Xeon 6513P-B vs Ryzen 9 3900
Primary details
Comparing Ryzen 9 3900 and Xeon 6513P-B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 321 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 20.06 | no data |
| Market segment | Desktop processor | Server |
| Series | AMD Matisse (Ryzen 3000 Desktop) | no data |
| Power efficiency | 28.06 | no data |
| Designer | AMD | Intel |
| Architecture codename | Matisse (Zen 2) (2019−2020) | Granite Rapids (2024−2025) |
| Release date | 24 September 2019 (5 years ago) | 24 February 2025 (recently) |
| Launch price (MSRP) | $499 | $1,399 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 3900 and Xeon 6513P-B basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 12 (Dodeca-Core) | 20 (Icosa-Core) |
| Threads | 24 | 40 |
| Base clock speed | 3.1 GHz | 2 GHz |
| Boost clock speed | 4.3 GHz | 3.3 GHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 64 MB | 80 MB (shared) |
| Chip lithography | 7 nm, 12 nm | 5 nm |
| Die size | 2x 74 mm2 | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 7,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 3900 and Xeon 6513P-B compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | AM4 | Intel BGA 4368 |
| Power consumption (TDP) | 65 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 3900 and Xeon 6513P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 9 3900 and Xeon 6513P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 3900 and Xeon 6513P-B are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900 and Xeon 6513P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 3900 and Xeon 6513P-B.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 24 | 32 |
Pros & cons summary
| Recency | 24 September 2019 | 24 February 2025 |
| Physical cores | 12 | 20 |
| Threads | 24 | 40 |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 65 Watt | 130 Watt |
Ryzen 9 3900 has 100% lower power consumption.
Xeon 6513P-B, on the other hand, has an age advantage of 5 years, 66.7% more physical cores and 66.7% more threads, and a 40% more advanced lithography process.
We couldn't decide between AMD Ryzen 9 3900 and Intel Xeon 6513P-B. We've got no test results to judge.
Note that Ryzen 9 3900 is a desktop processor while Xeon 6513P-B is a server/workstation one.
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