Xeon L5518 vs L5420
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2570 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.06 | no data |
| Market segment | Server | Server |
| Power efficiency | 1.03 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Harpertown (2007−2008) | Gainestown (2009−2010) |
| Release date | 25 March 2008 (18 years ago) | 30 March 2009 (17 years ago) |
| Launch price (MSRP) | $380 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of Xeon L5420 and Xeon L5518: 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 | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 8 |
| Base clock speed | 2.5 GHz | 2.133 GHz |
| Boost clock speed | 2.5 GHz | 2.4 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 6 MB (per die) | 256 KB (per core) |
| L3 cache | 12 MB L2 Cache | 8 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | 2x 107 mm2 | 263 mm2 |
| Maximum case temperature (TCase) | 57 °C | no data |
| Number of transistors | 820 million | 731 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.35V | no data |
Compatibility
Information on Xeon L5420 and Xeon L5518 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 | 2 |
| Socket | LGA771 | 1366 |
| Power consumption (TDP) | 50 Watt | 60 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5420 and Xeon L5518. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | + | no data |
| FSB parity | + | no data |
Security technologies
Xeon L5420 and Xeon L5518 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5420 and Xeon L5518 are enumerated here.
| VT-x | + | + |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5420 and Xeon L5518. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2, DDR3 Depends on motherboard | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon L5420 and Xeon L5518.
| PCIe version | 2.0 | 2.0 |
Pros & cons summary
| Recency | 25 March 2008 | 30 March 2009 |
| Threads | 4 | 8 |
| Power consumption (TDP) | 50 Watt | 60 Watt |
Xeon L5420 has 20% lower power consumption.
Xeon L5518, on the other hand, has an age advantage of 1 year, and 100% more threads.
We couldn't decide between Intel Xeon L5420 and Intel Xeon L5518. We've got no test results to judge.
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