[SOLVED] Is my new system good ??

[RyukKanji]

So i have been into gaming for a long time , specially fortnite the thing is that i have while i play either huge fps drops or really low fps , i posted another thread about this and they suggested me this build ( keep in mind i am from greece and i shop my parts from skroutz.com )
My current specs are these :
Operating System
Windows 10 Pro 64-bit
CPU
AMD FX-4300 18 °C
Vishera 32nm Technology
RAM
8,00GB Dual-Channel DDR3 @ 669MHz (9-9-9-24)
Motherboard
ASUSTeK Computer INC. M5A78L-M LX3 (AM3R2) 42 °C
Graphics
22EN33 (1920x1080@60Hz)
2048MB ATI AMD Radeon R9 200 Series (Sapphire/PCPartner) 39 °C
Storage
465GB Seagate ST500DM002-1BD142 ATA Device (SATA ) 33 °C
Optical Drives
ASUS DRW-24D5MT ATA Device
Audio
Συσκευή ήχου USB
and they suggested me i swap to these parts :
https://www.skroutz.gr/s/10985105/G-Skill-TridentZ-RGB-16GB-DDR4-3000MHz-F4-3000C16D-16GTZR.html
https://www.skroutz.gr/s/18161198/Asrock-B450M-HDV-R4-0.html
https://www.skroutz.gr/s/11139198/AMD-Ryzen-3-1200-Box.html
https://www.skroutz.gr/s/11542607/Corsair-CX-Series-CX450.html
Keep in mind my goal is to have 80-100 stable fps in stacked lobby games and i have a budget of 250-300 euros
i also have a few questions
1)is it gonna be able to reach 80-100 stable fps ?
2) is the psu enough?
thanks for any help and keep in mind pls make the posts easy to understund cause i am a bit newbie in terms of hardware

 

[01swodniW]

It sounds like your CPU is bottlenecking (holding back) your GPU in terms of performance. I would try downloading MSI Afterburner and using the on screen display feature while gaming to see what components are being pushed the most.