SC49 — High-Clock, Large-Cache 16-Core CFD Workstation Node

The SC49 node is built for speed per core, not core count. An AMD Ryzen 9 7950X3D (Zen 4 with 3D V-Cache) brings 16 cores and 32 threads at the highest clock speed in our entire lineup — up to 5.7 GHz — backed by a huge 128 MB L3 cache and 128 GB of RAM. For CFD work where per-core performance and a large cache matter more than many cores, SC49 is the sharpest tool we offer.

Its standout feature is the 3D V-Cache: a very large cache that keeps more of the working data close to the cores — which can meaningfully help cache-sensitive simulations by easing pressure on memory.

Specifications

Two things set SC49 apart: the highest clock speed in our lineup (up to 5.7 GHz) for outstanding per-core performance, and a very large 128 MB 3D V-Cache that benefits cache-sensitive workloads. With 128 GB of RAM behind 16 fast cores, it also has generous memory headroom for the cases it targets.

What's included with SC49

Every SC49 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

SC49 plays to per-core speed and large cache rather than high core count. It suits:

• Per-core-bound CFD — moderate cases where fast cores matter more than many cores.

• Cache-sensitive simulations — the 128 MB 3D V-Cache keeps more mesh and field data close to the cores, which can speed up workloads that would otherwise be memory-bound.

• Pre- and post-processing — meshing, case setup, and results handling, where single-thread speed makes the workflow feel fast and responsive.

• Moderate meshes on a deadline — 16 of the fastest cores in the lineup give a brisk turnaround.

• A responsive, high-clock workstation — for engineers who want the snappiest possible machine for moderate CFD, with comfortable memory.

The 128 GB of RAM means memory rarely limits this node for the cases it targets; its strengths are clock speed and cache.

Where SC49 fits — speed and cache vs. core count

In CFD, core count drives parallel speed-up on large meshes, while per-core performance and cache drive how fast each core works — important for moderate cases and for the many single-threaded steps in a CFD workflow. SC49 leads on clock speed and cache, not core count.

• If your work is large, highly parallel meshes needing many cores, our multi-core server nodes (40, 48, even 128 cores) are the better fit.

• If your work is moderate and benefits from the fastest cores, a large cache, and generous memory, SC49 is an excellent, responsive choice.

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

A note on the 3D V-Cache

AMD's 3D V-Cache stacks extra cache directly on the processor, giving SC49 a very large 128 MB L3. For workloads whose working data fits within that cache — or benefits from more of it staying close to the cores — this can reduce trips to main memory and improve real-world speed. CFD cases vary in how much they benefit, but for cache-friendly, per-core-bound work, the large cache is a genuine advantage. We are happy to advise whether your case is a good fit.

Storage

The two 1.88 TB SATA SSDs (about 3.76 TB total) provide solid-state read/write for loading case files, writing data, and handling autosaves — responsive and roomy, with ample space for results. (For the very fastest storage, our NVMe-equipped nodes go further; SC49's strength is the CPU.)

How parallel solving works on this node

When you run Fluent in parallel, the solver partitions your mesh across the 16 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 is fast and overhead is low — and because each core is very high-clocked with a large shared cache, the per-core work is done quickly. For moderate cases, that delivers a brisk solve.

Why rent instead of buy

For a fast, high-clock CFD workstation with no hardware to own, SC49 gives you the best per-core speed in the lineup on demand — with our multi-core server nodes available when a case needs many cores.

How it works — you're in full control

SC49 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 SC49 node.

2. Set up your simulation — load your geometry and case, configure your solver settings, and run ANSYS Fluent with all 16 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 SC49 over a multi-core server node? SC49 trades core count for the fastest per-core speed in the lineup (up to 5.7 GHz) and a large 128 MB cache. For moderate cases, cache-sensitive work, and the many single-threaded steps in a CFD workflow — meshing, setup, post-processing — that makes it very fast and responsive. For large, highly parallel meshes, a multi-core server node is the better fit.

What does the 3D V-Cache do for CFD? It gives the cores a very large pool of fast cache, which can reduce trips to main memory for cache-friendly cases — improving real-world speed. The benefit varies by case; we are happy to advise.

How large a mesh can it handle? With 128 GB of RAM, memory allows fairly large meshes, but with 16 cores the practical sweet spot is moderate cases where the fast cores give a brisk solve. Choose this node for speed-per-core, not maximum mesh size. Send us your case and we will advise.

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 SC49

If you want the fastest per-core CFD performance in our lineup, a large cache, and generous memory — with a free CFD course, a month of Claude AI Premium, and a consultation hour included — SC49 is built for exactly that.

Contact MR CFD for remote-desktop access to SC49 — and we'll help you confirm it's the right tier for your simulation.