Xeon E3-1260L vs E5-2666 V3

VS

Aggregate performance score

Xeon E5-2666 V3
2014
10 cores / 20 threads, 135 Watt
8.92
+248%
Xeon E3-1260L
2011
4 cores / 8 threads, 45 Watt
2.56

Xeon E5-2666 V3 outperforms Xeon E3-1260L by a whopping 248% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2666 V3 and Xeon E3-1260L processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking8661745
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data1.73
Market segmentServerServer
Power efficiency6.255.38
Architecture codenameHaswell-EP (2014−2015)Sandy Bridge (2011−2013)
Release date13 November 2014 (10 years ago)3 April 2011 (13 years ago)
Launch price (MSRP)no data$150

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5-2666 V3 and Xeon E3-1260L 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 cores10 (Deca-Core)4 (Quad-Core)
Threads208
Base clock speed2.9 GHz2.4 GHz
Boost clock speed3.5 GHz3.3 GHz
L1 cache64K (per core)64 KB (per core)
L2 cache256K (per core)256 KB (per core)
L3 cache25 MB (shared)8 MB (shared)
Chip lithography22 nm32 nm
Die size356 mm2216 mm2
Maximum core temperatureno data59 °C
Number of transistors2,600 million1,160 million
64 bit support++
Windows 11 compatibilityno data-

Compatibility

Information on Xeon E5-2666 V3 and Xeon E3-1260L 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
Socket2011-3LGA1155
Power consumption (TDP)135 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2666 V3 and Xeon E3-1260L. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX+-
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
Demand Based Switchingno data+
FDIno data+
Fast Memory Accessno data+

Security technologies

Xeon E5-2666 V3 and Xeon E3-1260L technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+
Identity Protection-+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and Xeon E3-1260L are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and Xeon E3-1260L. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4 2133 MHz Quad-channelDDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data21 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics 2000
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.25 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Xeon E5-2666 V3 and Xeon E3-1260L integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2666 V3 and Xeon E3-1260L.

PCIe version3.02.0
PCI Express lanes4020

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 E5-2666 V3 8.92
+248%
Xeon E3-1260L 2.56

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 E5-2666 V3 14167
+248%
Xeon E3-1260L 4073

Gaming performance

Pros & cons summary


Performance score 8.92 2.56
Recency 13 November 2014 3 April 2011
Physical cores 10 4
Threads 20 8
Chip lithography 22 nm 32 nm
Power consumption (TDP) 135 Watt 45 Watt

Xeon E5-2666 V3 has a 248.4% higher aggregate performance score, an age advantage of 3 years, 150% more physical cores and 150% more threads, and a 45.5% more advanced lithography process.

Xeon E3-1260L, on the other hand, has 200% lower power consumption.

The Xeon E5-2666 V3 is our recommended choice as it beats the Xeon E3-1260L in performance tests.


Should you still have questions on choice between Xeon E5-2666 V3 and Xeon E3-1260L, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2666 V3
Xeon E5-2666 V3
Intel Xeon E3-1260L
Xeon E3-1260L

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Community ratings

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