# AMD Ryzen Threadripper 3990X Desktop CPU: AMD Also called amd ryzen threadripper 3990x, ryzen threadripper 3990x, 3990x, ryzen-threadripper-3990x AMD, Desktop CPU, Zen AMD Threadripper desktop processor on Zen, with 64 cores and 128 threads and 512 KB L2, 128 MB L3 at 280 W TDP on a 7 nm process addressing up to 256 GB and no integrated graphics. ## What you need to know AMD Ryzen Threadripper 3990X is a aging desktop cpu. AMD Ryzen Threadripper 3990X launched in January 10, 2020., It has 64 cores and 128 threads on Zen, dropping into the sTRX4 socket. Treat the spec table as the facts. Age alone does not tell you to throw it out. - **Still good?**: Yes, for lighter work **Product age**: 6 years old **Upgrade pressure**: Moderate Feex says This SKU has no picture of its own. If the machine has no discrete GPU, a black screen after install is expected, not a dead CPU. ## What this hardware means today Age and usefulness are not the same number. This page keeps them separate. - **Performance today**: **Good.** Good for the class when RAM, storage, and the GPU keep up. **Product age 6 years old**: **Aging.** Launched January 10, 2020. Newer platforms exist. That does not make this chip unusable by itself. **Support status **: **Supported.** Current Windows and current applications still run on this class of CPU. Platform BIOS support depends on the motherboard or laptop vendor. **Upgrade pressure **: **Moderate.** Upgrade pressure comes from platform features and specific CPU-bound work, not from the chip being unusable. ## Where does it sit? Zen sits on AMD's recent Zen desktop and laptop timeline. Later chips keep the brand and change the core. Zen 2 Zen 3 Zen 4 Zen 5 ## Performance context These are qualitative readings, not a fake 8.7 out of 10. Workload still wins. ### Gaming: Good Playable in lighter titles. A weak GPU will hide whatever this chip still has. ### Productivity: Good 64 cores cover office, browser, and compile work in this class. ### Multithreaded workloads: Very Good 128 threads. Heavy encodes still scale further on higher-core parts. ### General use: Excellent Everyday Windows use is not where most people notice this SKU first. ### Efficiency: Average Rated 280 W base power. That is a platform number, not a promise about your cooler. ## Should you upgrade? Probably not based on CPU performance alone. ### Upgrade makes more sense if - Your workload is strongly CPU limited - You need a newer platform for memory, I/O, or chipset features - You need substantially more multicore performance - You need newer connectivity that your current board cannot offer ### Upgrade makes less sense if - The GPU is the real bottleneck - Current applications are already responsive - The CPU rarely limits your workload ## Specifications Figures below follow the Feex Hardware Database record for this SKU. Fields without a recorded value are omitted. ### Processor AMD Ryzen Threadripper 3990X is built on Zen using a 7 nm process. | Manufacturer | AMD | | --------------------- | ------------ | | Family | Threadripper | | Architecture | Zen | | Codename | Castle Peak | | Generation | 3 | | Manufacturing process | 7 nm | | Segment | Desktop | ### Cores and threads AMD Ryzen Threadripper 3990X has 64 cores and 128 threads. | Cores | 64 | | ------- | --- | | P-cores | 64 | | Threads | 128 | ### Clock speeds Base clock is 2.9 GHz. Boost reaches 4.3 GHz. | Base frequency | 2.9 GHz | | -------------- | ------- | | Max boost | 4.3 GHz | ### Cache Cache on this sheet is 128 MB L3. | L2 cache | 512 KB | | ----------- | -------- | | L3 cache | 128 MB | | Total cache | 128.5 MB | ### Memory AMD Ryzen Threadripper 3990X addresses 256 GB across 4 memory channels. | Max capacity | 256 GB | | ------------ | ------ | | Channels | 4 | ### Package and power AMD Ryzen Threadripper 3990X uses the sTRX4 socket and a 280 W TDP. | Socket | sTRX4 | | ------ | ---------------------- | | TDP | 280 W | | PCIe | Revision 4.0, 64 lanes | ### Integrated graphics AMD Ryzen Threadripper 3990X does not include integrated graphics. | Integrated graphics | None | | ------------------- | ---- | ### Market AMD Ryzen Threadripper 3990X launched January 10, 2020. | Launch date | January 10, 2020 | | ----------- | ---------------- | | Model | 3990X | ### Features AMD Ryzen Threadripper 3990X records 34 instruction sets on this sheet. | Instruction sets | AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)BMI1BMI2CLMULF16CPCLMULQDQRDRANDRDSEEDSSE4.1SSE4.2x86-64-v3ABMADXCMPXCHG16BFXSRInvariant TSCLZCNTPOPCNTRDTSCPSSESSE2SSE3SSSE3x86-64-v2XSAVEXSAVEOPTMMXMOVBE | | ---------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Security | AMD SEVAMD SME | | Virtualization | AMD SVMAMD-V (Hardware Virtualization)NPT / RVIIOMMU | | OS capabilities | Docker / Hyper-V readyLinux KVM readyWindows 11 eligibleAndroid emulator readyWSL2 ready | ## Independent scores ### These are PassMark CPU figures. They are not Feex measurements. | Single-core score | 2,559 | | -------------------- | ------- | | Multi-core score | 79,707 | | Overall score | 14,282 | | Productivity score | 55,392 | | Creator score | 48,445 | | Engineering score | 111,590 | | Gaming score | 27,604 | | Performance per watt | 284.7 | ## Compatibility | Socket | sTRX4 | | -------- | ------------------------------------------------------------------------------------------------- | | Board | A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision. | | Memory | up to 256 GB | | Graphics | Requires a discrete GPU. This SKU has no iGPU. | A shared socket is not automatic compatibility. Boards often need a BIOS update before a newer chip in the same socket will post. Cooler clearance, VRM quality, and power limits matter as much as the socket name. Do not expect a display from the motherboard video ports. This SKU has no integrated graphics. ### No display after install This SKU has no integrated graphics. A machine with no discrete GPU will not show a picture. That is expected, not a dead CPU. ## Related These entities connect to this article. Type is shown on every link. [Zen 4: Architecture](https://feex.it/wiki/hardware/system/zen-4)[Processors: Hardware](https://feex.it/wiki/hardware/cpu) ## Sources and verification Reviewed by Feex editorial. Last verified August 2026 Status: Partially Verified. [How we research](https://feex.it/wiki/research). - [Feex Hardware Database ](https://foxhole.feex.it/cpu/amd-ryzen-threadripper-3990x)· Specification source used for this sheet. CC BY 4.0. - [PassMark Software ](https://www.cpubenchmark.net/cpu.php?cpu=AMD+Ryzen+Threadripper+3990X)· CPU benchmark page for AMD Ryzen Threadripper 3990X ## Was this article useful? A yes or no is enough. Pick a reason if you want, or add a short note. Quick facts The short identity of this page. Specs, sources, and the full story stay in the article. - **Manufacturer**: AMD **Family**: Threadripper **Architecture**: Zen **Socket**: sTRX4 **Launch**: 2020 **Status**: Aging Partially Verified: Last verified August 2026 --- Source: [Canonical Feex Wiki page](https://feex.it/wiki/hardware/cpu/amd-ryzen-threadripper-3990x/) [Developer guide](https://feex.it/wiki/developers/) | [API policy](https://feex.it/developers/api-policy/) | [Agent guidance](https://feex.it/wiki/llms.txt)