 Well, GPU launch day wouldn't be complete without a Linus Tech Tips evaluation of the temperatures of the new card under idle and load conditions. So remember that the load that I'm going to show you today is going to be kind of a worst case scenario running Furmark and the idle is, well, that's a pretty typical scenario, but it's still a bit of a best case because I am running on an open test bench and your CPU... CPU? Wow. Your computer case is actually going to keep things a little bit toastier than an open test bench just because of the recycling of the air that's being used to cool the components. So our idle temperature for this brand new GPU from Nvidia is actually 38 degrees and it does that at a fan speed of about 40%, well, exactly 40%, which equates to almost 1400 RPM and yeah, so that's fairly straightforward, isn't it? So I'll show you the load temperatures as well as compare it to its predecessor, which was often criticized for running too hot, the GTX 480. For the GPU load comparison on the GTX 580, you can see I've got Furmark running here in extreme burning mode and you can see the rise in temperature while I held a piece of paper over the intake of the fan so that it would heat up pretty quickly so that I could get my results and you can see it actually settled down into a temperature of 69 degrees Celsius. Okay, you can see that is backed up by afterburner over here with the fan running at about 53 to 54%, which is about 1920 RPM, so that's not bad at all and that's quite cool compared to other Fermi based cards. Mind you, this is GF 110, not GF 100 that we're talking about. It's a whole new beast. The idle reading for the GTX 480 really does tell the story despite this card being significantly less powerful than the 580, it runs significantly, and I am overusing that word, hotter than the GTX 580 so it idles at a whopping 47 degrees and that's with a fan RPM of over 1500 RPM. Bear in mind these are using a fairly similar fan, although the cooler design is quite different because the GTX 480 uses heat pipes, whereas the GTX 580 actually uses a vapor chamber design that is hidden by the plastic shroud. So if you weren't aware already, yes, GTX 480's reputation for running toasty is well enough deserved, so we've got the fan RPM up around almost 3000 RPM with a speed of 71% and we are still at 92 degrees. It's very, very hot, especially considering we are running on an open test platform in a reasonable temperature room. Now when you have a GTX 480 running nonstop in a normal size room, it will actually heat up the room several degrees, so that fan is actually going to go higher when it's inside a case in a warmer room. So the GTX 580 is a huge improvement over the GTX 480 in that regard. I sure wish I had something newer from AMD to compare against the GTX 580, wink, wink, nudge, nudge, but I guess the 5870 will just have to do for now. So you can see we're running at about 38 degrees and that is with a fan speed percentage of only about 20%, so we'll show you the load temperatures and that'll be in just a moment. So I guess we kind of know this already, but there we go, the 5870, it's been on the market for a while, loads at about 85 degrees with a fan speed of, yeah, only about 37%, so you could tweak the fan profile a little bit if you wanted, set it up so that that fan ramps up a little bit more and gives you better temperatures, but honestly it's not necessary. It's designed to run just fine at that temperature. Like I said, we'll have something better to compare this with the 580 against, compare against the 580 from AMD fairly soon. Thank you for checking out my video on the temperatures of the GTX 580 against its nearest competitors in the single GPU market. Don't forget to subscribe to Minus Tech Tips.