Wholesale AMD Ryzen Threadripper 3990X / PRO 3955WX High Performance CPUs – Fast Delivery
Here’s a detailed comparison table between the AMD Ryzen Threadripper 3990X and Ryzen Threadripper PRO 3955WX:
| Feature | Threadripper 3990X | Threadripper PRO 3955WX | Key Differences |
|---|---|---|---|
| Architecture | Zen 2 (7nm) | Zen 2 (7nm) | Same architecture |
| Cores/Threads | 64/128 | 16/32 | 3990X has 4× more cores |
| Base Clock | 2.9 GHz | 3.9 GHz | 3955WX +1.0 GHz base |
| Boost Clock | 4.3 GHz | 4.3 GHz | Same boost |
| L2 Cache | 32MB | 8MB | 3990X has 4× more |
| L3 Cache | 256MB | 64MB | 3990X has 4× more |
| TDP | 280W | 280W | Same TDP |
| Memory Support | Quad-channel DDR4-3200 | Octa-channel DDR4-3200 | PRO has double memory channels |
| PCIe Lanes | 72 PCIe 4.0 | 128 PCIe 4.0 | PRO has 56 more lanes |
| Socket | sTRX4 | sWRX8 | Different sockets |
| Security Features | Standard | PRO Security Suite | 3955WX has enterprise security |
| ECC Memory Support | Yes | Yes (Enhanced) | PRO has better ECC |
| Target Market | HEDT/Workstation | Professional Workstation | 3955WX for enterprise |
1. AMD Ryzen Threadripper 3990X – The 64-Core Behemoth
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Architecture: Zen 2 (7nm)
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Cores/Threads: 64/128 – The highest core count in a desktop CPU at launch
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Clock Speeds: 2.9 GHz (Base) – 4.3 GHz (Boost)
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Cache: 32MB L2 + 256MB L3 (Largest L3 cache ever in a consumer CPU)
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TDP: 280W
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Memory: Quad-channel DDR4-3200
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PCIe Lanes: 72 (PCIe 4.0)
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Socket: sTRX4
Description:
The Threadripper 3990X is a monstrous 64-core, 128-thread CPU built for extreme multi-threaded workloads. It dominates in tasks like 3D rendering, video encoding, scientific simulations, and VFX production, where raw core count matters more than single-thread speed.
Despite its low base clock (2.9 GHz), it compensates with massive cache (256MB L3) and high boost clocks (up to 4.3 GHz) when fewer cores are active. It’s ideal for content creators, researchers, and engineers who need maximum parallel processing power.
Best For:
✔ 3D rendering (Blender, Maya, Cinema 4D)
✔ Video production (8K/4K editing, encoding)
✔ Scientific computing & simulations
✔ Virtualization & high-core-count workloads
2. AMD Ryzen Threadripper PRO 3955WX – The Workstation Specialist
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Architecture: Zen 2 (7nm)
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Cores/Threads: 16/32 – More balanced for mixed workloads
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Clock Speeds: 3.9 GHz (Base) – 4.3 GHz (Boost)
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Cache: 8MB L2 + 64MB L3
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TDP: 280W
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Memory: Octa-channel DDR4-3200 (Double the bandwidth)
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PCIe Lanes: 128 (PCIe 4.0) – More expansion for GPUs/NVMe
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Socket: sWRX8 (Workstation-exclusive)
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Security: AMD PRO Technologies (Encryption, Secure Boot, Manageability)
Description:
The Threadripper PRO 3955WX is part of AMD’s workstation-focused PRO lineup, designed for CAD, engineering, and enterprise workloads. While it has fewer cores (16 vs. 64), it compensates with:
✔ Higher base clock (3.9 GHz vs. 2.9 GHz) – Better for single-threaded tasks
✔ 128 PCIe lanes – Supports multiple GPUs, NVMe drives, and accelerators
✔ Octa-channel memory – Double the bandwidth of the 3990X
✔ Enterprise security & manageability – Ideal for IT-managed workstations
Best For:
✔ CAD & engineering (SolidWorks, AutoCAD, Revit)
✔ Virtualization & multi-GPU setups
✔ Enterprise workstations with ECC memory
✔ High-speed storage & expansion (PCIe 4.0 x128)
Comparison Summary: 3990X vs. 3955WX
| Aspect | Threadripper 3990X | Threadripper PRO 3955WX |
|---|---|---|
| Cores/Threads | 64/128 (Extreme MT) | 16/32 (Balanced) |
| Base Clock | 2.9 GHz | 3.9 GHz (Faster ST) |
| Memory Channels | Quad-channel | Octa-channel (2× BW) |
| PCIe Lanes | 72 | 128 (More expansion) |
| Use Case | Rendering, VFX, HPC | CAD, Engineering, Virtualization |
Which One Should You Choose?
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Need maximum cores? → 3990X (64 cores for rendering, encoding, simulations)
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Need PCIe/memory bandwidth? → 3955WX (128 lanes, 8-channel RAM for workstations)
