SC55 — Modern 24-Core, 768 GB CFD Node with High Memory Bandwidth

The SC55 node is our most modern Intel platform — built on the latest Sapphire Rapids architecture for high per-core performance and, crucially for CFD, high memory bandwidth. A single Intel Xeon Gold 5412U brings 24 cores and 48 threads of current-generation compute, paired with 768 GB of RAM and fast NVMe storage. Where many nodes compete on core count, SC55 competes on modern efficiency: fast cores, fast memory, and fast storage working together.

For CFD — where solver performance is often limited by memory bandwidth as much as by raw cores — SC55's 8-channel DDR5 makes it punch well above its core count.

Specifications

SC55 is built on the newest Intel server architecture in our lineup. It combines 24 high-IPC Sapphire Rapids cores with 8-channel DDR5-4400 memory — delivering far higher memory bandwidth (around 282 GB/s) than the DDR4 nodes — plus PCIe Gen 5 and fast NVMe storage. For memory-bandwidth-sensitive workloads like CFD, that bandwidth is a real, tangible advantage.

What's included with SC55

Every SC55 rental comes with extras to help you get the most from it:

• A comprehensive CFD course, free — a full training course to sharpen your simulation skills, included at no extra cost.

• One month of Claude AI Premium — AI assistance to support your engineering, scripting, and problem-solving.

• One hour of free CFD consultation — direct time with our CFD engineers to help set up, troubleshoot, or optimize your case.

These come standard with the node — practical support alongside the compute.

What this node is built for

SC55 plays to modern per-core speed and high memory bandwidth, backed by large memory and fast storage. It suits:

• Large meshes that benefit from bandwidth — CFD solvers move large amounts of data per iteration; DDR5 8-channel keeps the cores fed, so each core works at its best.

• Memory-bandwidth-bound cases — many steady and transient Fluent runs are limited by bandwidth, not core count, and this is where SC55 shines.

• Large cases needing substantial memory — 768 GB loads large meshes comfortably.

• I/O-heavy transient runs — fast NVMe storage keeps data writes and autosaves from stalling the solve.

• A modern, efficient CFD machine — for engineers who want current-generation hardware with strong real-world performance per core.

With 24 modern cores at up to 3.9 GHz, high-bandwidth DDR5 memory, and 768 GB of RAM, large cases both fit and solve efficiently.

Why memory bandwidth matters for CFD

CFD performance is not only about core count. At each iteration, the solver streams large amounts of mesh and field data through the cores — so memory bandwidth often sets the real-world pace. A node can have many cores, but if they are starved for data, they cannot run at full speed.

SC55's 8-channel DDR5-4400 delivers substantially more bandwidth than the DDR4 platforms, which means its 24 modern cores stay fed and productive. The result is strong real-world CFD performance that belies the core count — especially on bandwidth-bound cases.

• Need more cores for highly parallel work? Our 128-core EPYC node (SC44) or 40-core Xeon node (SC42) offer higher counts.

• Need even more memory or storage? Our 1 TB nodes go further.

• Want modern per-core speed and high bandwidth at large memory? SC55 is the pick.

Tell us your cell count and physics, and we will match you to the right tier.

Fast NVMe storage

The two 1.88 TB NVMe SSDs (about 3.76 TB total) deliver very high read/write speeds — far faster than SATA — so loading large case files, writing data, and handling frequent autosaves all happen quickly. Combined with PCIe Gen 5, storage keeps pace with the rest of this modern platform.

How parallel solving works on this node

When you run Fluent in parallel, the solver partitions your mesh across all 24 cores (using algorithms such as METIS), each core solving its share of cells and exchanging boundary data each iteration via MPI. On a single modern CPU, that communication runs over fast on-chip and on-board paths, keeping overhead low — and the high-bandwidth DDR5 memory ensures the cores stay fed, so each works at full speed. The result is strong, efficient real-world CFD performance.

Why rent instead of buy

A modern Sapphire Rapids server with 768 GB of DDR5 and NVMe storage is a significant purchase that depreciates between projects. Renting matches cost to workload:

For a modern, efficient CFD node with high memory bandwidth and no hardware to own, SC55 puts current-generation performance on demand — with higher-core and higher-memory nodes available when a case needs them.

How it works — you're in full control

SC55 is yours to drive directly. You connect to the node over a secure remote desktop connection and run everything yourself, exactly as you would on a local workstation:

1. Connect via remote desktop — you get full remote access to the SC55 node.

2. Set up your simulation — load your geometry and case, configure your solver settings, and run ANSYS Fluent with all 24 cores at your command.

3. Run and monitor in real time — start, pause, adjust, and watch the solution as it progresses, with complete control throughout.

4. Keep your results — post-process on the node or download your solution and data files whenever you're ready.

You have full authority over the node for the duration of your rental: we provide the hardware and the support, and you run the simulations your way.

Frequently asked questions

Why choose SC55 over a higher-core node? SC55 leads on modern per-core performance and memory bandwidth rather than core count. Because CFD is often bandwidth-bound, its 24 Sapphire Rapids cores with 8-channel DDR5 can deliver excellent real-world performance — sometimes rivaling older nodes with more cores. For highly parallel work that genuinely scales to many cores, our 40-core or 128-core nodes are the better fit.

How large a mesh can it handle? With 768 GB of RAM, count on large meshes — well into the hundreds of millions of cells for simpler physics (allow about 1 GB of RAM per million cells as a guide, more for complex physics). Send us your case for a precise estimate.

What does the DDR5 memory give me? Much higher memory bandwidth than DDR4 — which, for bandwidth-bound CFD solvers, translates directly into better real-world performance, keeping the cores fed and productive.

Is my data kept confidential? Yes. Your geometry, case files, and results stay private to you, treated as strictly confidential — and because you run everything yourself over remote desktop, your work stays under your control throughout.

Get started with SC55

If you want a modern, efficient CFD node with high memory bandwidth, strong per-core speed, large memory, and fast NVMe storage — with a free CFD course, a month of Claude AI Premium, and a consultation hour included — SC55 is built for exactly that.

Contact MR CFD for remote-desktop access to SC55 — and we'll help you confirm it's the right tier for your simulation.