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- Name
- AMD Ryzen™ Threadripper™ 3990X
- Family
- Ryzen Threadripper
- Series
- Ryzen Threadripper 3000 Series
- Form Factor
- Desktops , Boxed Processor
- Market Segment
- HEDT
- AMD PRO Technologies
- No
- Regional Availability
- Global , China , NA , EMEA , APJ , LATAM
- Former Codename
- Castle Peak
- Processor Architecture
- Zen 2
- # of CPU Cores
- 64
- Multithreading (SMT)
- Yes
- # of Threads
- 128
- Max. Boost Clock
- Up to 4.3 GHz
- Base Clock
- 2.9 GHz
- L1 Cache
- 4096 KB
- L2 Cache
- 32 MB
- L3 Cache
- 256 MB
- Default TDP
- 280W
- Processor Technology for CPU Cores
- TSMC 7nm FinFET
- Processor Technology for I/O Die
- 12nm (Globalfoundries)
- CPU Compute Die (CCD) Size
- 74mm²
- I/O Die (IOD) Size
- 416mm²
- Package Die Count
- 5
- Total Transistor Count
- 39.54 Billion
- Unlocked for Overclocking
- Yes
- CPU Socket
- sTRX4
- Supporting Chipsets
- TRX40
- CPU Boost Technology
- Precision Boost 2
- Instruction Set
- x86-64
- Supported Extensions
- AES , AMD-V , AVX , AVX2 , FMA3 , MMX-plus , SHA , SSE , SSE2 , SSE3 , SSE4.1 , SSE4.2 , SSE4A , SSSE3 , x86-64
- Thermal Solution (PIB)
- Cooler Not Included, Liquid Cooling Recommended
- Max. Operating Temperature (Tjmax)
- 95°C
- Launch Date
- 02/07/2020
- *OS Support
- Windows 11 - 64-Bit Edition , Windows 10 - 64-Bit Edition , RHEL x86 64-Bit
- Native USB 3.2 Gen 2 (10Gbps)
- 4
- Native USB 3.2 Gen 1 (5Gbps)
- 0
- Native USB 2.0 (480Mbps)
- 0
- Native SATA Ports
- 0
- PCI Express® Version
- PCIe® 4.0
- Native PCIe® Lanes (Total/Usable)
- 64 , 56
- Additional Usable PCIe Lanes from Motherboard
- TRX4016x Gen 4
- NVMe Support
- Boot , RAID0 , RAID1 , RAID10
- System Memory Type
- DDR4
- Memory Channels
- 4
- Max. Memory
- 256 GB
- System Memory Subtype
- UDIMM
- Max Memory Speed
- 4x1RDDR4-32004x2RDDR4-32008x1RDDR4-29338x2RDDR4-2677
- ECC Support
- Yes (Requires mobo support)
- Graphics Model
- Discrete Graphics Card Required
- Product ID Boxed
- 100-100000163WOF
- Product ID Tray
- 100-000000163
- PCIe® DMA Security
- Yes
- USB DMA Security
- Yes
- AMD Enhanced Virus Protection (NX bit)
- Yes
- Supported Technologies
- AMD Zen Core Architecture , AMD Ryzen™ Master Utility