Intel Xeon L5639: specs and benchmarks
Aggregate performance score
Xeon L5639 provides poor benchmark performance at 2.78% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Xeon L5639 sales 14 February 2011. This is a Westmere-EP architecture desktop processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 2667 MHz and a locked multiplier.
Compatibility-wise, this is Intel Socket 1366 processor with a TDP of 60 Watt and a maximum temperature of 69 °C. It supports DDR3 memory.
Primary details
Xeon L5639 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 1685 | |
| Place by popularity | not in top-100 | |
| Market segment | Server | |
| Power efficiency | 4.38 | of 100.00 (Core Ultra 7 164U) |
| Architecture codename | Westmere-EP (2010−2011) | |
| Release date | 14 February 2011 (13 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 6 (Hexa-Core) | |
| Threads | 12 | |
| Base clock speed | 2.133 GHz | of 4.7 GHz (FX-9590) |
| Boost clock speed | 2.67 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 64 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 256 KB (per core) | |
| L3 cache | 12 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 32 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 239 mm2 | |
| Maximum case temperature (TCase) | 69 °C | of 105 °C (Core i7-5950HQ) |
| Number of transistors | 1,170 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + |
Compatibility
Information on Xeon L5639 compatibility with other computer components and devices: 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 | of 8 (Opteron 842) |
| Socket | 1366 | |
| Power consumption (TDP) | 60 Watt | of 3100 ‑ 4500 (Ryzen 7 7435H) |
Technologies and extensions
Technological capabilities and additional instructions supported by Xeon L5639. You'll probably need this information if you require some particular technology.
| AES-NI | + | |
| Enhanced SpeedStep (EIST) | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Xeon L5639's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR3 |
Graphics specifications
General parameters of a GPU integrated into Xeon L5639.
| Integrated graphics card | N/A |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 2.0 | of 5.0 (Core i9-12900K) |
Benchmark performance
Single-core and multi-core benchmark results of Xeon L5639. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Send your test results of Xeon L5639.
AMD equivalent
According to our data, the closest AMD alternative to Xeon L5639 is Opteron 3380, which is slower by 6% and lower by 34 positions in our ranking.
Here are some closest AMD rivals to Xeon L5639:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
