New graphics card but not max performance

[L33F]

Hello,

I just bought the 1660 ti (gigabyte gtx 1660 ti gaming oc 6g) I put it in my pc and it worked fine. I already have done DDU for the fresh drivers.

I just started playing my games on my new card and it was not what I am expected, it was lower then people said and people have got on youtube.

A man on youtube with the same specs as me has in fortnite like 110-130 fps on epic, and I have got like 50-90 fps on epic but we have the same specs?? (he has nothing overclocked)

my temperatures are good my GPU is with nothing do 40 degrees and while gaming around 60/70 degrees - CPU is with nothing do 32 degrees and while gaming around 50 degrees

I know something is wrong but I don't know what, can somebody help me? (I don't have overclocked something)

 

specs:

CPU: Intel Core i5-8400 2.80GHz
MOTHERBOARD: Gigabyte H310M H
RAM: single-channel crucial 8GB 2400mhz
GRAPHICS CARD: Gigabyte GTX 1660 TI Gaming OC 6G
POWER SUPPLY: 650 watt
STORAGE 1: SSD KINGSTON 240GB
STORAGE 2: HDD TOSHIBA 2TB
CASE: Sharkoon skiller sgc1 blue window
OPERATING SYSTEM:  Windows 10 Pro

[5x5]

Download GPU-Z and watch the perf cap reason.

[L33F]

4 minutes ago, 5x5 said:

Download GPU-Z and watch the perf cap reason.

done, there stands ''Idle'': ''limited by GPU utilization'' 

[5x5]

1 minute ago, L33F said:

done, there stands ''Idle'': ''limited by GPU utilization'' 

Then the game simply isn't using the card - what's your CPU utilization by core? Is your CPU clockspeed nominal?

[L33F]

1 minute ago, 5x5 said:

Then the game simply isn't using the card - what's your CPU utilization by core? Is your CPU clockspeed nominal?

do I have to run a benchmark or something and then watch what by perf cap reason stands? or just nothing? 

[5x5]

3 minutes ago, L33F said:

do I have to run a benchmark or something and then watch what by perf cap reason stands? or just nothing? 

You have to be in game. It has to be under the conditions where you are experiencing issues

[L33F]

4 minutes ago, 5x5 said:

You have to be in game. It has to be under the conditions where you are experiencing issues

oh, I go test it now I let you know in a couple of minutes. 

[L33F]

23 minutes ago, L33F said:

oh, I go test it now I let you know in a couple of minutes. 

just did it for a while, he just stays on idle. He jumps 4 times a second on ''pwr''