Can a 600W power supply handle overclocking an 8700k with a 1080ti graphics card?
Can a 600W power supply handle overclocking an 8700k with a 1080ti graphics card?
The system needs for the GTX 1080Ti include a 600 watt power supply and both 6-pin and 8-pin PCIe power cables. This satisfies the basic criteria. However, I recommend using a power supply between 650 to 750 watts.
OC 1080 supports up to 320-350W, while an OC 8700K draws 130W. For optimal performance, a 700W power supply is recommended. Your existing PSU can handle the setup but will face heavy strain if you run CPU and GPU at full capacity. In short, it should work, but consider upgrading to a reliable 700W or better power supply within the next three months.
Here are two options you might find useful. Both include a 750 watt model.
The first is the EVGA SuperNOVA 650 G3 with 80+ GOLD rating, 650W fully modular design.
The second is the Seasonic FOCUS Plus Series SSR-650FX 650W, compatible with ATX12V and EPS12V, compact 120mm fan, 140mm size.
Links provided for both products.
The GTX1080Ti has a maximum TDP of 250W. In theory, it only requires the 150W 8-pin PCIe and 75W PCIe slot to operate. The i7 8700K has a 95W TDP. Therefore, around 345W is needed for the two most power-hungry components. I wouldn't purchase another power supply unless you encounter specific problems. Even at 160W for the CPU, it should still function fine.
https://www.techpowerup.com/gpu-specs/ge...0-ti.c2877
https://ark.intel.com/products/126684/In...-4-70-GHz-
A newer CPU, and GPU consume power differently compared to older models.
William P shares his thoughts on the GTX1080Ti, noting its maximum TDP is 250W. He suggests it only requires a 150W PCIe 8 pin and a 75W PCIe slot to operate. The i7 8700K has a 95W TDP. Adding these two main components brings the total to around 345W. He advises against purchasing another power supply unless there are specific concerns. Even with the CPU pushed to 160W, he believes it should still function fine. He links to relevant specs for reference.
Dragos Manea shares his thoughts on the GTX1080Ti, noting its maximum TDP is 250W. He suggests only needing about 150W from the PCIe and 75W from the PCIe slot. The i7 8700K has a TDP of 95W. This means roughly 345W for the two biggest components. He advises against purchasing another power supply unless there are specific concerns. Even with the CPU pushed to 160W, it should still function well.
He provides links to detailed specifications and mentions that newer CPUs and GPUs consume power differently compared to older models. The GTX1080Ti supports both 6-pin and 8-pin PCIe connections, which adds up to 150+75+75. His own 1080ti Strix has a 1080 Ti Xeon core with 2x8 pin and a 200 MHz memory, resulting in a TDP of 320W. He points out that his system has a TDP of 140W but can reach up to 4.4W at 295W. He cautions against relying solely on Intel or NVIDIA's stated figures, emphasizing they aren't always accurate.
He also shares some real-world power consumption data for an OCed 8700K and encourages checking the specific GPU's requirements, noting variations based on manufacturers like EVGA and Asus.