Sony makes the PS4 more powerful by unlocking an extra CPU core

How much difference it'll make however, remains to be seen

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Everything You Need To Know About The PS5

PS4 developers can now access more of the system's CPU power

Rumor: Sony unlocks PS4's seventh core to boost performance

Which was a bigger improvement, the PS2 from the PS1, the PS3 from the PS2 or the PS4 from the PS3? And which was the smallest improvement? - Quora

Sony PlayStation 5: PS5 - Best Buy

Sony unveils version 2.0 of PlayStation 4 OS, biggest update yet - Neowin

Sony unveils PS4 Pro, a powerful console with 4K and HDR support » YugaTech

PS4 Pro vs Xbox One S - which is the best console

The ultimate home entertainment center starts with PlayStation. Whether you're into gaming, HD movies, television, music, or all of the above, PlayStation offers something great for everyone.

Sony PlayStation 4 Limited Edition Uncharted 4 Bundle - 500GB