Intel Xeon W9-3495X “Sapphire Rapids” CPU Sets New World Record, Overclocked To 4.2 GHz & Pulls Over 1000W

wccftech.com:

The first overclocking performance benchmarks of Intel's Xeon W9-3495X 56-Core "Sapphire Rapids" CPU have been published by Der8auer.

Der8auer used a server-tier motherboard featuring the LGA 4677 socket and for cooling, a 360mm AIO from Cooler Master was used. For memory, there was 192 GB of RDIMM (ECC) modules within an 8-channel configuration were used. The memory was operating at DDR5-5600 speeds.

For the motherboard, an RVP or Reference Validation Platform was used which houses the W790 chipset along with an 8 Phase VRM so it's not the best of the best design for overclocking like the several other W790 motherboards that ASUS, ASRock, Supermicro, and Gigabyte are going to offer but it should do the job well.

Intel Xeon W9-3495X "Sapphire Rapids" CPU XTU / CPUz (Image Credits: Der8auer):

The testing was done in a controlled environment at the Intel US HQ with the overclocking team. The Intel XTU (Extreme Tuning Utility) was used to overclock the Xeon W9-3495X CPU "Sapphire Rapids" and the chip itself was pushed to 4.2 GHz across all cores.

What's interesting is that voltage was set to just 1.0V while the processor current limit was pushed to the max of 1023A. The power consumption was around 300-350W at idle and power spikes of over 1000W were reported when the benchmark was running. No temperature numbers were shown but cooling the chip with a 360 AIO may not be the best choice when overclocking these chips.

Intel Xeon W9-3495X "Sapphire Rapids" CPU Power Spikes (Image Credits: Der8auer):

Despite that, the Intel Xeon W9-3495X "Sapphire Rapids" CPU scored an impressive 53,817 points in the Geekbench 5 benchmark which beats the current world record score of AMD's Threadripper Pro 5995WX in the same benchmark by