AMD Ryzen 9 3900XT Full Specifications
The AMD Ryzen 9 3900XT is a Desktop processor with 12 cores, launched in 2020. It is part of the Ryzen 9 lineup, using the Zen 2 architecture with Socket AM4. The core-count is effectively doubled, to 24 threads. Ryzen 9 3900XT has 64MB of L3 cache and operates at 3.8 GHz by default, but can boost up to 4.7 GHz, depending on the workload. AMD is building the Ryzen 9 3900XT on a 7 nm production process. You may freely adjust the unlocked multiplier on Ryzen 9 3900XT, which simplifies overclocking greatly, as you can dial in any overclocking frequency up to 4.8GHz. With a TDP of 105 W, the Ryzen 9 3900XT consumes a lot of power, so good cooling is definitely needed. AMD's processor supports DDR4 memory with a dual-channel interface. It is worth noting that this processor does not have integrated graphics. This processor can run on motherboards with the following chipsets: A320, B350, B450, X370, X470, X570.
AMD Ryzen 9 3900XT General
| Foundry | TSMC |
|---|---|
| Manufacturer | AMD |
| Codename | Zen 2 |
| Core Family | Matisse Refresh |
| Market | Desktop |
| Series | AMD Ryzen 9 |
| Type | Desktop |
| Architecture | Zen 2 |
| Achitecture codename | Zen2 |
| Microarchitecture | Zen 2 |
| Market price | $ 440 |
| Production Status | Active |
| Release date | 7 July 2020 |
| Released | Jul 2020 |
| Launch price (MSRP) | $499 |
| Price now | $588 |
| Place in performance rating | 8 |
| Value for money (0-100) | 16.21 |
| Manufacturing process technology | 7 nm |
| Process Size | 7 nm |
AMD Ryzen 9 3900XT Compatibility
| Power consumption (TDP) | 125 Watt |
|---|---|
| Max number of CPUs in a configuration | 1 (Uniprocessor) |
| PCIe lanes | 20 |
| PCIe version | 4.0 |
| Socket | AM4 |
AMD Ryzen 9 3900XT Benchmarks
| # of Cores | 12 |
|---|---|
| # of Threads | 24 |
| Base Clock | 100 MHz |
| Boost Clock | 4.8 GHz |
| CPU Cores | 12 |
| CPU Threads | 24 |
| Cache L1 | 96K (per core) |
| Cache L2 | 512K (per core) |
| Cache L3 | 64MB |
| Core Clock | 4.1 GHz |
| Core Count | 12 |
| Frequency | 4.1 GHz |
| Hyperthreading | Yes |
| L1 Cache | 12 x 32 kB Instruction 12 x 64 kB Data |
| L1 cache | 96K (per core) |
| L2 Cache | 12 x 512 kB |
| L2 cache | 512K (per core) |
| L3 Cache | 4 x 16 MB |
| L3 cache | 64 MB |
| L3-Cache | 64.00 MB |
| Maximum frequency | 4.8 GHz |
| Simultaneous Multithreading | Yes |
| TDP | 105 W |
| TDP down | -- |
| TDP up | -- |
| Turbo (1 Core) | 4.80 GHz |
| Turbo (12 Cores) | 4.40 GHz |
| Turbo Clock | up to 4.8 GHz |
AMD Ryzen 9 3900XT Memory Specifications
| ECC | Yes |
|---|---|
| ECC Support | No |
| Max memory channels | 2 |
| Maximum Supported Memory | 128 GB |
| Maximum memory bandwidth | 47.68 GB / s |
| Memory Support | DDR4 |
| Memory channels | 2 |
| Memory type | DDR4-3200 |
| Supported memory types | DDR4-3200 |
| Max. Memory | 128 GB |
AMD Ryzen 9 3900XT Technical Specs
| 64 bit support | + |
|---|---|
| Die Size | unknown |
| Includes CPU Cooler | No |
| Multiplier | 41.0x |
| Multiplier Unlocked | Yes |
| Number of cores | 12 |
| Number of threads | 24 |
| Overclocking | Yes |
| Package | |
| Part # | 100-000000023 |
| Part# | unknown |
| SMP # CPUs | 1 |
| Technology | 7 nm |
| Tjunction max. | 95 °C |
| Transistor count | 19,200 million |
| Transistors | 19,200 million |
| Unlocked | + |
| Voltage | variable |
| tCaseMax | unknown |
AMD Ryzen 9 3900XT Integrated Graphics
| DirectX Version | |
|---|---|
| Execution units | |
| GPU (Turbo) | No turbo |
| GPU frequency | |
| Generation | |
| Integrated Graphics | None |
| Integrated graphics | - |
| Lithography | 7 nm |
| Max. displays | 0 |
AMD Ryzen 9 3900XT Technologies and Extensions
| AES-NI | + |
|---|---|
| AVX | + |
AMD Ryzen 9 3900XT Virtualization Technologies
| AMD-V | + |
|---|---|
| Virtualization | AMD-V, SEV |
AMD Ryzen 9 3900XT Other
| Packaging | OEM/Tray |
|---|
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