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Tom’s Hardware
Tom’s Hardware
Technology
Jowi Morales

Unreleased RTX 4090 prototype disassembled — massive four-slot GPU has unique PCB layout and runs exceptionally cool

RTX 4090 prototype cooler on a box.

We’ve previously covered a purported RTX 4090 Ti prototype circulating the internet, and someone has finally tested and disassembled the entire thing. Gamers Nexus conducted the test and tear down, where the prototype GPU was finally revealed to be an RTX 4090 with a massive flow-through heatsink and three fans. Another unique thing about this GPU is that its PCB is mounted parallel to the motherboard, and that it features a metal PCIe connector that’s connected to a socket directly on the GPU’s board.

Gamers Nexus host Steve Burke said that it took hours to take the GPU apart, especially as it’s just a prototype and there’s no available guide on how to disassemble the unit. There were also a ton of different screws that he had to get to, requiring him to use many screwdrivers. But once he was able to free the GPU’s PCB from its heatsink, Burke said that it’s most likely an RTX 4090 graphics card with 24GB of VRAM.

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