Intel Xeon E5-2620 v3 vs Intel Xeon E3-1281 v3

Comparative analysis of Intel Xeon E5-2620 v3 and Intel Xeon E3-1281 v3 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Xeon E5-2620 v3

Intel Xeon E3-1281 v3

Differences

Reasons to consider the Intel Xeon E5-2620 v3

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
24x more maximum memory size: 768 GB vs 32 GB
Around 78% better performance in PassMark - CPU mark: 13308 vs 7463
Around 10% better performance in Geekbench 4 - Multi-Core: 3958 vs 3597

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum memory size	768 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	13308 vs 7463
Geekbench 4 - Multi-Core	3958 vs 3597

Reasons to consider the Intel Xeon E3-1281 v3

Around 28% higher clock speed: 4.10 GHz vs 3.20 GHz
Around 4% lower typical power consumption: 82 Watt vs 85 Watt
Around 37% better performance in PassMark - Single thread mark: 2331 vs 1700
Around 44% better performance in Geekbench 4 - Single Core: 1005 vs 697

Specifications (specs)
Maximum frequency	4.10 GHz vs 3.20 GHz
Thermal Design Power (TDP)	82 Watt vs 85 Watt
Benchmarks
PassMark - Single thread mark	2331 vs 1700
Geekbench 4 - Single Core	1005 vs 697

Compare benchmarks

CPU 1: Intel Xeon E5-2620 v3
CPU 2: Intel Xeon E3-1281 v3

PassMark - Single thread mark

CPU 1

CPU 2

1700

2331

PassMark - CPU mark

CPU 1

CPU 2

13308

7463

Geekbench 4 - Single Core

CPU 1

CPU 2

697

1005

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3958

3597

Name	Intel Xeon E5-2620 v3	Intel Xeon E3-1281 v3
PassMark - Single thread mark	1700	2331
PassMark - CPU mark	13308	7463
Geekbench 4 - Single Core	697	1005
Geekbench 4 - Multi-Core	3958	3597
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	16.123
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	194.017
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.526
CompuBench 1.5 Desktop - Video Composition (Frames/s)	7.846
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	47.998

Compare specifications (specs)

	Intel Xeon E5-2620 v3	Intel Xeon E3-1281 v3
Essentials
Architecture codename	Haswell	Haswell
Launch date	Q3'14	Q2'14
Place in performance rating	1404	1386
Processor Number	E5-2620V3	E3-1281V3
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® Processor E3 v3 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.40 GHz	3.70 GHz
Bus Speed	8 GT/s QPI	5 GT/s DMI2
Manufacturing process technology	22 nm	22 nm
Maximum core temperature	72.6°C
Maximum frequency	3.20 GHz	4.10 GHz
Number of cores	6	4
Number of QPI Links	2	0
Number of threads	12	8
VID voltage range	0.65V–1.30V
Memory
Max memory channels	4	2
Maximum memory bandwidth	59 GB/s	25.6 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR4 1600/1866	DDR3 and DDR3L 1333/1600 at 1.5V
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	52.5mm x 45mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011-3	FCLGA1150
Thermal Design Power (TDP)	85 Watt	82 Watt
Thermal Solution		PCG 2013D
Peripherals
Max number of PCIe lanes	40	16
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16	1x16, 2x8, 1x8/2x4
Scalability	2S	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Anti-Theft technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Intel® Fast Memory Access
Intel® Stable Image Platform Program (SIPP)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)