Richard Leadbetter on the OS:
"So with the PS4 hardware specs mostly done and dusted, the only real questions remaining concern the CPU and RAM resources swallowed up by the operating system. Guerrilla Games' recent post mortem of its Killzone: Shadow Fall PS4 reveal demo suggests that two CPU cores are reserved for the OS (something we're told could change but remains the current working allocation), but the amount of GDDR5 required by background processes remains unknown. What we do know is that 512MB was the target during the time that PS4 was slated to ship with just 4GB of system RAM, with current murmurings suggesting that has doubled to 1GB. At the same time, the Guerrilla post mortem contains a memory map with around 3GB of "spare" memory which could be occupied by the OS. One theory - yet to be confirmed - suggests that the game DVR - which records footage as you play - may be writing to a RAM disk, saving on hard drive bandwidth. 15 minutes of 1080p h.264 video could swallow up anything up to 1GB of RAM, but some might say that it would be something of a waste to utilise high performance memory on an application like this that would require at most around 2MB/s of bandwidth (PS4 GDDR5 tops out at 176GB/s)"
"So with the PS4 hardware specs mostly done and dusted, the only real questions remaining concern the CPU and RAM resources swallowed up by the operating system. Guerrilla Games' recent post mortem of its Killzone: Shadow Fall PS4 reveal demo suggests that two CPU cores are reserved for the OS (something we're told could change but remains the current working allocation), but the amount of GDDR5 required by background processes remains unknown. What we do know is that 512MB was the target during the time that PS4 was slated to ship with just 4GB of system RAM, with current murmurings suggesting that has doubled to 1GB. At the same time, the Guerrilla post mortem contains a memory map with around 3GB of "spare" memory which could be occupied by the OS. One theory - yet to be confirmed - suggests that the game DVR - which records footage as you play - may be writing to a RAM disk, saving on hard drive bandwidth. 15 minutes of 1080p h.264 video could swallow up anything up to 1GB of RAM, but some might say that it would be something of a waste to utilise high performance memory on an application like this that would require at most around 2MB/s of bandwidth (PS4 GDDR5 tops out at 176GB/s)"
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Thank you. The recess and the overall matte appearance hid it quite well, or maybe it's simply the way these early pics were shot, I dunno.
