The PS4 is a great console, It has a CPU with 8 little cores that achieves a Core I3 like multithreading performance, a nice 18 core shader graphic card derived from Radeon HD 7870-7850 that gives 1,84 Tflops and 8 GB of DDR5 with 176 GB/s of Bandwith. With these specifications it can run almost every game at 1080p 30 FPS. It could have been a little more powerfull, but its enough for 1080p mantaining a good console size and power consumption.
Now, what do you think the next PS5 will bring us in terms of hardware specifications? I think next gen console should be able to handle at least 4k Resolution at 30 FPS to take advantage of new TVs. What do you think should be the capabilities and hardware of the next sony console if it comes arround 2019-2020 to convince you to buy it?
2019 would be the latest I think it might come out (Expect sooner). But when it does I would expect:
-Something like an R9 770X or whatever would be like 8 times stronger than the 7870 in the PS4
-16 or 32GB of HBM memory bringing the bandwidth to 1 or 2 TB/s
-An 8-core CPU clocked at 3 - 4.0 GHz with much better IPC than the PS4's cpu, and a second quad-core cpu for background tasks.
-Full backwords compatibility with the PS4.
-Expect the PS5 to perform as well at 4K as the PS4 does at 1080p now with the obvious advantage of much better effects/AI/Physics. 60 FPS should also be at least decently easier for the PS5 to do than it is for the current consoles (Due to the faster CPU and RAM).
-Possibly a 1 TB SSD for fast load times. Expect at least a hybrid solution.
What makes you think that's enough to do 4K at 30fps? Thats a 4x increase in resolution, while ps4 already has trouble maintaining 30 fps with a 2.25 increase in resolution.
I hope you're right because by 2019 I'll be all 4K, yet my gut tells me there will be another gen of upscaling 1440p/1600p before we get native 4K.
32GB memory sure, memory is not that expensive. 1TB SSD nah, easiest to keep the cost down by including a cheap HDD. Somehow I also expect to see a 16 core CPU before going back to 3-4 Ghz. More focus on GPGPU as well.
-PS4 has no trouble with 1080p when utilized properly. The sad truth is some developers are lazy, and/or aim for stupid goals. (This is a debate in itself).
-8x a 7870 would be roughly equal to two 295X2's. One 295X2 easily runs any game out now in 4K so I find it hard to beleive that something twice as strong as that would have much trouble even with the more demanding games of the future. I didn't say it would max out every game, but high-Ultra settings is almost gaurunteed given what we know (Which is all we can speculate on now anyways).
-There may be some upscaling, but it will be from 1800p if anything.
-People forget that 8GB of RAM is far more than enough now. 16GB should still be plenty for the future, and HBM is more expensive than GDDR5. But who knows what the future will hold.
-I don't see the point in 16 cores. Games are just now starting to use 6-8 cores and quad cores are still 90% the standard. Fewer, faster cores would be easier to program and allow for higher framerates. People forget that the CPU's in todays consoles are not AT ALL weak, but they are not fast enough to easily do 60 FPS. They can handle a lot of data at one, but they cannot move it very fastly.