amount of die space dedicated to basic rasterization is shrinking at a very fast pace. The amount of shader hardware on current GPUs makes the potential die area savings one of a relatively moderate percentage when looked at as a whole part, not the x00% you see spoken of by advocates of the technology.
Pretty much, the only people you will see really thinking that this would be anything other then a terrible idea are those that either work for PowerVR, or are fans of this odd ball technology. It exhibits tons of issues in games frequently, the driver file for their last PC parts was almost entirely made up of game specific settings in order to get most of the stuff to render properly most of the time. Obviously this rumor is about a console, not a PC part, but it would make porting issues a big factor.
Kyro2 used to outperform the Geforce2 when using 32Bit and 4x FSAA
In some games, if they had the right driver profile and if they worked properly. I ran both a Kyro2 and a GeForce2, the GeForce utterly throttled it as an overall gaming solution, it wasn't remotely close.
So rumors of it being used in next gen portable gaming devices (Sony PSP, Gameboy, maybe a MS released portable) is not farfetched.
This is what really makes this entire thing utterly laughable for anyone who follows the industry. Sony is going to use a device designed for two year old cell phones in their next gen console? Seriously? Noone should buy this at all. PVR may end up providing the graphics chip for the PS4, but it certainly won't be a two year old cell phone graphics chip.
When the Xbox was launching, Microsoft was afraid that people would think it was a computer and not a game console and not buy it if they were shopping for a console. It's a bit ironic that the current generation Xbox 360 and PS3 are closer to PCs than any other console generation.
You think so? I'm not seeing it. I thought the Famicom with DD was far more PC like then what we have today.
As far as I know there were some datacenters who bought playstations en masse for exactly that reason.
The Navy or Air Force just bought a couple thousand PS3s because they needed a supercomputer and the PS3s were by far the cheapest way to get one.
It'd be hard to keep the cost under control if every other part is outsourced. (Remember the MS-NV drama over XBox price cut?)
License the IP and tie it into royalties. This is what Sony is doing now, you have a clearly defined cost. MS screwed up because they agreed upon a chip price point for a given volume, they didn't hit the volume numbers they agreed upon so nV wouldn't drop their prices. Sony signed a smarter deal then MS did, will work out much better for them and nV long term by the looks of it.
To best sum up where PVR is right now, they are being bested by nVidia's
1 watt chip, that is PVR's highest end offering. Saying they are going to displace ATi or nVidia for the design win in the PS4 at this point is absurd. Oh, BTW- at this point in time the PS3 was supposed to be all Larrabee like and be using a second Cell to render all the graphics without a GPU at all, Sony has been known to make quite a few changes to their platform in the 2-3 years leading up to launch
