Someone cooled AMD's $11,699 Threadripper Pro 9995WX with a BMW M4 radiator and some fans from a Toyota Highlander — 1,200 liters per minute pump still can't match liquid nitrogen, though
Geekerwan's BMW-cooled Shimada Peak is overtaken in the fast lane by Uncle Tony and his LN2.

AMD’s incredibly powerful new Threadripper Pro 9995WX doesn’t come bundled with a cooler. However, Geekerwan might have the perfect answer for this processing Goliath that can casually consume over 1,000W. The Chinese TechTuber decided to remove the radiator and pump from his BMW M4 high-performance coupé, to see how it could tame the heat from Shimada Peak.
AMD’s $11,699 Threadripper Pro 9995WX is designed to deliver breakthroughs, as the “World’s Fastest Workstation Processor,” according to AMD. Checking through the full Threadripper 9000 specs table we published last week, the 9995WX is right at the top, as the newest flagship, featuring the Zen 5 architecture, a 384MB cache, and boasting 96 cores and 192 threads, running at up to 5.4GHz - given the opportunity (power and cooling) to do so.
While it has a quoted TDP of 350W, if you want to squeeze every ounce of performance out of the 9995WX, you will turn to PBO and overclocking techniques. With these performance-enhancing technologies turned up to 11, the king of the Shimada Peak processors can quickly demand 1,000W of power, or much more. That’s a lot of heat to dissipate.


BMW (and Toyota) to the rescue?
Geekerwan asserts that the BMW M4 has “the best cooling performance in the world” for a civilian vehicle (machine translated). Holding aloft the radiator, ripped from his precious M4, he highlights that the hefty rad in his hands is about 600 x 350mm, or about the size of five 360mm radiators stuck together.
Geekerwan’s BMW radiator shenanigans begin around 7 minutes. Closed captions translated to English are available.
Of course, a suitable pump is also required to make the most of the BMW radiator, and naturally, the M4’s pump was also commandeered for this Threadripper 9000 cooling task. The M4's automotive cooling pump can push 1,200 liters per hour (20 liters per second!).
There’s one more essential to building an automotive AIO for a CPU, and that is the fans. Geekerwan didn’t opt for the typical Arctic, Noctua, or Cooler Master spinners, though. Here’s where Toyota came in, with a Highlander 4x4’s fans borrowed for pushing air through the M4 radiator. Two of these 30cm fans were used and required 100W alone to do their duty.
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Still can’t beat a flask of LN2
Many of you will be expecting this, but Geekerwan explains that, while his “super water cooling” setup performed as expected, it was held back by the interface between the CPU cores and the AIO system. In other words, the automotive AIO setup that was assembled just couldn’t get the heat away from the cores fast enough to unleash the full potential of either. The CPU failed to break the 5.0 GHz all-core mark, and the radiator was “still cold” during Geekerwan’s testing.
Geekerwan uses the rest of his video to inform people with more money than sense that, for gaming, consumer CPUs like the Ryzen 9 9950X are still far superior to a Threadripper (but there may be exceptions, like Cities: Skylines 2).
The Chinese TechTuber generously highlighted Uncle Tony’s video (Chinese, Bilibili platform) of the Threadripper Pro 9995WX being put to the test under liquid nitrogen cooling, for those eager to gauge the ultimate performance of this CPU.
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Mark Tyson is a news editor at Tom's Hardware. He enjoys covering the full breadth of PC tech; from business and semiconductor design to products approaching the edge of reason.
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P.Amini Came to read, saw the picture, saw the "Chinese TechTuber" words, stopped, commented, next article.Reply -
Notton BMW would not be my first choice when it comes to containing fluids.Reply
Next step up in (relatively) cheap cooling would be hooking up a giant reservoir and dumping a ton of ice in it. IDK, 65L would probably be enough for a quick bench or two. -
ezst036 Next:Reply
Get hoses and a fan and radiator from an 18 wheeler. Or a radiator and fan w/ hoses from a residential 4 ton air conditioning unit. :tearsofjoy:
https://i0.wp.com/www.greenleafair.com/wp-content/uploads/2018/08/payne.jpg?resize=948%2C1024&ssl=1 -
King_V I could've sworn something similar was done, that I'd read about in a Maximum PC article? Or maybe it was online, but around that same time period, I wanna say late 90s or early 2000s.Reply
User in question had a few PCs, and basically set up in their basement or another room something that looked like a car radiator with a large fan (radiator fan? Room fan? Can't recall) to cool it. Coolant was then run through tubes into multiple rooms, and the single radiator was used to cool multiple PCs. -
John Kiser I mean it's a given it isn't going to match liquid nitrogen given its boiling point (where it turns from liquid to gas) is massively below the freezing point of water.Reply
Water itself when heated and cooled through a loop of any sort unless it actually is something like an industrial water chiller is only going to cool so much as most car radiators are designed to do engine coolant by about 5-6 C at most and while a computer doesn't get nearly as hot as a car engine particularly in the cooling loop. Even with overclocking it might just reach about the same potential cooling capacity unless you were to actually rig it up to much more powerful cooling and I can almost guarantee you that a car driving 35 - 80 mph is likely providing a lot more air movement than most stuff he could strap to it -
das_stig Linus hooked up a portable air con unit and it was a great quiet cooler, condensation became an issue though.Reply -
P.Amini
Paul Alcorn from Tom'sHardware has posted something similar years ago:King_V said:I could've sworn something similar was done, that I'd read about in a Maximum PC article? Or maybe it was online, but around that same time period, I wanna say late 90s or early 2000s.
User in question had a few PCs, and basically set up in their basement or another room something that looked like a car radiator with a large fan (radiator fan? Room fan? Can't recall) to cool it. Coolant was then run through tubes into multiple rooms, and the single radiator was used to cool multiple PCs.
1292993661886758913View: https://x.com/PaulyAlcorn/status/1292993661886758913
1292990102831079424View: https://x.com/PaulyAlcorn/status/1292990102831079424 -
King_V I'd missed that! But whatever it was I'd run across and only imperfectly remember was at least a dozen or more years earlier.Reply -
edzieba
Before manufacturers started making dedicated PC watercooling hardware (RIP Danger Den), using car radiators and intercoolers was the standard.King_V said:I could've sworn something similar was done, that I'd read about in a Maximum PC article? Or maybe it was online, but around that same time period, I wanna say late 90s or early 2000s. -
bobkn
I would have preferred a private email response, but I didn't spot an address.Admin said:Geekerwan tested an AMD Threadripper Pro 9995WX CPU cooled by a BMW M4 radiator and pump.
Someone cooled AMD's $11,699 Threadripper Pro 9995WX with a BMW M4 radiator and some fans from a Toyota Highlander — 1,200 liters per minute pump s... : Read more
1200 liters per hour is 20 liters per minute, or 1/3 liter per second. Still a high flow rate.
(Aside: what sort of person would do that to a BMW M4?)