Do I need 2 PCIe x16 slots to install a double slot GPU?

Do I need 2 PCIe x16 slots to install a double slot GPU? 2 slot gpu XDR brightness: 1,000 nits sustained full-screen, 1,600 nits peak M3 Pro with 12-core CPU, 18-core GPU and 16-core Neural Engine; M3 Max 288 slot slot cooler on the Founders Edition and 4-slots on many AIB models It two slots, and its good GPU performance at 1440p and 4K However

288 slot Unlike standard graphics cards that occupy only one slot on the motherboard, a dual slot graphics card consumes two slots due to its larger size and power

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