EVGA GeForce GTX 980 Ti 6GB GAMING ACX 2.0+, Whisper Silent Cooling Graphics Card 06G-P4-4991-KR Virtual Reality Ready Great for 4K (GeForce GTX 980 Ti & above) DirectX12 Ready Gamestream to NVIDIA SHIELD EVGA "ACX 2.0+" Cooling Technology - Fine-Tuned to Perfection EVGA's 24/7 Technical Support; Base Clock: 1000 MHz / Boost Clock: 1076 MHz Memory Clock: 7010 MHz Effective; CUDA Cores: 2816; Memory Detail: 6144MB GDDR5 Recommended PSU: 600W or greater power supply