i purchased a used evga ultra ftw3 3080 (no overcloked) from my close friend . i run modern games on 4k ultra setting fps is above 60 but temp is near 85c ! when i run 2k ultra temp is 81c. i tested unigine heaven in extreme setting every thing is fine temp is 82 max ,fps 82.6 score 2082 !

Last night, I tested furmark, after a minute the software crashes when the temp reaches 74, is there really a problem with the card?

my psu is coolermaster 750w psu 2 direct PCIe power plus 1 daisy chained is plugged into the GPU

in msi afterburn max tpd is 380w

What other tests can I do so that I can feel at ease because I have no problems in the game except the temp?

my full specs:

i5 12400f

ram 2*8 gb ddr4

6x 120m fan case

coolermaster td500 crystal