Xeon L5520 vs Core i7-920
Aggregate performance score
Core i7-920 outperforms Xeon L5520 by a significant 24% based on our aggregate benchmark results.
Primary details
Comparing Core i7-920 and Xeon L5520 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1912 | 2077 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.22 | 4.98 |
| Market segment | Desktop processor | Server |
| Series | Core i7 (Desktop) | no data |
| Architecture codename | Bloomfield (2008−2010) | Gainestown (2009−2010) |
| Release date | November 2008 (15 years ago) | March 2009 (15 years ago) |
| Launch price (MSRP) | $340 | $100 |
| Current price | $65 (0.2x MSRP) | $37 (0.4x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon L5520 has 308% better value for money than i7-920.
Detailed specifications
Core i7-920 and Xeon L5520 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) | 4 (Quad-Core) |
| Threads | 8 | 8 |
| Base clock speed | 2.66 GHz | 2.26 GHz |
| Boost clock speed | 2.93 GHz | 2.48 GHz |
| Bus support | 1333 MHz | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 8 MB (shared) | 8 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | 263 mm2 | 263 mm2 |
| Maximum core temperature | 68 °C | 70 °C |
| Number of transistors | 731 million | 731 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-920 and Xeon L5520 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 | 1 | 2 |
| Socket | FCLGA1366,PLGA1366 | FCLGA1366 |
| Power consumption (TDP) | 130 Watt | 60 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-920 and Xeon L5520. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | - | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | 1.0 |
| Hyper-Threading Technology | + | + |
| Idle States | + | + |
| Thermal Monitoring | - | no data |
| Demand Based Switching | - | + |
| PAE | 36 Bit | 40 Bit |
| Status | Discontinued | Discontinued |
Security technologies
Core i7-920 and Xeon L5520 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-920 and Xeon L5520 are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-920 and Xeon L5520. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 24 GB | 144 GB |
| Max memory channels | 3 | 3 |
| Maximum memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory support | - | + |
Synthetic benchmark performance
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. 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.
Core i7-920 outperforms Xeon L5520 by 24% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Core i7-920 outperforms Xeon L5520 by 25% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Xeon L5520 outperforms Core i7-920 by 2% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Xeon L5520 outperforms Core i7-920 by 32% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 1.83 | 1.47 |
| Cost | $340 | $100 |
| Power consumption (TDP) | 130 Watt | 60 Watt |
The Core i7-920 is our recommended choice as it beats the Xeon L5520 in performance tests.
Note that Core i7-920 is a desktop processor while Xeon L5520 is a server/workstation one.
Should you still have questions on choice between Core i7-920 and Xeon L5520, ask them in Comments section, and we shall answer.
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