Xeon E5-4640 vs E5-4657L v2

VS

Aggregate performance score

Xeon E5-4657L v2
2014
12 cores / 24 threads, 115 Watt
7.31
+65.8%
Xeon E5-4640
2012
8 cores / 16 threads, 95 Watt
4.41

Xeon E5-4657L v2 outperforms Xeon E5-4640 by an impressive 66% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-4657L v2 and Xeon E5-4640 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking9891342
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.29
Market segmentServerServer
Power efficiency6.024.39
Architecture codenameno dataSandy Bridge-EP (2012)
Release date1 January 2014 (10 years ago)14 May 2012 (12 years ago)
Launch price (MSRP)no data$2,730

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5-4657L v2 and Xeon E5-4640 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 GHz2.4 GHz
Boost clock speed2.9 GHz2.8 GHz
Bus rate8 GT/s8 GT/s
L1 cacheno data64 KB (per core)
L2 cacheno data256 KB (per core)
L3 cache30 MB Intel® Smart Cache20480 KB (shared)
Chip lithography22 nm32 nm
Die sizeno data435 mm2
Maximum core temperature81 °Cno data
Number of transistorsno data2,270 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-4657L v2 and Xeon E5-4640 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
SocketFCLGA2011FCLGA2011
Power consumption (TDP)115 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4657L v2 and Xeon E5-4640. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® AVX
AES-NI++
AVX-+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Accessno data+
Demand Based Switching++
PAE46 Bitno data

Security technologies

Xeon E5-4657L v2 and Xeon E5-4640 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 E5-4640 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 E5-4640. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866DDR3
Maximum memory size768 GB384 GB
Max memory channels44
Maximum memory bandwidth59.7 GB/s51.2 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4657L v2 and Xeon E5-4640.

PCIe version3.03.0
PCI Express lanes4040

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 E5-4657L v2 7.31
+65.8%
Xeon E5-4640 4.41

  • Passmark

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 E5-4657L v2 11613
+65.6%
Xeon E5-4640 7012

Gaming performance

Pros & cons summary


Performance score 7.31 4.41
Recency 1 January 2014 14 May 2012
Physical cores 12 8
Threads 24 16
Chip lithography 22 nm 32 nm
Power consumption (TDP) 115 Watt 95 Watt

Xeon E5-4657L v2 has a 65.8% higher aggregate performance score, an age advantage of 1 year, 50% more physical cores and 50% more threads, and a 45.5% more advanced lithography process.

Xeon E5-4640, on the other hand, has 21.1% lower power consumption.

The Xeon E5-4657L v2 is our recommended choice as it beats the Xeon E5-4640 in performance tests.


Should you still have questions on choice between Xeon E5-4657L v2 and Xeon E5-4640, ask them in Comments section, and we shall answer.

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Intel Xeon E5-4657L v2
Xeon E5-4657L v2
Intel Xeon E5-4640
Xeon E5-4640

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Community ratings

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Questions & comments

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