AMD Ryzen 9 9900X3D 12-Core AM5 Processor - 4.4GHz, 140MB Cache
AMD
AMD Ryzen 9 9900X3D 12-Core AM5 Processor - 4.4GHz, 140MB Cache
The AMD Ryzen 9 9900X3D 12-Core AM5 Processor is a high-end desktop CPU designed for gamers, content creators and streamers who need strong multi-threaded performance without compromise. Built on AMD's Zen 5 architecture with 2nd-generation 3D V-Cache technology, it stacks 140MB of on-chip cache to keep demanding workloads and games fed with data. It fits the AM5 socket platform and supports modern standards including PCIe 5.0 and DDR5 memory.
Why this product
140MB cache via 2nd-gen 3D V-Cache
A colossal 140MB of total on-chip cache (960KB L1, 12MB L2, 128MB L3) keeps game assets and working data close to the cores, reducing the penalty of fetching from slower system memory.
12 cores, 24 threads on Zen 5
Twelve physical cores with simultaneous multithreading handle gaming, recording and background tasks at the same time, all running on TSMC's 4nm FinFET process.
Up to 5.5 GHz boost clock
A 4.4 GHz base clock rises to up to 5.5 GHz under Precision Boost 2, giving single-threaded workloads like games the frequency headroom they need.
Unlocked with AMD EXPO memory support
The processor is unlocked for overclocking and supports AMD EXPO technology for straightforward DDR5 memory frequency tuning, with Precision Boost Overdrive and Curve Optimizer also available.
PCIe 5.0 and DDR5 on AM5
With 28 PCIe 5.0 lanes and support for DDR5 memory up to 192GB, the platform is ready for current-generation GPUs, NVMe drives and large memory configurations.
No cooler included — liquid cooling recommended
A thermal solution is not included in the box. AMD recommends a liquid cooler for optimal performance given the 120W default TDP and boost behaviour.
- Cores / Threads12 / 24
- Base Clock4.4 GHz
- Max Boost ClockUp to 5.5 GHz
- Total Cache140 MB
- SocketAM5
- Default TDP120W
- Memory SupportDDR5, up to 192 GB
- PCIe VersionPCIe 5.0
- SKUAMD-1940
- EAN730143315579
- Fits AMD Socket AM5 motherboards.
- Compatible chipsets: AMD A620, B650, B650E, B840, B850, X670, X670E, X870 and X870E.
- Requires DDR5 memory — supports UDIMM modules up to DDR5-5600 in dual-channel (2×1R or 2×2R) and up to DDR5-3600 in four-DIMM configurations.
- ECC memory is supported, but requires a motherboard that also supports ECC.
- No cooler is included; a liquid cooler is recommended. A separately purchased AM5-compatible cooler is required before the system will run.
- Not compatible with AM4 motherboards or DDR4 memory — this is an AM5-only, DDR5-only platform.
Best for
- High-frame-rate gaming — the 140MB 3D V-Cache is specifically designed to feed game engines with data at high frame rates, where cache capacity is often the limiting factor.
- Simultaneous gaming and streaming — 12 cores and 24 threads give enough headroom to run a game and a live encoder at the same time without dedicating a separate machine to encoding.
- Content creation workloads — video editing, 3D rendering and compilation tasks that benefit from high core counts and fast per-core clocks up to 5.5 GHz.
- Builders already on AM5 — slots directly into any compatible AM5 board, letting existing platform owners upgrade without changing their DDR5 memory or chassis.
- Users who want overclocking flexibility — unlocked multiplier, Precision Boost Overdrive, Curve Optimizer and AMD EXPO support give advanced users multiple levers to tune performance.
Trade-offs
- AM4 platform users — this processor does not fit AM4 sockets; a new AM5 motherboard and DDR5 memory are required, making it a full platform upgrade.
- Budget builds — the Enthusiast Desktop market segment positioning, mandatory platform investment (AM5 board plus DDR5 memory), and a separately purchased liquid cooler add substantially to total system cost.
