MSI Unveils the GeForce RTX 5090 Lightning Z: A New Benchmark in GPU Performance

At the 2026 International CES, MSI introduced its most advanced graphics card to date—the GeForce RTX 5090 Lightning Z. This flagship GPU is built on a fully custom PCB and features NVIDIA’s GB202 chip, setting a new standard for high-performance gaming and professional workloads.

Unmatched Clock Speeds and Overclocking Potential

The GeForce RTX 5090 Lightning Z arrives with a factory boost clock of 2,730 MHz, and an "Extreme Performance" overclocking profile that pushes it to 2,775 MHz. Under extreme conditions, such as liquid nitrogen (LN2) cooling, professional overclockers have achieved record-breaking speeds of up to 3,742 MHz. This makes it the fastest LN2-cooled RTX 5090 GPU ever produced.

Robust Power Delivery and Cooling Solutions

To support these extraordinary clock speeds, MSI has engineered a 40-phase VRM design, ensuring stable voltage delivery and efficient power management. The card is rated for 800 W of power out of the box, with an "Extreme" preset mode that increases the power envelope to 1,000 W when paired with its 360 mm all-in-one (AIO) water cooling system. Power is supplied via dual 16-pin 12V-2x6 connectors, each capable of delivering up to 600 W. The cooling system is equally impressive. The GPU is equipped with a full-copper cold plate that covers the entire 3 oz copper PCB, effectively cooling the GPU core, VRMs, and memory modules. The 360 mm radiator, connected by two robust tubes, is designed to dissipate up to a kilowatt of heat, ensuring optimal thermal performance even under the most demanding conditions.

Next-Generation Memory and Design

MSI has integrated 28 Gbps Samsung GDDR7 memory modules, which can be overclocked to 36 Gbps under LN2 cooling and are expected to reach over 30 Gbps with standard water cooling. The card’s design is striking, featuring a bold yellow theme and a large display that gives it the appearance of a compact tablet.

Engineering for Extreme Overclockers

Achieving the highest clock speeds required several modifications by expert overclockers. An exclusive XOC BIOS, likely provided by MSI, was essential for unlocking the card’s full potential. To handle power demands beyond the dual 12V-2x6 connectors, overclockers used multiple high-capacity power supplies. The advanced PCB design enables the GPU to sustain multi-kilowatt loads, and only LN2 cooling can manage the resulting 2.5 kW of heat in such a compact form factor. For typical users, MSI recommends a 1,600 W power supply, which provides ample headroom for standard overclocking.

Limited Availability and Anticipated Reviews

MSI plans to produce only 1,300 units of the GeForce RTX 5090 Lightning Z, making it a highly exclusive offering. Pricing details have not yet been announced, but the limited production run suggests it will be a premium product. A comprehensive review, including in-depth performance testing, is expected soon, offering further insights into what could be the most powerful consumer GPU ever released.