[QUOTE="UpInFlames"]
[QUOTE="S0lidSnake"]No PC has 8GB DDR5 RAM. Not even the newest $900 Nvidia GPU.S0lidSnake
The PS4 RAM is shared, so it's not the same thing at all. You can't compare shared RAM whose resources will be allocated for all tasks with dedicated GPU RAM. Also, the GPU details are incredibly scant. The teraflops count is ok, I suppose, but what does that really tell me? How about giving us the clock speeds of this thing? The exact model/series?
It's hard to directly compare it to a PC even though it is basically a custom PC. On paper, I'd call it a mid-range PC, but in reality it's a dedicated gaming machine which should have higher performance.
When it was rumroed to be 4GB, they had allocated 0.5GB for the OS and other multemedia tasks. Nothing has changed that will add take up more RAM, so even if we assume that 1GB will be reserved for the OS and every other multimedia task, the PS4 has 7GB of DDR5 RAM. That is still more than what's on a $1K Nvidia Titan.
What kind of details are you looking for? It's based on the GCN architecture with 18 compute units running at 800Mhz each. That's down from 1000 Mhz most of their high end laptop GPUs use. They cant give you an exact model because it's custom built for the PS4. The CPU and GPU are on the same die which is something AMD hasn't even put out on PC yet.
They key thing is that they have dedicated processors that handle audio and video encoders, and an additional ARM core that handles background downloading and other background tasks so all the 8 CPU cores and the 18 CPU units are dedicated for gaming and gaming alone. That along with 7GB of dedicated GGDR5 RAM will make it future proof as well.
Being shared doesn't just include OS and multimedia allocation. Even for the games themselves, the available RAM will have to act as both system memory and GPU memory. The allocation will change depending on the game, so you can't claim X amount of RAM is for this and Y for that. That's the whole problem with shared RAM, you don't know how much of it is dedicated for anything.
Also, RAM isn't everything. If the clock speeds are too low, it's going to create a bottleneck making the excess RAM virtually useless.
Are the clock speeds confirmed?
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