Ryzen 9 9950X3D vs Xeon L5639
Aggregate performance score
Ryzen 9 9950X3D outperforms Xeon L5639 by a whopping 1490% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1981 | 89 |
| Place by popularity | not in top-100 | 45 |
| Cost-effectiveness evaluation | no data | 68.53 |
| Market segment | Server | Desktop processor |
| Power efficiency | 1.77 | 9.95 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Westmere-EP (2010−2011) | Granite Ridge (2024−2026) |
| Release date | 14 February 2011 (14 years ago) | 6 January 2025 (1 year ago) |
| Launch price (MSRP) | no data | $699 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon L5639 and Ryzen 9 9950X3D 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 | 6 (Hexa-Core) | 16 (Hexadeca-Core) |
| Threads | 12 | 32 |
| Base clock speed | 2.133 GHz | 4.3 GHz |
| Boost clock speed | 2.67 GHz | 5.7 GHz |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 256 KB (per core) | 1 MB (per core) |
| L3 cache | 12 MB (shared) | 128 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 239 mm2 | 2x 70.6 mm2 |
| Maximum case temperature (TCase) | 69 °C | no data |
| Number of transistors | 1,170 million | 16,630 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon L5639 and Ryzen 9 9950X3D 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 | 2 | 1 |
| Socket | 1366 | AM5 |
| Power consumption (TDP) | 60 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5639 and Ryzen 9 9950X3D. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Xeon L5639 and Ryzen 9 9950X3D technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5639 and Ryzen 9 9950X3D 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 Xeon L5639 and Ryzen 9 9950X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by Xeon L5639 and Ryzen 9 9950X3D.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 24 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 2.52 | 40.06 |
| Recency | 14 February 2011 | 6 January 2025 |
| Physical cores | 6 | 16 |
| Threads | 12 | 32 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 60 Watt | 170 Watt |
Xeon L5639 has 183.3% lower power consumption.
Ryzen 9 9950X3D, on the other hand, has a 1489.7% higher aggregate performance score, an age advantage of 13 years, 166.7% more physical cores and 166.7% more threads, and a 700% more advanced lithography process.
The AMD Ryzen 9 9950X3D is our recommended choice as it beats the Intel Xeon L5639 in performance tests.
Be aware that Xeon L5639 is a server/workstation processor while Ryzen 9 9950X3D is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
