Intel’s 18-core processor peaks above 6.1GHz with liquid nitrogen cooling

Intel’s new monster Core i9 processors boasting 18-cores and 16-cores have just gone on sale, and Asus has set some blistering new records overclocking these CPUs with its ROG Rampage VI Apex motherboard.

Using the Core i9-7980XE 18-core processor (with a base clock of 2.6GHz, Turbo to 4.2GHz) cooled with liquid nitrogen to around -100°C, expert ROG overclocker ‘der8auer’ managed to push the chip to 6.104GHz across all 18 cores (at 1.55V).

All without the CPU being reduced to a melted pile of goop, although the system wasn’t stable enough to run benchmarks at this speed.

To get some testing done, things had to be toned down to 5.6GHz with a voltage of 1.45V, at which point the multi-threaded Cinebench R15 benchmark could be run – Asus notes that there was almost 1000W coursing through the system.

The Cinebench R15 CPU score notched up was 5,635, a mind-boggling figure when you consider it almost doubled the previous record of 2,990 (another overclocker, ‘elmor’, pushed the chip even further to set a new record of 5,723).

New records were also achieved in 3DMark Vantage 2x with the CPU at 5.66GHz, with Italian overclocker ‘Rsannino’ achieving a score of 138,185 (compared to the previous record of 135,813).

He further blew away the Geekbench3 multi-core record – which stood at 48,004 – with a score of 92,307, again a massive leap.

Core i9 blimey

Furthermore, Rsannino clocked the Core i9-7940X (with 14-cores, base clock 3.1GHz) up to 5.7GHz, and again set a new Cinebench R15 record (4,339 compared to the previous 2,424) along with Geekbench3 multi-core (70,618 eclipsing the previous record of 40,155).

A load of other new highs were reached, and you can see the full list of benchmark records in this Asus article.

As ever, these sort of liquid nitrogen shenanigans are a far-cry from real-world overclocking and performance, but you can still gauge the relative power of Intel’s new monster processors in terms of how much they blew away the previous (equally super-cooled) records.

Of course, should you be tempted to invest in Intel’s flagship 18-core CPU, you’ll need deep pockets as it retails at $1,999 (about £1,480, AU$2,510), but it is exceptionally powerful, as these benchmarks illustrate – and as we found out in our full review.

However, it costs twice as much as AMD’s 16-core Ryzen Threadripper 1950X.

  • Maybe Black Friday will give us some hot deals on Core i9 CPUs
TOPICS

Darren is a freelancer writing news and features for TechRadar (and occasionally T3) across a broad range of computing topics including CPUs, GPUs, various other hardware, VPNs, antivirus and more. He has written about tech for the best part of three decades, and writes books in his spare time (his debut novel - 'I Know What You Did Last Supper' - was published by Hachette UK in 2013).

Latest in CPU
AMD Ryzen AI
New leak suggests AMD's working on an Arm-based processor to rival Qualcomm's Snapdragon X series
AMD Ryzen 9950X3D chip next to its packaging on a pink table
Asus' AI Cache Boost promises to "pump up" your AMD Ryzen 9000 processor's AI performance
An AMD Ryzen processor slotted into a motherboard
Future AMD-powered gaming handhelds and notebooks could miss out on a key feature – and it might be a deal breaker for gamers
John Loeffler holding the Ryzen 7 7800X3D
Great news! The best gaming CPU ever made is finally available for its original launch price again
The Ryzen AI Max+ 395 could power the latest generation of powerful mini PCs
The AMD Ryzen AI Max+ 395 dominates as the "most powerful" APU on the market, but its competition is questionable
Intel Lunar Lake concept
Intel's Panther Lake processors won't arrive until Q1 2026 - corroborates previous delay rumors despite former Intel CEO's promise of 2025 launch
Latest in News
DeepSeek
Deepseek’s new AI is smarter, faster, cheaper, and a real rival to OpenAI's models
Open AI
OpenAI unveiled image generation for 4o – here's everything you need to know about the ChatGPT upgrade
Apple WWDC 2025 announced
Apple just announced WWDC 2025 starts on June 9, and we'll all be watching the opening event
Hornet swings their weapon in mid air
Hollow Knight: Silksong gets new Steam metadata changes, convincing everyone and their mother that the game is finally releasing this year
OpenAI logo
OpenAI just launched a free ChatGPT bible that will help you master the AI chatbot and Sora
An aerial view of an Instavolt Superhub for charging electric vehicles
Forget gas stations – EV charging Superhubs are using solar power to solve the most annoying thing about electric motoring