Xeon E3-1226 v3 vs E5-2643

Aggregate performance score

Xeon E5-2643
2012
4 cores / 8 threads, 130 Watt
3.36
Xeon E3-1226 v3
2014
4 cores / 4 threads, 84 Watt
3.49
+3.9%

Xeon E3-1226 v3 outperforms Xeon E5-2643 by a minimal 4% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5-2643 and Xeon E3-1226 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking15631529
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.912.12
Market segmentServerServer
Seriesno dataXeon (Desktop)
Power efficiency2.453.93
Architecture codenameSandy Bridge-EP (2012)Haswell-WS (2013−2014)
Release date6 March 2012 (12 years ago)11 May 2014 (10 years ago)
Launch price (MSRP)$218$213

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1226 v3 has 11% better value for money than Xeon E5-2643.

Detailed specifications

Xeon E5-2643 and Xeon E3-1226 v3 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 cores4 (Quad-Core)4 (Quad-Core)
Threads84
Base clock speed3.3 GHz3.3 GHz
Boost clock speed3.5 GHz3.7 GHz
Bus rate8 GT/s5 GT/s
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)256K (per core)
L3 cache10240 KB (shared)8 MB (shared)
Chip lithography32 nm22 nm
Die size294 mm2160 mm2
Maximum core temperature73 °Cno data
Number of transistors1,270 million1,400 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5-2643 and Xeon E3-1226 v3 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
SocketFCLGA2011FCLGA1150
Power consumption (TDP)130 Watt84 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2643 and Xeon E3-1226 v3. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.02.0
Hyper-Threading Technology+-
TSX-+
Idle States++
Thermal Monitoring++
Flex Memory Access-+
SIPP-+
Demand Based Switching+no data
FDIno data+
Fast Memory Accessno data+

Security technologies

Xeon E5-2643 and Xeon E3-1226 v3 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2643 and Xeon E3-1226 v3 are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2643 and Xeon E3-1226 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size384 GB32 GB
Max memory channels42
Maximum memory bandwidth51.2 GB/s25.6 GB/s
ECC memory support++

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD P4600
Max video memoryno data1.7 GB
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.2 GHz
Execution Unitsno data20
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Xeon E5-2643 and Xeon E3-1226 v3 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E5-2643 and Xeon E3-1226 v3 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data3840x2160@60Hz
Max resolution over DisplayPortno data3840x2160@60Hz
Max resolution over VGAno data2880x1800@60Hz

Graphics API support

APIs supported by Xeon E5-2643 and Xeon E3-1226 v3 integrated GPUs, sometimes API versions are included.

DirectXno data11.2
OpenGLno data4.3

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2643 and Xeon E3-1226 v3.

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 E5-2643 3.36
Xeon E3-1226 v3 3.49
+3.9%

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 E5-2643 5339
Xeon E3-1226 v3 5543
+3.8%

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 E5-2643 564
Xeon E3-1226 v3 1155
+105%

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 E5-2643 2089
Xeon E3-1226 v3 3306
+58.3%

Gaming performance

Pros & cons summary


Performance score 3.36 3.49
Recency 6 March 2012 11 May 2014
Threads 8 4
Chip lithography 32 nm 22 nm
Power consumption (TDP) 130 Watt 84 Watt

Xeon E5-2643 has 100% more threads.

Xeon E3-1226 v3, on the other hand, has a 3.9% higher aggregate performance score, an age advantage of 2 years, a 45.5% more advanced lithography process, and 54.8% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Xeon E5-2643 and Xeon E3-1226 v3.


Should you still have questions on choice between Xeon E5-2643 and Xeon E3-1226 v3, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2643
Xeon E5-2643
Intel Xeon E3-1226 v3
Xeon E3-1226 v3

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Community ratings

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Questions & comments

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