The card is based on a nice thin dual-slot dual fan cooling solution, revision V of TwinFrozr. The TwinFrozr V’s Fans actually stop spinning below 60°C to reduce noise and increase fan life time. Zero/Hybrid Frozr is a throwback to 2008 when MSI was the first to market high-end, so that is zero noise graphics cards thanks to the fan stopping in low-temperature situations.
The card is based on a nice thin dual-slot dual fan cooling solution, revision V of TwinFrozr. The TwinFrozr V’s Fans actually stop spinning below 60°C to reduce noise and increase fan life time. Zero/Hybrid Frozr is a throwback to 2008 when MSI was the first to market high-end, so that is zero noise graphics cards thanks to the fan stopping in low-temperature situations.
Thermal and Power Specs:
98 C = Maximum GPU Tempurature (in C)
145 W = Graphics Card Power (W)
500 W = Minimum System Power Requirement (W)
2x 6-pins = Supplementary Power Connectors
1140MHz Core (Boost Clock:1279MHz) (OC Mode)
1114MHz Core (Boost Clock:1253MHz) (Gaming Mode)
1051MHz Core (Boost Clock:1178MHz) (Silent Mode)
Like the ASUS card, the GTX 970 Gaming 4G features a semi-passive mode, which it calls Zero Frozr. It's something MSI first brought to the market in 2008 (it's keen to clarify that it hasn't copied the ASUS Strix cards here). The temperature cut-off points are similar to the ASUS card – between 60 and 65°C, the fans will spin up; once the GPU drops to about 50°C, they're no longer needed. This carries benefits for noise production, efficiency and fan lifespan.
Another feature is called Hybrid Frozr, and this refers to the ability to control both fans independently. Enabling this functionality is a six-pin fan header on the PCB. In automatic mode, one fan is controlled by the GPU temperature while the other is controlled by temeprature measurement ICs dotted around the PCB. MSI claims it can result in a 1.9dB(A) noise reduction, and also offers users the ability to control the two fans independently using its Gaming App.