Hi guys welcome to the world of Pierre, I am Pierre and today I want to talk about fans okay not these fans, the fans on the iMac 2017 actually one fan! So I did a few videos on gaming on an iMac and I got quite a few comments people asking about the fan noise and also the core temperature of the GPU so take off your shirt it’s gonna get really hot in here! So fan noise it can be very distracting when you game on a laptop especially there is a dedicated graphics card it will get really hot so a few months ago I bought the Dell XPS 15 and it comes with a gtx 1050 and i tried to play PUBG with this and after a while the fan kicks in and it’s very very distracting so i had to return it.And let’s be honest you will always hear the fan when you play some heavy games on the laptop but there is a difference between audible and distracting. The iMac is not a gaming laptop but because there is a lot of power crammed into this small chassis I understand what a lot of people have been asking me, actually two people two people have been asking me about core temperature for the GPU and also the fan noise on this machine. And before we talk about fan noise, they talk about temperature because the two are linked. So to get the temperature I installed two free software the first one is called Open Hardware Monitor and the second one is called Macs Fan Control. But I still have my 2012 iMac with the NVIDIA GeForce GTX 680 MX so I used that model as well, I did some tests on that model to give you a bit of an idea and compared the two and show you how the 2017 model is doing compared to the 2012 model.So for the ambient temperature I mean the temperature inside the chassis the new iMac runs cooler on idle the latest iMac runs 10 degrees cooler in the same room with the same fan speed of 1200 RPM. As the difficulty of the task increases the RPM rises but the ambient temperature barely changes. And by the way 3000 RPM cannot be right since the maximum speed is 2640 So it must be a bug. All I can say is the fan is at the top speed when I play PUBG. With the GPU it gets really hot! The temperatures are quite low on both machines when watching movies or normal use but as soon as you start gaming the GPU gets hot and reaches around 91C You can note that the temperature of 2017 are quite similar to the 2012 but at a lower RPM and as you will see there is an impact on noise.There are not a lot of information about what normal
temperature is for a GPU for that model in particular, there is not a lot of information. I found an article about Nvidia cards and they talk about a maximum of 105 Celsius. So I would say 91 is not ideal but is acceptable. So before I join to the fan noise level, here comes a few slides in Fahrenheit for my lovely u.s.Viewers So for the sound level, I use on a free app on Android called Sound Level, so take these stats with a pinch of salt. So when the Mac is of the noise level in my room are 23 decibels. You also get 23 decibels when the iMac is on idle and when watching Netflix. Both iMacs are completely silent. When gaming the fan of the 2012 model has to spin way faster than the newer iMac to keep the GPU cool hence a higher noise level which can be a bit distracting.So the bottom line is on a 2017 model the fan performs much better than 2012 and manages to cool the system at a lower RPM and keep the noise level to a minimum even under load. The fan is very quiet when you’re on idle or when you watch a movie so if you hear anything and there is something wrong with your iMac and you should go back to Apple and get it fixed or get a new one. You can only notice the fan when you play some very demanding games like Witcher 3 or some poorly optimized game like PUBG. Voila I hope you enjoyed this video as you can see the cooling under 2017 iMac is pretty good even with an 8GB Radeon Pro 580. It will keep the card cool…ok not cool but you know, not too hot so it’s pretty impressive and it doesn’t make a lot of noise.If you want to cool down GPU even more you can install Macs Fan Control and increase the RPM of the fan. You will cool down the card but you would get a higher noise when you game on this computer so it’s up to you. Thumbs up if you liked the video, let me know if you have some comments or if you have some questions and don’t forget to subscribe to my channel. I’ll see you very soon. Bye bye so I bought a Dell XPS a few months ago and I tried to play some PUBG and I had to return it it was too distracting and it sounded a bit like when the iMac is more like you know…that’s not weird at all. .