AMD Ryzen Threadripper 3990X 64-core sTRX4
With 64 cores and 128 threads, this processor delivers a 79,718 PassMark multi-core score backed by a massive 288MB L3 cache and 88 PCIe 4.0 lanes for unmatched desktop I/O. The unlocked 4.3 GHz boost and quad-channel DDR4 support provide automatic overclocking headroom alongside extreme memory bandwidth. This CPU is best for visual effects artists and video editors who need to drastically reduce render times on complex 3D scenes and 8K timelines.
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong ai (98th percentile) 98th
- Strong multi thread (98th percentile) 98th
- Strong feature (93rd percentile) 93rd
- Strong platform (86th percentile) 86th
Cons
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 12 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Processor
| Brand | AMD |
| Series | Ryzen Threadripper |
| Model | 3990X |
| Class | hedt |
Cores & Clocks
| Cores | 64 |
| Threads | 128 |
| Base Clock | 2900 |
| Boost Clock | 4300 |
Cache
| L2 Cache | 32 |
| L3 Cache | 288 MB |
Performance
| PassMark Multi | 79684 |
| PassMark Single | 2560 |
Memory
| Memory Type | DDR4 |
| Channels | 4 |
Platform & Power
| Socket | Socket TRX4 |
| PCIe | 4 |
| PCIe Lanes | 88 |
| TDP | 280 |
| Unlocked | Yes |
vs Competition
| Spec | AMD Ryzen Threadripper 3990X | Intel Xeon w5-2455X | ALLEN BRADLEY SLC 5/05 1747-L551 | AMD EPYC 100-000000790 | AMD Ryzen Threadripper PRO 5975WX | AMD Ryzen Threadripper 7970X |
|---|---|---|---|---|---|---|
| Cores | 64 | 12 | 1 | 64 | 32 | 32 |
| Threads | 128 | 24 | - | 128 | 64 | 64 |
| Boost Clock Mhz | 4300 | 4600 | - | 3750 | 4500 | 5300 |
| L3 Cache Mb | 288 | 30 | - | 384 | 128 | 160 |
| Tdp W | 280 | 200 | - | 360 | 280 | 350 |
| Socket | Socket TRX4 | LGA 4677 | - | SP5 | Socket TR4 | TRX50 |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Feature | Platform | User Sentiment | Efficiency | Multi Thread | Social Proof | Single Thread |
|---|---|---|---|---|---|---|---|---|
| AMD Ryzen Threadripper 3990X | 98.2 | 93.3 | 85.9 | 64 | 83.7 | 97.5 | 72.4 | 72.5 |
| Intel Xeon w5-2455X Compare | 89.9 | 74.5 | 97.5 | 0 | 73.8 | 88.7 | 12.3 | 85.3 |
| ALLEN BRADLEY SLC 5/05 1747-L551 Compare | 3.3 | 20.1 | 17.5 | 0 | 3.9 | 3.9 | 38.3 | 3.1 |
| AMD EPYC 100-000000790 Compare | 99.2 | 76.8 | 99.9 | 0 | 83.9 | 98.9 | 11.8 | 78.9 |
| AMD Ryzen Threadripper PRO 5975WX Compare | 97.3 | 93.3 | 84 | 0 | 82.4 | 97.3 | 67 | 84.5 |
| AMD Ryzen Threadripper 7970X Compare | 98.6 | 93.3 | 89.8 | 0 | 83.5 | 98.8 | 69.1 | 93.7 |
Price
Value & Pricing
We started tracking prices for this product on Jun 13, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
