Gigabyte GTX 1660 Ti OC 6GB Graphics Card Integrated with 6GB GDDR6 192-bit memory interface. WINDFORCE 2X cooling system features 2x 90mm unique blade fans, alternate spinning fan, a composite copper heat pipe direct touch GPU and 3D active fan functionality, together delivering an effective heat dissipation capacity for higher performance at lower temperatures. The GIGABYTE patent “Alternate Spinning” is the only solution that can solve the turbulent airflow of adjacent fans. Since the adjacent fans rotate in the same direction, the airflow direction is opposite between the fans, which will cause turbulent airflow and reduce heat dissipation efficiency. GIGABYTE turns the adjacent fans in the opposite direction, so that the airflow direction between the two fans is the same, reducing the turbulence and enhancing the airflow pressure. Gigabyte GTX 1660 Ti OC airflow is spilt by the triangular fan edge, and guided smoothly through the 3D stripe curve on the fan surface, effectively enhancing the airflow. The 3D Active Fan provides semi-passive cooling, and the fans will remain off when the GPU is in a low load or low power game.Gigabyte GTX 1660 Ti OC allows gamers to enjoy gameplay in complete silence when the system is running light or idle. The shape of the pure copper heat pipe maximizes the direct contact area with the GPU, enhancing heat transfer. The heat pipe also covers the VRAM through a large metal plate contact to ensure proper cooling. Gigabyte GTX 1660 Ti OC graphics card uses the 4+2 power phase design to allow the MOSFET to operate at lower temperature, and over-temperature protection design and load balancing for each MOSFET, plus the Ultra Durable certified chokes and capacitors, to provide excellent performance and longer system life. The back plate not only provides an aesthetical shape, but also enhances the structure of the graphics card to provide complete protection. Gigabyte GeForce GTX 1660 Ti OC 6GB Review Now, Gigabyte GTX 1660 Ti OC  6G challenges us to think in the other direction. Is it worth spending a bit more than the 1660 Ti’s starting price for slightly higher frame rates on high-refresh monitors, over-built cooling, a 200W maximum power limit, and a bit of RGB lighting? Our Gigabyte GTX 1660 Ti OC launch review was based on EVGA’s XC Black Gaming model, which represents the 1660 Ti’s base price and 1,770 MHz GPU Boost reference spec. Gigabyte’s Gaming OC 6G, on the other hand, is the company’s highest-end version. Much of this design’s extra length is attributable to the familiar Windforce 3X cooler, which hangs off the PCB’s back edge by more than 2”. As you might imagine, a thermal solution designed to cope with RTX 2070’s 175W TDP and RTX 2060’s 160W power limit would be more than ample for GTX 1660 Ti’s 120W ceiling. Under the fan shroud, however, Gigabyte does cut costs with a less dense sink that weighs 1.49lb. (674g) instead of the RTX 2060 card’s 1.79lb. (811g). And although both designs employ a multi-part configuration, the 1660 Ti Gaming OC 6G utilizes three heat pipes between them, whereas the RTX 2060 employs four. Those pipes are flattened in the middle and placed directly over Nvidia’s GPU, where they draw heat away before dissipating it through the fin arrays. On the cooler’s left side, closest to the display outputs, one part of the sink contacts voltage regulation circuitry underneath through thermal pads. On the right side, another piece of the sink doesn’t touch the board at all. It simply helps the middle section keep TU116 and its surrounding memory modules running at the lowest temperature possible. Three 80mm fans sit on top of the thermal solution. The outside fans spin counter-clockwise, while the middle fan rotates clockwise. Turbulence is purportedly kept to a minimum, generating less competing airflow from adjacent fans. Then, at idle, the fans stop spinning altogether by virtue of a feature that Gigabyte calls 3D Active Fan. Enthusiasts who prefer to maintain lower idle temperatures can disable 3D Active Fan using downloadable Aorus Engine software. Frankly, the fans make so little noise that we prefer to keep them spinning (even though the semi-passive mode is one of this card’s competitive advantages). Around the fans, Gigabyte uses plastic gratuitously to form a shroud. Sharp angles and silver accents do look nice, though folds over the card’s top and bottom block air moving through the vertically-oriented fins. A freer-flowing arrangement, particularly above the heat sink, might have helped the already-impressive thermal performance. Instead, that’s where we find this card’s RGB-backlit Gigabyte logo. Regardless, the company’s relatively light cooler performs admirably. In Metro: Last Light, we observed the Gaming OC 6G consuming about 133W. Although that’s about 9W more than EVGA’s GeForce GTX 1660 Ti XC Black Gaming, Gigabyte’s card ran a couple of degrees cooler. Moreover, it maintained between 1,890 and 1,920 MHz through our run, whereas EVGA's XC Black Gaming demonstrated a range of 1,785 to 1,815 MHz. Gigabyte’s 1660 Ti Gaming OC 6G sports a plastic backplate. This plate doesn’t do anything for rigidity, and it certainly doesn’t improve the card’s cooling. The plate may, however, help protect the PCB in case something gets dropped on it. We approve of Gigabyte’s display output choices. Three DisplayPort connectors and a single HDMI interface cover the most common multi-monitor configurations. Down at this level, VirtualLink support isn’t really necessary. And doing away with DVI yields a freer-flowing grille. Unfortunately, the potential benefit of additional airflow is lost since the cooler’s fins move air perpendicular to the bracket. What lives under the GeForce GTX 1660 Ti Gaming OC 6G’s hood is already well-known. We dissected the TU116 graphics processor in Nvidia GeForce GTX 1660 Ti 6GB Review: Turing Without The RTX. Gigabyte takes the same chip, with 1,536 CUDA cores, and bumps the typical GPU Boost rating up to 1,860 MHz—a 5% increase compared to the 1,770 MHz we tested from EVGA’s XC Black Gaming board. Gigabyte GTX 1660 Ti OC  card's 6GB of GDDR6 memory moves data at 14 Gb/s, yielding 288 GB/s of aggregate bandwidth on a 192-bit bus. All of Gigabyte's graphics cards include three years of warranty coverage, and some of them add a fourth year when you register on the company's website. The GeForce GTX 1660 Ti Gaming OC 6G is not one of those special models. In its segment, however, three years of coverage is fairly standard. Specifications Video Memory Specifications Type GDDR6 Size 6GB Memory Clock 12000 MHz BUS Type 192 bit Memory Interface Memory Bandwidth (GB/sec) 288 GB/s Interface Display Port 1.4 *3 HDMI 2.0b *1 HDCP Yes Power Specifications Connectors 8 Pin*1 Recommended PSU 450W Display Option Multi Display 4 Application Programming Interfaces DirectX 12 OpenGL 4.5 Physical Specifications Dimensions L=225.65 W=122.02 H=40.5 mm Others PCB Form ATX Warranty Manufacturing Warranty 02 years ..