Sony exec touts strong PS4 launch lineup, talks hardware

Posted by Trent Nouveau

Unlike previous Sony console debuts, the Playstation 4 (PS4) is expected to hit the streets with a "strong" launch gaming lineup.

"The launch lineup for PlayStation 4 – though I unfortunately can’t give the title count – is going to be stronger than any prior PlayStation hardware," PS4 lead architect Mark Cerny told Gamasutra.

According to Cerny, the PS4 differs from rigs and other next-gen consoles as all 8GB of its GDDR5 RAM is fully addressable by both the GPU and CPU.

"If [I had an 8GB PC] the CPU or GPU could only share about one per cent of that memory on any given frame. That's simply a limit imposed by the speed of the PCIe," he explained.

"So, yes, there is substantial benefit to having a unified architecture on PS4, and it’s a very straightforward benefit that you get even on your first day of coding with the system. The growth in the system in later years will come more from having the enhanced PC GPU. And I guess that conversation gets into everything we did to enhance it."

Cerny also commented on the PS4's GPU, although he refused to disclose specific details.

"It's ATI Radeon... Getting into specific numbers probably doesn't help clarify the situation much, except we took their most current technology, and performed a large number of modifications to it," he added.

As TG Daily previously reported, the PS4 is powered by an AMD CPU and GPU. According to reports, the console boasts 8 x86-64 CPU cores, while the GPU is based on the next-gen Radeon graphics engine, capable of 1.84 teraflops of performance power. Because it is an APU, both the CPU and GPU reside on the same physical die, sharing 8GB of GDDR5 memory.

The console is also packaged with a redesigned controller that features a touchpad on the front, a share button, a headphone jack, a light bar for player identification and tech to sense a player's depth and 3D position.