PS4
The Original and Basic first model of PS4 comes with AMD Jaguar octa-core processor, 8GB of GDDR5 RAM, and a 500GB or 1TB hard drive. It supports HDR but does not support the 4K version.
PS4 Slim:
The PS4 Slim is the same as the Original version of PS4 standard version, but the key difference is that the PS4 slim is a more compact and slim version, The hardware specification, features and storage 500GB /1TB variations are the same as the standard version of PS4 als few design changes.
PS4 Pro:
PS4 Pro is quite different from the Standard version of PS4 and the PS4 Slim. PS4 Pro is a more powerful, upgraded version of GPU and faster CPU compared with the Standard version of PS4 and PS4 Slim. The Key Difference of PS4 is to experience 4K gaming and better capabilities with the latest version of TV’s. It offers higher frame rates, better graphics and performance.
I have listed the Key difference in a table form where we can compare the difference of the 3 variations of PS4,Slim and Pro.
| Feature | PS4 | PS4 Slim | PS4 Pro |
| Processor | AMD Jaguar octa-core | AMD Jaguar octa-core | AMD Jaguar octa-core |
| GPU | 1.84 TFLOP AMD Radeon | 1.84 TFLOP AMD Radeon | Approx. 4.2 TFLOP AMD Radeon |
| RAM | 8GB GDDR5 | 8GB GDDR5 | 8GB GDDR5 |
| Storage Options | 500GB / 1TB | 500GB / 1TB | 1TB |
| 4K Support | No | No | Yes and also supports 4K video streaming, gaming |
| HDR Support | Yes | Yes | Yes |
| Design | Original design | Slim Design | Enhanced design with additional ports |
| Dimensions | Approx. 275 x 53 x 305 mm | Approx. 265 x 39 x 288 mm | Approx. 295 x 55 x 327 mm |
| Weight | Approx. 2.8 kg | Approx. 2.1 kg | Approx. 3.3 kg |
| Power Consumption | 165W max | 80-100W | 150-180W |
| Enhanced Performance | N/A | N/A | Improved graphics, enhanced gaming |
| PlayStation VR Support | Compatible | Compatible | Compatible |
| USB Ports | 2x USB 3.0 | 2x USB 3.0 | 3x USB 3.1 |
| HDMI Ports | 1x HDMI | 1x HDMI | 1x HDMI 2.0a |
| Ethernet Port | Yes | Yes | Yes |
| Optical Audio | Yes | Yes | Yes |