Pentium 3556U vs Xeon E5440

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Xeon E5405 Xeon E5410 Xeon E5420 Xeon E5430 Xeon E5440 Xeon E5450 Xeon E5462 Xeon E5472 Xeon E5520 Xeon E5606 Xeon E5620 Xeon E5645
VS
Core i3-4000M Core i3-4005U Core i3-4010U Core i3-4030U Core i5-4200M Core i5-4200U Core i5-4210M Core i5-4210U Core i5-4300U Core i7-4510U Core i7-4700MQ Core i7-4720HQ

Aggregate performance score

Xeon E5440
2008
80 Watt
1.49
+122%
Pentium 3556U
2013
2 cores / 2 threads, 15 Watt
0.67

Xeon E5440 outperforms Pentium 3556U by a whopping 122% based on our aggregate benchmark results.

Contents

Xeon E5440 Xeon E5440
Pentium 3556U Pentium 3556U

Primary details

Comparing Xeon E5440 and Pentium 3556U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking21442733
Place by popularitynot in top-100not in top-100
Market segmentServerLaptop
Seriesno dataIntel Pentium
Power efficiency1.764.23
Architecture codenameno dataHaswell (2013−2015)
Release date1 January 2008 (16 years ago)1 September 2013 (11 years ago)

Detailed specifications

Xeon E5440 and Pentium 3556U 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 coresno data2 (Dual-core)
Threadsno data2
Base clock speed2.83 GHz1.7 GHz
Boost clock speedno data1.7 GHz
Bus rateno data5 GT/s
L1 cacheno data64K (per core)
L2 cacheno data256K (per core)
L3 cache12 MB L2 Cache2 MB (shared)
Chip lithography45 nm22 nm
Die sizeno data118 mm2
Maximum core temperature67 °C100 °C
Maximum case temperature (TCase)no data105 °C
Number of transistorsno data1,400 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.35Vno data

Compatibility

Information on Xeon E5440 and Pentium 3556U 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 configurationno data1
SocketLGA771FCBGA1168
Power consumption (TDP)80 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5440 and Pentium 3556U. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Smart Responseno data-
Demand Based Switching+no data
GPIOno data+
Smart Connectno data+
FDIno data-
AMTno data9.5
Matrix Storageno data-
FSB parity+no data
HD Audiono data+
RSTno data+

Security technologies

Xeon E5440 and Pentium 3556U technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++
Secure Keyno data+
OS Guardno data-
Anti-Theftno data-

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5440 and Pentium 3556U are enumerated here.

AMD-V-+
VT-dno data-
VT-x++
EPT-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5440 and Pentium 3556U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3
Maximum memory sizeno data16 GB
Max memory channelsno data2
Maximum memory bandwidthno data25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel® HD Graphics for 4th Generation Intel® Processors
Clear Videono data+
Graphics max frequencyno data1 GHz

Graphics interfaces

Available interfaces and connections of Xeon E5440 and Pentium 3556U integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+

Peripherals

Specifications and connection of peripherals supported by Xeon E5440 and Pentium 3556U.

PCIe versionno data2.0
PCI Express lanesno data10
PCI supportno data-
USB revisionno data3.0
Total number of SATA portsno data2
Max number of SATA 6 Gb/s Portsno data2
Integrated IDEno data-
Number of USB portsno data4
Integrated LANno data-
UARTno data+

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 E5440 1.49
+122%
Pentium 3556U 0.67

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 E5440 2374
+124%
Pentium 3556U 1061

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.

Xeon E5440 367
+21.5%
Pentium 3556U 302

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.

Xeon E5440 1029
+109%
Pentium 3556U 493

Gaming performance

Pros & cons summary

Performance score 1.49 0.67
Recency 1 January 2008 1 September 2013
Chip lithography 45 nm 22 nm
Power consumption (TDP) 80 Watt 15 Watt

Xeon E5440 has a 122.4% higher aggregate performance score.

Pentium 3556U, on the other hand, has an age advantage of 5 years, a 104.5% more advanced lithography process, and 433.3% lower power consumption.

The Xeon E5440 is our recommended choice as it beats the Pentium 3556U in performance tests.

Be aware that Xeon E5440 is a server/workstation processor while Pentium 3556U is a notebook one.

Should you still have questions on choice between Xeon E5440 and Pentium 3556U, ask them in Comments section, and we shall answer.

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.

4 485 votes

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2.5 142 votes

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Questions & comments

Here you can ask a question about Xeon E5440 or Pentium 3556U, agree or disagree with our judgements, or report an error or mismatch.