I run Prime95 almost 24h day and my temps are (core temp) 83º at Prime's super high 100% load ♠♠
and 50 - 60 idle. Now is hot in spain. (almost summer)
375x9 = 3375 mhz
1.336v (cpu-z)
Performance? NTFS filesystem is so limited.
You will get performance if you make a partition (in your OS HD or better in another HD), for your swap (pagefile) of about 2x(RAM size) [Gb].
And your windows' ntfs filesystem will fragment slower.