i5-5575R vs Xeon E5-2666 V3

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Aggregate performance score

Xeon E5-2666 V3
2014
10 cores / 20 threads, 135 Watt
9.32
+181%

Xeon E5-2666 V3 outperforms Core i5-5575R by a whopping 181% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2666 V3 and Core i5-5575R processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking8421594
Place by popularitynot in top-100not in top-100
Market segmentServerDesktop processor
Seriesno dataIntel Core i5
Power efficiency6.304.66
Architecture codenameHaswell-EP (2014−2015)Broadwell (2015−2019)
Release date13 November 2014 (9 years ago)15 April 2015 (9 years ago)

Detailed specifications

Xeon E5-2666 V3 and Core i5-5575R 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)
Threads204
Base clock speed2.9 GHz2.8 GHz
Boost clock speed3.5 GHz3.3 GHz
Bus typeno dataDMI 2.0
Bus rateno data5 GT/s
Multiplierno data28
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)1 MB
L3 cache25 MB (shared)4 MB (shared)
Chip lithography22 nm14 nm
Die size356 mm2182 mm2
Maximum case temperature (TCase)no data72 °C
Number of transistors2,600 millionno data
64 bit support++
Windows 11 compatibilityno data-

Compatibility

Information on Xeon E5-2666 V3 and Core i5-5575R 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)
Socket2011-3FCBGA1364
Power consumption (TDP)135 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2666 V3 and Core i5-5575R. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
eDRAMno data128 MB
Turbo Boost Technologyno data2.0
TSX++
Idle Statesno data+
Thermal Monitoring-+
FDIno data+

Security technologies

Xeon E5-2666 V3 and Core i5-5575R technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+
Secure Keyno data+
Identity Protection-+
OS Guardno data+
Anti-Theftno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and Core i5-5575R are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and Core i5-5575R. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4 2133 MHz Quad-channelDDR3L-1333, DDR3L-1600, DDR3L-1866
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data29.86 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel Iris Pro Graphics 6200
Max video memoryno data32 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.05 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Xeon E5-2666 V3 and Core i5-5575R integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E5-2666 V3 and Core i5-5575R integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data3840x2160@60Hz
Max resolution over DisplayPortno data3840x2160@60Hz
Max resolution over VGAno data1920x1200@60Hz

Graphics API support

APIs supported by Xeon E5-2666 V3 and Core i5-5575R integrated GPUs, sometimes API versions are included.

DirectXno data11.2
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2666 V3 and Core i5-5575R.

PCIe version3.03.0
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 E5-2666 V3 9.32
+181%
i5-5575R 3.32

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 14269
+181%
i5-5575R 5078

Gaming performance

Pros & cons summary


Performance score 9.32 3.32
Recency 13 November 2014 15 April 2015
Physical cores 10 4
Threads 20 4
Chip lithography 22 nm 14 nm
Power consumption (TDP) 135 Watt 65 Watt

Xeon E5-2666 V3 has a 180.7% higher aggregate performance score, and 150% more physical cores and 400% more threads.

i5-5575R, on the other hand, has an age advantage of 5 months, a 57.1% more advanced lithography process, and 107.7% lower power consumption.

The Xeon E5-2666 V3 is our recommended choice as it beats the Core i5-5575R in performance tests.

Be aware that Xeon E5-2666 V3 is a server/workstation processor while Core i5-5575R is a desktop one.


Should you still have questions on choice between Xeon E5-2666 V3 and Core i5-5575R, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2666 V3
Xeon E5-2666 V3
Intel Core i5-5575R
Core i5-5575R

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Community ratings

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