Get the latest tech news
Intel Xeon 6980P SNC3 vs. HEX Clustering Mode Performance
With the Intel Xeon 6900P 'Granite Rapids' processors that launched last week there are SNC3 and HEX clustering modes for these new processors.
Using the flagship 128-core Intel Xeon 6980P processors, I ran some benchmarks looking at the real-world performance difference for SNC3 vs. HEX clustering modes on Granite Rapids. SNC3 will restrict the L3 cache and four memory channels to each of the three compute dies to avoid latency overhead where as with HEX mode it's all as one big domain per socket. Being curious about the real-world performance impact and for reference purposes, I ran some benchmarks of the Xeon 6980P dual socket server in both SNC3 and HEX modes.
Or read this on Phoronix