phosphor112
Banned
Another great find by danhese007. This guy needs thread making privileges!
EDIT: I'll try to tackle what's what...?
1) Is the GNB (Graphics North Bridge) that allows for high instant access using the "Onion", "Garlic", and "Onion+."
2)...maybe still part of GNB?
3)Those extra Asynchronous Compute Engines
4)no idea.
danhese007 said:So Nikkei did an interview with Mark Cerny and apparently they considered using eDRAM in PS4 but they dropped it because while:
"For example, if we use eDRAM (on-chip DRAM) for the main memory in addition to the external memory, the memory bandwidth will be several terabytes per second. It will be a big advance in terms of performance."
"However, in that case, we will make developers solve a puzzle, 'To realize the fastest operation, what data should be stored in which of the memories, the low-capacity eDRAM or the high-capacity external memory?'" he said. "We wanted to avoid such a situation. We put the highest priority on allowing developers to spend their time creating values for their games."
He then states 4 of many bespoke supercharged parts of PS4's architecture.
http://techon.nikkeibp.co.jp/english/NEWS_EN/20130401/274313/?P=2As for the "supercharged" parts, or the parts that SCE extended, he said, "There are many, but four of them are representative." They are (1) a structure that realizes high-speed data transmission between the CPU and GPU, (2) a structure that reduces the number of times that data is written back from the cache memory in the GPU, (3) a structure that enables to set priorities in multiple layers in regard to arithmetic and graphics processing and (4) a function to make the CPU take over the pre-processing to be conducted by the GPU.
EDIT: I'll try to tackle what's what...?
1) Is the GNB (Graphics North Bridge) that allows for high instant access using the "Onion", "Garlic", and "Onion+."
2)...maybe still part of GNB?
3)Those extra Asynchronous Compute Engines
4)no idea.