AMD Ryzen Threadripper PRO 5975WX vs AMD Ryzen Threadripper 3970X
Buy the Threadripper PRO 5975WX for a workstation that needs 8 memory channels, ECC, and up to 2TB of RAM. Buy the 3970X if you already own a TRX40 board and want 32 cores for less. The 5975WX costs far more, and its sWRX8 platform adds board cost on top.
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Choose the Threadripper PRO 5975WX if you run memory-bound work like CFD, large datasets, or many VMs and need 8-channel ECC DDR4.
Pros
- Zen 3 cores give higher IPC than Zen 2
- 8 memory channels and 2TB ECC capacity
- 128 PCIe 4.0 lanes for many GPUs and NVMe drives
- 4.5 GHz boost
Cons
What separates them
| AMD Ryzen Threadripper PRO 5975WX | AMD Ryzen Threadripper 3970X | |
|---|---|---|
| Architecture | Zen 3 | Zen 2 |
| Cores / threads | 32 / 64 | 32 / 64 |
| Base / boost clock | 3.6 / 4.5 GHz | 3.7 GHz base, boost not listed |
| Memory channels | 8 channels DDR4-3200 | 4 channels DDR4 (TRX40) |
| Max memory | 2TB with ECC | 256GB typical on TRX40 |
| PCIe lanes | 128 lanes PCIe 4.0 | 88 lanes PCIe 4.0 |
| Socket / platform | sWRX8, WRX80 boards | sTRX4, TRX40 boards |
| TDP | 280 W |
Price history
- AMD Ryzen Threadripper PRO 5975WX: lowest $1,489.00 on Nov 3 at Newegg.com.
- AMD Ryzen Threadripper 3970X: lowest $1,100.00 on Nov 3 at StarMicroInc.Net.
Prices at every store
AMD Ryzen Threadripper PRO 5975WX
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AMD Ryzen Threadripper 3970X
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Specs compared
| Spec | AMD Ryzen Threadripper PRO 5975WX | AMD Ryzen Threadripper 3970X |
|---|---|---|
| Clock Speed | 3.6 GHz | 3.7 GHz |
| Number Of Cores | 32 | 32-core |
| Supports Overclocking | Yes | Yes |
| Socket Type | sWRX8 | — |
| Integrated Graphics | No | — |
| Manufacturer | AMD | — |
| Boost Clock Speed | 4.5 GHz | — |
| Number Of Threads | 64 | — |
| Thermal Design Power (TDP) | 280 W | — |
| RAM Type | DDR4 | — |
What reviewers say
AMD Ryzen Threadripper PRO 5975WX
Owners of Threadripper PRO workstation chips generally report strong multithreaded performance and stable operation under sustained render and simulation loads. The main complaints center on platform cost, heat output and the need for serious cooling.
What people mention
- PerformancePraisedOwners report strong multithreaded throughput in rendering and simulation.
- Platform costCriticisedThe sWRX8 motherboard and memory add substantial cost over mainstream platforms.
- Heat and powerCriticisedThe 280 W TDP requires a high-end cooler and a robust power supply.
Questions and answers
- Which is faster for rendering?
- The 5975WX. Zen 3 raises per-core performance, and 8 memory channels feed 32 cores better than 4. Expect a clear lead in CPU rendering and simulation.
- Do they use the same motherboard?
- No. The 5975WX needs an sWRX8 WRX80 board. The 3970X uses an sTRX4 TRX40 board. Neither chip fits the other's socket.
- Is the 5975WX worth the extra cost?
- Only if you need 8-channel ECC memory, 2TB capacity, or 128 PCIe lanes. For plain 32-core compute on a budget, the 3970X is the cheaper path.
- Which supports more RAM?
- The 5975WX, up to 2TB of ECC DDR4-3200 across 8 channels. TRX40 boards for the 3970X typically top out around 256GB.
- Do both overclock?
- Yes, both are unlocked. Both are 280 W parts, so overclocking needs a strong cooler and VRM on either platform.
- Which lasts longer as a workstation?
- The 5975WX, because its memory capacity and PCIe lane count leave more room to grow. The 3970X is limited by its 4-channel TRX40 platform.
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