Features of AMD Ryzen 9 9900X3D 9th Generation Processor ( 5.5 GHz / 12 Cores / 24 Threads )
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The AMD Ryzen 9 9900X3D is a desktop processor with 12 cores, launched in January 2025. It is part of the Ryzen 9 lineup, using the Zen 5 (Granite Ridge) architecture with Socket AM5. Thanks to AMD Simultaneous Multithreading (SMT) the core-count is effectively doubled, to 24 threads. Ryzen 9 9900X3D has 128 MB of L3 cache and operates at 4.4 GHz by default, but can boost up to 5.5 GHz, depending on the workload. AMD is building the Ryzen 9 9900X3D on a 4 nm production process using 16,630 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of TSMC. You may freely adjust the unlocked multiplier on Ryzen 9 9900X3D, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
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With a TDP of 120 W, the Ryzen 9 9900X3D consumes a lot of power, so good cooling is definitely needed. AMD’s processor supports DDR5 memory with a dual-channel interface. The highest officially supported memory speed is 5600 MT/s, but with overclocking (and the right memory modules) you can go even higher. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. For communication with other components in the system, Ryzen 9 9900X3D uses a PCI-Express Gen 5 connection. This processor features the Radeon Graphics integrated graphics solution.
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Specifications of AMD Ryzen 9 9900X3D 9th Generation Processor ( 5.5 GHz / 12 Cores / 24 Threads )
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| Name | AMD Ryzen鈩?9 9900X3D |
| Series | Ryzen 9000 Series |
| Form Factor | Desktops, Boxed Processor |
| Product Code | 100-100001368WOF |
| AMD PRO Technologies | No |
| Consumer Use | Yes |
| Regional Availability | Global |
| Former Codename | Granite Ridge AM5 |
| Architecture | Zen 5 |
| # of CPU Cores | 12 |
| Multithreading (SMT) | Yes |
| # of Threads | 24 |
| Max. Boost Clock | Up to 5.5 GHz |
| Base Clock | 4.4 GHz |
| L1 Cache | 960 KB |
| L2 Cache | 12 MB |
| L3 Cache | 128 MB |
| Default TDP | 120W |
| Processor Technology for CPU Cores | TSMC 4nm FinFET |
| Processor Technology for I/O Die | TSMC 6nm FinFET |
| Package Die Count | 3 |
| Unlocked for Overclocking | Yes |
| AMD EXPO鈩?Memory Overclocking Technology | Yes |
| Precision Boost Overdrive | Yes |
| Curve Optimizer Voltage Offsets | Yes |
| AMD Ryzen鈩?Master Support | Yes |
| CPU Socket | AM5 |
| Supporting Chipsets | A620, X670E, X670, B650E, B650, X870E, X870, B840, B850 |
| CPU Boost Technology | Precision Boost 2 |
| Instruction Set | x86-64 |
| Supported Extensions | AES, AMD-V, AVX512, AVX2, AVX, FMA3, MMX-plus, SHA, SSE2, SSE4.2, SSE4A, SSE4.1, SSE3, SSSE3, SSE, x86-64 |
| Thermal Solution (PIB) | Not Included |
| Recommended Cooler | Liquid cooler recommended for optimal performance |
| Max. Operating Temperature (Tjmax) | 95掳C |
| *OS Support | Windows 11 鈥?64-Bit Edition, Windows 10 鈥?64-Bit Edition, RHEL x86 64-Bit, Ubuntu x86 64-Bit |
| Connectivity | |
| Native USB 4 (40Gbps) | 4 |
| Native USB 3.2 Gen 1 (5Gbps) | 1 |
| PCI Express庐 Version | PCIe庐 5.0 |
| Native PCIe庐 Lanes (Total/Usable) | 28, 24 |
| NVMe Support | Boot, RAID0, RAID1, RAID5, RAID10 |
| System Memory Type | DDR5 |
| Memory Channels | 2 |
| Max. Memory | 192 GB |
| System Memory Subtype | UDIMM |
| Max Memory Speed | 2x1R DDR5-5600 |
| 2x2R DDR5-5600 | |
| 4x1R DDR5-3600 | |
| 4x2R DDR5-3600 | |
| ECC Support | Yes (Requires mobo support) |
| Graphics Capabilities | |
| Graphics Model | AMD Radeon鈩?Graphics |
| Graphics Core Count | 2 |
| Graphics Frequency | 2200 MHz |
| USB Type-C庐 DisplayPort鈩?Alternate Mode | Yes |
| Product IDs | |
| Product ID Boxed | 100-1000001368WOF |
| Key Features | |
| Supported Technologies | AMD EXPO鈩?Technology, AMD Ryzen鈩?Technologies |
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