GDDR5 8GB RAM

[ethomaz]

davygee said:
This to be honest was a shock for me as all reports were looking at 4Gb RAM. With regards to MS, we all assume they already have 8GB DDR3 RAM setup for the 720. But isn't it rumoured that 2-3Gb of that is earmarked for the OS, which is rumoured to be a version of Windows 8. Also if MS was to try and up the specs of their RAM amount, surely they are limited to what they can fit on the board...assuming there are only 2 slots for RAM....so it would surely need to be 8GB or 16GB?

Slots? That's not a PC motherboads... the RAM is fixed into the board... no slot... Sony seens to use 16 chips of 512MB memory (the biggest chip for GDDR5 in the market) to reach 8GB GDDR5.

Just to explain the actual chip of RAM found in PC have a lot of chips into... it's a group of chip.

For exemplo the image below have 8 chips of DDR3 RAM.

Now the Wii U board... 4 chips of 512MB DDR3 on the board (2GB total).

 

Sony will use 16 chips of 512MB GDDR5 (8GB total) because that's the biggest GDDR5 chip but Microsoft can use 8 chips of 1GB DDR3 to reach the same 8GB because DDR3 have chips bigger than 512MB for example.

Anyway GDDR5 and DDR3 are completaly diferent kinds of memory... and GDDR5 is difference from DDR5 too.