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

RTX 4090 prototype cooler on a box
(Image credit: Gamers Nexus / YouTube)

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.

NVIDIA's Unreleased TITAN/Ti Prototype Cooler & PCB | Thermals, Acoustics, Tear-Down - YouTube NVIDIA's Unreleased TITAN/Ti Prototype Cooler & PCB | Thermals, Acoustics, Tear-Down - YouTube
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Jowi Morales
Contributing Writer

Jowi Morales is a tech enthusiast with years of experience working in the industry. He’s been writing with several tech publications since 2021, where he’s been interested in tech hardware and consumer electronics.

  • ezst036
    Looking forward to the 5 slot prototype 5090.
    Reply
  • coromonadalix
    8 gauge supply wires and optical signal coupling, 1kw psu needed
    Reply
  • Hooda Thunkett
    ezst036 said:
    Looking forward to the 5 slot prototype 5090.
    And later a 6-slot 6090!
    Reply
  • Charogne
    I envision a near future where we will install CPU, SDD and RAM in the GPU cooler :rolleyes:
    Reply
  • TechLurker
    Charogne said:
    I envision a near future where we will install CPU, SDD and RAM in the GPU cooler :rolleyes:
    I mean, installing M2s onto GPUs isn't entirely new; AMD first tested it with their Prosumer line, ASUS did one with an Nvidia GPU to make full use of the lanes, and there's that recent one from a Chinese company that adds 2 M2 slots to an Intel GPU to make full use of the lanes.

    Now if GPUs can better utilize an onboard link to an M2 for either extra cache for rendering or for loading game assets to, we'll soon be strapping M2 drives to them for that.
    Reply