Xeon E5649 vs L5618
Primary details
Comparing Xeon L5618 and Xeon E5649 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1522 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.56 |
| Market segment | Server | Server |
| Power efficiency | no data | 4.24 |
| Architecture codename | Westmere-EP (2010−2011) | Westmere-EP (2010−2011) |
| Release date | 16 March 2010 (14 years ago) | 14 February 2011 (13 years ago) |
| Launch price (MSRP) | no data | $45 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon L5618 and Xeon E5649 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) | 6 (Hexa-Core) |
| Threads | 8 | 12 |
| Base clock speed | 1.87 GHz | 2.53 GHz |
| Boost clock speed | 2.26 GHz | 2.93 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 12 MB (shared) | 12288 KB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 239 mm2 | 239 mm2 |
| Maximum core temperature | 87 °C | 76 °C |
| Number of transistors | 1,170 million | 1,170 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon L5618 and Xeon E5649 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 | FCLGA1366 |
| Power consumption (TDP) | 40 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5618 and Xeon E5649. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2 |
| AES-NI | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | 1.0 |
| Hyper-Threading Technology | + | + |
| Idle States | + | + |
| Demand Based Switching | no data | + |
| PAE | no data | 40 Bit |
Security technologies
Xeon L5618 and Xeon E5649 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 L5618 and Xeon E5649 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5618 and Xeon E5649. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | no data | 288 GB |
| Max memory channels | no data | 3 |
| Maximum memory bandwidth | no data | 32 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Xeon L5618 and Xeon E5649.
| PCIe version | 2.0 | 2.0 |
Pros & cons summary
| Recency | 16 March 2010 | 14 February 2011 |
| Physical cores | 4 | 6 |
| Threads | 8 | 12 |
| Power consumption (TDP) | 40 Watt | 80 Watt |
Xeon L5618 has 100% lower power consumption.
Xeon E5649, on the other hand, has an age advantage of 10 months, and 50% more physical cores and 50% more threads.
We couldn't decide between Xeon L5618 and Xeon E5649. We've got no test results to judge.
Should you still have questions on choice between Xeon L5618 and Xeon E5649, ask them in Comments section, and we shall answer.
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