Xeon E7-4820 vs E5-4657L v2

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Primary details

Comparing Xeon E5-4657L v2 and Xeon E7-4820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking972not rated
Place by popularitynot in top-100not in top-100
Market segmentServerServer
Seriesno dataIntel Xeon E7
Power efficiency6.02no data
Architecture codenameno dataWestmere (2010−2011)
Release date1 January 2014 (10 years ago)5 April 2011 (13 years ago)
Launch price (MSRP)no data$1,446

Detailed specifications

Xeon E5-4657L v2 and Xeon E7-4820 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 cores12 (Dodeca-Core)8 (Octa-Core)
Threads2416
Base clock speed2.4 GHz2 GHz
Boost clock speed2.9 GHz2.27 GHz
Bus typeno dataQPI
Bus rate8 GT/s5.86 GT/s
Multiplierno data15
L1 cacheno data512 KB
L2 cacheno data2 MB
L3 cache30 MB Intel® Smart Cache18 MB
Chip lithography22 nm32 nm
Die sizeno data513 mm2
Maximum core temperature81 °C64 °C
Number of transistorsno data2600 Million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-4657L v2 and Xeon E7-4820 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 configuration44 (Multiprocessor)
SocketFCLGA2011LGA1567
Power consumption (TDP)115 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4657L v2 and Xeon E7-4820. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® SSE4.1, Intel® SSE4.2
AES-NI++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.01.0
Hyper-Threading Technology++
Idle States+no data
Thermal Monitoring++
Demand Based Switching+no data
PAE46 Bitno data

Security technologies

Xeon E5-4657L v2 and Xeon E7-4820 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 E5-4657L v2 and Xeon E7-4820 are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-4657L v2 and Xeon E7-4820. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066
Maximum memory size768 GB2 TB
Max memory channels44
Maximum memory bandwidth59.7 GB/s34.113 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4657L v2 and Xeon E7-4820.

PCIe version3.0no data
PCI Express lanes40no data

Pros & cons summary


Recency 1 January 2014 5 April 2011
Physical cores 12 8
Threads 24 16
Chip lithography 22 nm 32 nm
Power consumption (TDP) 115 Watt 105 Watt

Xeon E5-4657L v2 has an age advantage of 2 years, 50% more physical cores and 50% more threads, and a 45.5% more advanced lithography process.

Xeon E7-4820, on the other hand, has 9.5% lower power consumption.

We couldn't decide between Xeon E5-4657L v2 and Xeon E7-4820. We've got no test results to judge.


Should you still have questions on choice between Xeon E5-4657L v2 and Xeon E7-4820, ask them in Comments section, and we shall answer.

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Intel Xeon E5-4657L v2
Xeon E5-4657L v2
Intel Xeon E7-4820
Xeon E7-4820

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