Pentium U5400 vs Xeon E5-2665
Primary details
Comparing Xeon E5-2665 and Pentium U5400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1180 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 7.69 | no data |
| Market segment | Server | Laptop |
| Series | no data | Intel Pentium |
| Power efficiency | 4.31 | no data |
| Architecture codename | Sandy Bridge-EP (2012) | Arrandale (2010−2011) |
| Release date | 6 March 2012 (12 years ago) | 25 May 2010 (14 years ago) |
| Launch price (MSRP) | $142 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5-2665 and Pentium U5400 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 | 8 (Octa-Core) | 2 (Dual-core) |
| Threads | 16 | 2 |
| Base clock speed | 2.4 GHz | 1.2 GHz |
| Boost clock speed | 3.1 GHz | 0.1 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | 8 GT/s | 1 × 2.5 GT/s |
| Multiplier | no data | 9 |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 256 KB (per core) | 512 KB |
| L3 cache | 20480 KB (shared) | 3 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 435 mm2 | 81+114 mm2 |
| Maximum core temperature | 82 °C | 105 °C |
| Number of transistors | 2,270 million | 382 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon E5-2665 and Pentium U5400 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 (Uniprocessor) |
| Socket | FCLGA2011 | BGA1288 |
| Power consumption (TDP) | 115 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2665 and Pentium U5400. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX | no data |
| AES-NI | + | - |
| FMA | - | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | - | + |
| Demand Based Switching | + | no data |
| PAE | no data | 36 Bit |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Xeon E5-2665 and Pentium U5400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2665 and Pentium U5400 are enumerated here.
| VT-d | + | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2665 and Pentium U5400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 384 GB | 8 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 51.2 GB/s | 12.799 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video | no data | + |
| Graphics max frequency | no data | 500 MHz |
Graphics interfaces
Available interfaces and connections of Xeon E5-2665 and Pentium U5400 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2665 and Pentium U5400.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 40 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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
| Recency | 6 March 2012 | 25 May 2010 |
| Physical cores | 8 | 2 |
| Threads | 16 | 2 |
| Power consumption (TDP) | 115 Watt | 18 Watt |
Xeon E5-2665 has an age advantage of 1 year, and 300% more physical cores and 700% more threads.
Pentium U5400, on the other hand, has 538.9% lower power consumption.
We couldn't decide between Xeon E5-2665 and Pentium U5400. We've got no test results to judge.
Be aware that Xeon E5-2665 is a server/workstation processor while Pentium U5400 is a notebook one.
Should you still have questions on choice between Xeon E5-2665 and Pentium U5400, ask them in Comments section, and we shall answer.
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