[quote name='8bitArtist']needs more memory[/QUOTE]
Negatice. "4GB GDDR5" That's some fast memory, and if only 512MB is reserved for the OS, that's 3.5GB for games. More than enough if games will be rendered in 1080p60fps (and possibly 3D). If I read correctly, GDDR is specifically tailored for gaming performance, while DDR3 is suited for PC performance. Simply put, GDDR5 has far more bandwidth/speed versus DDR3.
Assuming Sony can pack the entire OS into 512MB (should be no problem), 3.5GB of GDDR5 memory is more than enough for games. On the PC gaming side, most 1GB cards can support 1080p, just to give you an idea of the amount of memory needed.
MY concern is the 1.6GHz clock. Yes, there are 8 cores, but I would have liked at least 1.8-2.0GHz. It may not seem like much, but at the very least, 1-2 of those cores are likely going to be reserved for OS tasks. Really excited to see what ultimately gets announced
[quote name='Thongsy']Umm that's not on the graphics card. That's the system memory like in your computer. Iirc both the PS3 and X360 have 1GB of ram but the PS3 reserves half to the OS currently. 4GB sounds fine to me but then again most people put in 8 gb into their system now at the minimum so hopefully if specs are true that doesn't come back to bite them in the ass like it did on the PS3.[/QUOTE]
The PS3 and 360 both have 512MB MAX. The 360 uses...around 30MB maybe? I haven't seen an article lately regarding it, I'm pretty sure it's around 30MB. That leaves roughly 482MB for developers to use (plus 10MB of eDRAM). The PS3 also has 512MB, however, its memory is split into 256MB of XDR RAM for the CPU, and 256MB of GDDR3 RAM. THe OS uses around 40-45MB I believe. So 512MB for the OS on the PS4, with 3.5GB for games is more than enough.