Revisiting The SNC3 vs. HEX Mode Performance With Intel Xeon 6 Granite Rapids

Written by Michael Larabel in Memory on 21 October 2025 at 11:00 AM EDT. Page 3 of 4. Add A Comment.
miniBUDE benchmark with settings of Implementation: OpenMP, Input Deck: BM2. HEX Mode was the fastest.
NAMD benchmark with settings of Input: STMV with 1,066,628 Atoms. HEX Mode was the fastest.
Renaissance benchmark with settings of Test: Apache Spark Bayes. HEX Mode was the fastest.
Renaissance benchmark with settings of Test: In-Memory Database Shootout. HEX Mode was the fastest.
easyWave benchmark with settings of Input: e2Asean Grid + BengkuluSept2007 Source, Time: 2400. HEX Mode was the fastest.
TTSIOD 3D Renderer benchmark with settings of Scene: Dragon Vis. HEX Mode was the fastest.
Pogocache benchmark with settings of Set To Get Ratio: 1:5. HEX Mode was the fastest.
Pogocache benchmark with settings of Set To Get Ratio: 1:100. HEX Mode was the fastest.
PostgreSQL benchmark with settings of Scaling Factor: 100, Clients: 1000, Mode: Read Only. HEX Mode was the fastest.
PostgreSQL benchmark with settings of Scaling Factor: 100, Clients: 1000, Mode: Read Only, Average Latency. HEX Mode was the fastest.
Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Qwen3-8B-Q8_0, Test: Text Generation 128. HEX Mode was the fastest.
Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Llama-3.1-Tulu-3-8B-Q8_0, Test: Text Generation 128. HEX Mode was the fastest.
Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Mistral-7B-Instruct-v0.3-Q8_0, Test: Text Generation 128. HEX Mode was the fastest.

HEX wins

For Pogocache, some PostgreSQL configurations, some Llama.cpp AI scenarios, PETSC, NAMD, and other select workloads were performing better on this Intel Xeon 6980P dual socket server when running in HEX mode.

Related Articles
Single vs. Dual Channel Memory Performance With The Intel Core Ultra 7 270K Plus
Intel Xeon 6 Granite Rapids Memory Scaling Performance From 6 To 12 MRDIMMs
DDR5-4800 vs. DDR5-6000 Performance With The AMD Ryzen 7 9850X3D In 300+ Benchmarks
Transparent Hugepage Performance On Linux 6.18 LTS: Madvise vs. Always
Revisiting DDR5-6400 vs. MRDIMM-8800 Performance With Intel Xeon 6 "Granite Rapids"
DDR5-6400 vs. DDR5-4800 R-DIMM Performance For Threadripper 9980X / 9970X CPUs