Pentium U5400 vs Xeon E5-2665

VS

Aggregate performance score

Xeon E5-2665
2012
8 cores / 16 threads, 115 Watt
5.23
+1394%
Pentium U5400
2010
2 cores / 2 threads, 18 Watt
0.35

Xeon E5-2665 outperforms Pentium U5400 by a whopping 1394% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2665 and Pentium U5400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking11843048
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation7.96no data
Market segmentServerLaptop
Seriesno dataIntel Pentium
Power efficiency4.301.84
Architecture codenameSandy Bridge-EP (2012)Arrandale (2010−2011)
Release date6 March 2012 (12 years ago)25 May 2010 (14 years ago)
Launch price (MSRP)$142no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

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 cores8 (Octa-Core)2 (Dual-core)
Threads162
Base clock speed2.4 GHz1.2 GHz
Boost clock speed3.1 GHz1.2 GHz
Bus typeno dataDMI 1.0
Bus rate8 GT/s1 × 2.5 GT/s
Multiplierno data9
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)256K (per core)
L3 cache20480 KB (shared)3 MB (shared)
Chip lithography32 nm32 nm
Die size435 mm281+114 mm2
Maximum core temperature82 °C105 °C
Number of transistors2,270 million384 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 configuration21 (Uniprocessor)
SocketFCLGA2011BGA1288
Power consumption (TDP)115 Watt18 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 extensionsIntel® AVXno data
AES-NI+-
FMA-+
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0-
Hyper-Threading Technology+-
Idle States++
Thermal Monitoring++
Flex Memory Access-+
Demand Based Switching+no data
PAEno data36 Bit
FDIno data+
Fast Memory Accessno 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 typesDDR3DDR3
Maximum memory size384 GB8 GB
Max memory channels42
Maximum memory bandwidth51.2 GB/s12.799 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics for Previous Generation Intel Processors
Clear Videono data+
Graphics max frequencyno data500 MHz

Graphics interfaces

Available interfaces and connections of Xeon E5-2665 and Pentium U5400 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2665 and Pentium U5400.

PCIe version3.02.0
PCI Express lanes4016

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.

Xeon E5-2665 5.23
+1394%
Pentium U5400 0.35

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.

Xeon E5-2665 8315
+1406%
Pentium U5400 552

Gaming performance

Pros & cons summary


Performance score 5.23 0.35
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 a 1394.3% higher aggregate performance score, 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.

The Xeon E5-2665 is our recommended choice as it beats the Pentium U5400 in performance tests.

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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Intel Xeon E5-2665
Xeon E5-2665
Intel Pentium U5400
Pentium U5400

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Community ratings

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Questions & comments

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