- Workloads needing more than 24 threads — at 12 cores and 24 threads, heavily threaded professional workloads that scale beyond this count will benefit more from higher core-count CPUs.
- Builds requiring a bundled cooler — no thermal solution is included in the box, so builders expecting a stock cooler will need to budget for one separately.
A powerful desktop CPU, with 2nd gen AMD 3D V-Cache™ Technology for you to enjoy extreme performance for gaming, creating, streaming or any workload you choose.
Introducing the world's most advanced gaming desktop processors, the AMD Ryzen™ 9 9900X3D series processor, now with 2nd gen AMD 3D V-Cache™ technology to push your gaming and creative to new frontiers. Boosted by AMD's advanced "Zen 5" architecture and 4nm technology, you'll feel unmatched power in every moment of high-performance gaming and content creation.
AMD Ryzen™ 9 9900X3D Series processor is built with exclusive AMD 3D V-Cache™ technology, enabling a colossal 140 Megabytes of on-chip memory. You'll feel insane performance in any game or creative workload with AMD EXPO™ technology, designed for increased frequencies to unlock higher and smoother frame rates.
Performance that advances with you — AMD Socket AM5 future ready platform featuring PCIe Gen 5 with higher bandwidth capabilities. 2nd Gen AMD 3D V-Cache™ technology, AMD's exclusive, leadership solution to pack huge amounts of memory onto the chip for the ultimate game performance. AMD Ryzen Master easily personalizes your performance. AMD EXPO technology can unlock improved memory performance.
General
| Brand | AMD |
|---|---|
| Family | Ryzen |
| Series | Ryzen 9000 Series |
| Market Segment | Enthusiast Desktop |
| Form Factor | Desktops, Boxed Processor |
| Codename | Granite Ridge AM5 |
| Instruction Set | x86-64 |
Processor
| Architecture | Zen 5 |
|---|---|
| CPU Core Technology | TSMC 4nm FinFET |
| I/O Die Technology | TSMC 6nm FinFET |
| Package Die Count | 3 |
| CPU Cores | 12 |
| Threads | 24 |
| Simultaneous Multithreading | Yes |
| Base Clock | 4.4 GHz |
| Max Boost Clock | Up to 5.5 GHz |
| CPU Boost Technology | Precision Boost 2 |
| L1 Cache | 960 KB |
| L2 Cache | 12 MB |
| L3 Cache | 128 MB |
| Total Cache | 140 MB |
| Default TDP | 120W |
| Max Operating Temperature (Tjmax) | 95°C |
Memory & I/O
| CPU Socket | AM5 |
|---|---|
| System Memory Type | DDR5 (UDIMM) |
| Memory Channels | 2 |
| Max Memory | 192 GB |
| Max Memory Speed (2×1R / 2×2R) | DDR5-5600 |
| Max Memory Speed (4×1R / 4×2R) | DDR5-3600 |
| ECC Support | Yes (requires motherboard support) |
| PCIe Version | PCIe 5.0 |
| PCIe Lanes (Total / Usable) | 28 / 24 |
| Native USB 3.2 Gen 2 (10Gbps) | 4 |
| Native USB 2.0 (480Mbps) | 1 |
| NVMe Support | Boot, RAID0, RAID1, RAID5, RAID10 |
| Compatible Chipsets | AMD A620, B650, B650E, B840, B850, X670, X670E, X870, X870E |
Overclocking & Features
| 3D V-Cache Technology | Yes (2nd Gen AMD 3D V-Cache™) |
|---|---|
| Unlocked for Overclocking | Yes |
| AMD EXPO Memory Overclocking | Yes |
| Precision Boost Overdrive | Yes |
| Curve Optimizer Voltage Offsets | Yes |
| AMD Ryzen Master Support | Yes |
| Integrated Graphics | AMD Radeon Graphics |
| Graphics Core Count | 2 |
| Graphics Frequency | 2200 MHz |
| Thermal Solution Included | Not included |
| Recommended Cooler | Liquid cooler recommended |
| OS Support | Windows 11 64-bit, Windows 10 64-bit, RHEL x86 64-bit, Ubuntu x86 64-bit |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.