Ultra 7 155U vs Xeon L5520
Aggregate performance score
Core Ultra 7 155U outperforms Xeon L5520 by a whopping 637% based on our aggregate benchmark results.
Primary details
Comparing Xeon L5520 and Core Ultra 7 155U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2197 | 743 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.75 | no data |
| Market segment | Server | Laptop |
| Series | no data | Intel Meteor Lake-U |
| Power efficiency | 2.26 | 66.50 |
| Architecture codename | Gainestown (2009−2010) | Meteor Lake-P (2023) |
| Release date | 30 March 2009 (15 years ago) | 14 December 2023 (1 year ago) |
| Launch price (MSRP) | $100 | $490 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon L5520 and Core Ultra 7 155U 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) | 12 (Dodeca-Core) |
| Threads | 8 | 14 |
| Base clock speed | 2.26 GHz | 1.7 GHz |
| Boost clock speed | 2.48 GHz | 4.8 GHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 256 KB (per core) | 2 MB (per core) |
| L3 cache | 8 MB (shared) | 12 MB (shared) |
| Chip lithography | 45 nm | Intel 4 nm |
| Die size | 263 mm2 | no data |
| Maximum core temperature | 70 °C | 110 °C |
| Number of transistors | 731 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon L5520 and Core Ultra 7 155U 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 | 1 |
| Socket | FCLGA1366 | FCBGA2049 |
| Power consumption (TDP) | 60 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5520 and Core Ultra 7 155U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, ONNX RT |
Security technologies
Xeon L5520 and Core Ultra 7 155U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5520 and Core Ultra 7 155U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5520 and Core Ultra 7 155U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | 144 GB | 96 GB |
| Max memory channels | 3 | 2 |
| Maximum memory bandwidth | 25.6 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.95 GHz |
Graphics interfaces
Available interfaces and connections of Xeon L5520 and Core Ultra 7 155U integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Xeon L5520 and Core Ultra 7 155U integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Xeon L5520 and Core Ultra 7 155U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.2 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Xeon L5520 and Core Ultra 7 155U.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | no data | 12 |
| PCI support | no data | 4.0 |
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.
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.
Pros & cons summary
| Performance score | 1.43 | 10.54 |
| Recency | 30 March 2009 | 14 December 2023 |
| Physical cores | 4 | 12 |
| Threads | 8 | 14 |
| Power consumption (TDP) | 60 Watt | 15 Watt |
Ultra 7 155U has a 637.1% higher aggregate performance score, an age advantage of 14 years, 200% more physical cores and 75% more threads, and 300% lower power consumption.
The Core Ultra 7 155U is our recommended choice as it beats the Xeon L5520 in performance tests.
Be aware that Xeon L5520 is a server/workstation processor while Core Ultra 7 155U is a notebook one.
Should you still have questions on choice between Xeon L5520 and Core Ultra 7 155U, ask them in Comments section, and we shall answer.
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