Intel

Thermal Grizzly Announces Delidded AMD Ryzen 7 9850X3D CPU

Thermal Grizzly announced its TG Delidded CPUs , which would see the company sell delidded AMD Ryzen 9000 CPUs for enthusiast use with direct-die cooling solutions. The program started with the AMD Ryzen 7 9800X3D and has since expanded to include the AMD Ryzen 9 9950X3D , with the latest addition being the recently released AMD Ryzen 7 9850X3D. The delidded 9850X3D comes in at $876.33 on the Thermal Grizzly store, which is a marked increase over the $500 MSRP, but it also includes a warranty in the case of any manufacturer defects or issues that might arise during the delidding process. The aforementioned warranty is valid for two years and covers material defects of the CPU and even extends to overclocking within manufacturer spec, as long as adequate cooling is provided. It does not cover any physical or liquid damage to the silicon, SMDs, or the PCB.

[Editor's note: Our in-depth review of the AMD Ryzen 7 9850X3D is now live]

Roman Hartung, aka Der8auer, famous overclocker and CEO of Thermal Grizzly, published a YouTube video demonstrating the delidding process and documenting potential performance and thermal improvements as a result of delidding and direct-die cooling. In the video, Hartung tests the 9850X3D in Cinebench R23, demonstrating a 90.2° C peak temperature on one CCD, with the average die temperature getting as high as 88.1° C with a peak power draw of 182.35 W in the 10-minute CPU benchmark run. Individual peak CPU core temperatures ranged from 78 to 88.2° C, whereas after applying liquid metal and a direct-die cooling solution resulted in peak CPU core temperatures of 66.1-75.3° C and a peak average CPU temperature of 75.3°C—temperatures were down around 15° C across the board following the delid. Power draw was slightly lower during this test, at 178.09 W peak package power, although the same settings were applied in BIOS ahead of the tests. Hartung also goes on to test the overclocking capabilities of the delidded CPU on the direct-die cooling solution, which can be seen in the video below.
Read full story