Fully Compatible
Is GeForce RTX 4090 Compatible with Corsair RM1200x Shift?
Verified for 2026
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95% Engineering Score
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2 Views
The Quick Verdict
Yes, the Corsair RM1200x Shift (1200W) provides adequate continuous power and 12V rail headroom for the GeForce RTX 4090 (which requires a minimum 1000W power supply).
Primary Device
GPU
GeForce RTX 4090
Brand: NVIDIA
Technical Properties:
{"TDP":"450W","Connector":"1x 16-pin 12VHPWR"}
Paired Hardware
PSU
Corsair RM1200x Shift
Brand: Corsair
Technical Properties:
{"Wattage":"1200W","Efficiency":"80 Plus Gold"}
Technical Analysis & Architecture
The GeForce RTX 4090 draws approximately 450W under maximum gaming loads. Pairing it with Corsair RM1200x Shift leaves 750W for CPU and system memory.
Power, Wattage & Thermal Requirements
GPU TDP: 450W | Recommended PSU: 1000W | Available PSU Output: 1200W.
Connectors, Pinouts & Ports
1x 16-pin 12VHPWR (Native 12V-2x6 cable supported)
Frequently Asked Questions
Will Corsair RM1200x Shift cause bottleneck or shut down with GeForce RTX 4090?
No, voltage delivery is fully stable.
Do I need an adapter cable?
No, native cable is included in box.
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