Temperatures are important to enthusiasts and gamers, so we took a bit of time and did some temperature testing on the NVIDIA GeForce GTX 770 based video cards.
ASUS GTX 770 DirectCU II Idle Temperature:
MSI GeForce GTX 770 Gaming Idle Temperature:
ASUS GTX 770 DirectCU II Gaming Temperature:
MSI GeForce GTX 770 Gaming Card Gaming Temperature:
When playing Far Cry 3 and Battlefield 3 for about 30 minutes each, we hit 63C on the ASUS card and 71C on the MSI card. Notice that ASUS has the fan profile fairly aggressive, so the fans are spinning at 2340RPM and they are louder than MSI. During gaming the MSI fans spin at just 1320RPM, so you get less noise and more heat.
When it comes to temperature testing both the ASUS and MSI GeForce GTX 770 OC cards were found to idle at 27C, but at load there was an 8C difference between the cards. The ASUS GeForce GTX 770 DirectCU II clearly runs cooler at full load. It should be noted that we tested with automatic fan control enabled, but you can manually control the fans on both cards.
We recently upgraded our sound meter to an Extech sound level meter with ±1.5dB accuracy that meets Type 2 standards. This meter ranges from 35dB to 90dB on the low measurement range, which is perfect for us as our test room usually averages around 36dB. We measure the sound level two inches above the corner of the motherboard with ‘A’ frequency weighting. The microphone wind cover is used to make sure no wind is blowing across the microphone, which would seriously throw off the data.
When it comes to noise levels the MSI GeForce GTX 770 Gaming OC card was quieter at full load, but the ASUS GeForce GTX 770 DirectCU II was quieter at idle.