Linked by Thom Holwerda on Thu 21st Feb 2013 18:18 UTC, submitted by twitterfire
Games Late last night, Sony unveiled the PlayStation 4 - sort of. It's got a custom 8-core AMD x86-64 processor, 8GB of GDDR5 RAM, and a custom Radeon-based graphics chip. It's also got additional chips to offload specific tasks like video (de)compression (livestreaming is built-in!), and there's a large focus on streaming games, but most of it is "an ultimate goal" instead of a definitive feature. It won't play PS3 discs (but will eventually stream many PS3 games), and, while there's some weaselwording involved, second hand games are safe. The biggest surprise? The console itself wasn't shown because it's not done yet. No joke. No price, no release date (other than somewhere before the holidays).
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RE[9]: Not impressive
by viton on Sat 23rd Feb 2013 17:35 UTC in reply to "RE[8]: Not impressive"
viton
Member since:
2005-08-09

192 giga bits per second is a correct value, it's 64bits at 3GHz.
192Gb/s is 24GB/s as I stated.

You can't get to 192GBps total system RAM bandwidth using a single non-custom CPU. All max-out at 96GBps.
I don't understand what you're talking about.
PS4 SoC memory bandwidth is 176GB/s

Where did you get this absurd "96GBps" value? Intel Xeon Phi has 352 GB/s bandwidth (with 16 memory channels @ 5.5GT/s)

edit: Oh I see, you mean top DDR3 bandwidth @ quad channel.

Edited 2013-02-23 17:42 UTC

Reply Parent Score: 2

RE[10]: Not impressive
by JAlexoid on Sun 24th Feb 2013 04:43 in reply to "RE[9]: Not impressive"
JAlexoid Member since:
2009-05-19

192Gb/s is 24GB/s as I stated.

My mistake.

Intel Xeon Phi has 352 GB/s bandwidth (with 16 memory channels @ 5.5GT/s)

Xeon Phi is not a CPU, but a custom coprocessor. And it's using GDDR5!!!

http://www.intel.com/content/dam/www/public/us/en/documents/product...

Reply Parent Score: 3

RE[11]: Not impressive
by viton on Sun 24th Feb 2013 12:25 in reply to "RE[10]: Not impressive"
viton Member since:
2005-08-09

custom coprocessor
It is a generic self-sufficient x86 CPU+SIMD. Board runs on linux.

And it's using GDDR5
Of course it uses GDDR5. I thought it was clear from "16 chans@5.5GT/s" figure. It is designed for fast memory from the beginning.

Reply Parent Score: 2