AMD Ryzen Threadripper PRO 3995WX vs AMD Ryzen Threadripper PRO 5995WX
Both are 64-core, 128-thread sWRX8 workstation chips with the same 280 W TDP, so the choice comes down to generation and memory support. The 5995WX is the newer Zen 3 part with a 4.5 GHz boost, 128 PCIe 4.0 lanes and up to 2 TB of eight-channel DDR4. The 3995WX is the older Zen 2 part with a 4.2 GHz boost and a much lower stated memory ceiling. Buy the 5995WX unless the 3995WX is clearly cheaper for a build that will never exceed its memory limit.
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Choose the Ryzen Threadripper PRO 3995WX if you find it at a clearly lower price and your workload fits within its stated memory ceiling and PCIe 3.0-era platform.
- Same 64 cores and 128 threads as the newer chip
- 280 W TDP matches the 5995WX, so cooling needs are similar
- Zen 2 platform boards and memory can be cheaper on the used market
- ECC DDR4 support
What separates them
| AMD Ryzen Threadripper PRO 3995WX | AMD Ryzen Threadripper PRO 5995WX | |
|---|---|---|
| Microarchitecture | Zen 2 | Zen 3 |
| Boost clock | 4.2 GHz | 4.5 GHz |
| Base clock | 2.7 GHz | 2.7 GHz |
| Cores / threads | 64 / 128 | 64 / 128 |
| Max memory capacity | 32 GB (as listed) | 2 TB |
| Memory channels | Eight (listed as four/eight) | Eight |
| PCIe lanes | Not listed as PCIe 4.0 | 128 PCIe 4.0 lanes |
| TDP | 280 W | 280 W |
Price history
- AMD Ryzen Threadripper PRO 3995WX: lowest $2,700.99 on Nov 3 at Amazon.
- AMD Ryzen Threadripper PRO 5995WX: lowest $1,839.99 on Nov 3 at Newegg.com.
Prices at every store
AMD Ryzen Threadripper PRO 3995WX
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Specs compared
| Spec | AMD Ryzen Threadripper PRO 3995WX | AMD Ryzen Threadripper PRO 5995WX |
|---|---|---|
| Socket Type | Socket sWRX8 | sWRX8 |
| Integrated Graphics | No | No |
| Manufacturer | AMD | AMD |
| Clock Speed | 2.7 GHz | 2.7 GHz |
| Number Of Cores | 64 | 64 |
| Boost Clock Speed | 4.2 GHz | 4.5 GHz |
| Number Of Threads | 128-Threads | 128 |
| Thermal Design Power (TDP) | 280 W | 280 W |
| Supports Overclocking | Yes | Yes |
| RAM Type | DDR4 | DDR4 |
What reviewers say
AMD Ryzen Threadripper PRO 3995WX
Owners of the 3995WX generally report strong multi-threaded throughput in rendering and simulation, and the eight-channel ECC memory is valued in workstation builds. Complaints center on platform cost, heat and the age of the Zen 2 core.
- Multi-core performancePraisedOwners report that 64 cores cut render and simulation times substantially.
- Platform costCriticisedBuyers say sWRX8 motherboards and cooling add a lot to the total build cost.
- Power and heatCriticisedSustained loads draw near the 280 W TDP and need serious cooling.
Questions and answers
- Which is faster for rendering?
- The 5995WX. Zen 3 raises per-core performance and the 4.5 GHz boost helps, so it wins in both single-threaded and most multi-threaded rendering despite the same core count.
- Do they use the same motherboard?
- Both use Socket sWRX8, but check the board's BIOS support. WRX80 boards generally support both, though older boards may need a BIOS update for the 5995WX.
- How much memory can each take?
- The 5995WX supports up to 2 TB of eight-channel registered ECC DDR4. The 3995WX listing states a 32 GB maximum, which is far below what a 64-core workstation usually needs.
- Is the 5995WX worth the extra cost?
- Yes for new builds. The newer cores, PCIe 4.0 lanes and 2 TB memory ceiling matter for GPU-heavy and memory-hungry work. The 3995WX only makes sense at a steep discount.
- Which runs cooler?
- Neither is cool. Both are 280 W TDP parts, so plan on a Threadripper-class cooler and strong case airflow for either.