Pentium D 955 vs Xeon L5618
Primary details
Comparing Xeon L5618 and Pentium D 955 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Architecture codename | Westmere-EP (2010−2011) | Presler (2005−2007) |
| Release date | 16 March 2010 (14 years ago) | January 2006 (18 years ago) |
Detailed specifications
Xeon L5618 and Pentium D 955 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 | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 8 | no data |
| Base clock speed | 1.87 GHz | no data |
| Boost clock speed | 2.26 GHz | 3.46 GHz |
| L1 cache | 64 KB (per core) | 28 KB |
| L2 cache | 256 KB (per core) | 4096 KB |
| L3 cache | 12 MB (shared) | 0 KB |
| Chip lithography | 32 nm | 65 nm |
| Die size | 239 mm2 | 140 mm2 |
| Maximum core temperature | 87 °C | no data |
| Number of transistors | 1,170 million | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon L5618 and Pentium D 955 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 | FCLGA1366,LGA1366 | 775 |
| Power consumption (TDP) | 40 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5618 and Pentium D 955. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
Security technologies
Xeon L5618 and Pentium D 955 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5618 and Pentium D 955 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5618 and Pentium D 955. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
Peripherals
Specifications and connection of peripherals supported by Xeon L5618 and Pentium D 955.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Physical cores | 4 | 2 |
| Chip lithography | 32 nm | 65 nm |
| Power consumption (TDP) | 40 Watt | 130 Watt |
Xeon L5618 has 100% more physical cores, a 103.1% more advanced lithography process, and 225% lower power consumption.
We couldn't decide between Xeon L5618 and Pentium D 955. We've got no test results to judge.
Be aware that Xeon L5618 is a server/workstation processor while Pentium D 955 is a desktop one.
Should you still have questions on choice between Xeon L5618 and Pentium D 955, ask them in Comments section, and we shall answer.
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