Ultra 7 265 vs Xeon L5638
Primary details
Comparing Xeon L5638 and Core Ultra 7 265 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1790 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.73 | no data |
| Market segment | Server | Desktop processor |
| Power efficiency | 3.68 | no data |
| Architecture codename | Westmere-EP (2010−2011) | Arrow Lake-S (2024−2025) |
| Release date | 16 March 2010 (14 years ago) | January 2025 |
| Launch price (MSRP) | $90 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon L5638 and Core Ultra 7 265 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 | 6 (Hexa-Core) | 20 (Icosa-Core) |
| Threads | 12 | 20 |
| Base clock speed | 2 GHz | 2.4 GHz |
| Boost clock speed | 2.4 GHz | 5.3 GHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 256 KB (per core) | 3 MB (per core) |
| L3 cache | 12 MB (shared) | 30 MB (shared) |
| Chip lithography | 32 nm | 3 nm |
| Die size | 239 mm2 | 243 mm2 |
| Maximum core temperature | 85 °C | no data |
| Number of transistors | 1,170 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon L5638 and Core Ultra 7 265 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,LGA1366 | 1851 |
| Power consumption (TDP) | 60 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5638 and Core Ultra 7 265. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | - | + |
| Idle States | + | no data |
Security technologies
Xeon L5638 and Core Ultra 7 265 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5638 and Core Ultra 7 265 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5638 and Core Ultra 7 265. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc Xe2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Xeon L5638 and Core Ultra 7 265.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Physical cores | 6 | 20 |
| Threads | 12 | 20 |
| Chip lithography | 32 nm | 3 nm |
| Power consumption (TDP) | 60 Watt | 65 Watt |
Xeon L5638 has 8.3% lower power consumption.
Ultra 7 265, on the other hand, has 233.3% more physical cores and 66.7% more threads, and a 966.7% more advanced lithography process.
We couldn't decide between Xeon L5638 and Core Ultra 7 265. We've got no test results to judge.
Be aware that Xeon L5638 is a server/workstation processor while Core Ultra 7 265 is a desktop one.
Should you still have questions on choice between Xeon L5638 and Core Ultra 7 265, ask them in Comments section, and we shall answer.
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