Intel Xeon E5-2660 v3 vs Intel Xeon E3-1271 v3

Comparative analysis of Intel Xeon E5-2660 v3 and Intel Xeon E3-1271 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.

Intel Xeon E5-2660 v3

Intel Xeon E3-1271 v3

Differences

Reasons to consider the Intel Xeon E5-2660 v3

6 more cores, run more applications at once: 10 vs 4
12 more threads: 20 vs 8
24x more maximum memory size: 768 GB vs 32 GB
2.9x better performance in PassMark - CPU mark: 21923 vs 7513
Around 66% better performance in Geekbench 4 - Multi-Core: 5962 vs 3597

Specifications (specs)
Number of cores	10 vs 4
Number of threads	20 vs 8
Maximum memory size	768 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	21923 vs 7513
Geekbench 4 - Multi-Core	5962 vs 3597

Reasons to consider the Intel Xeon E3-1271 v3

Around 21% higher clock speed: 4.00 GHz vs 3.30 GHz
Around 31% lower typical power consumption: 80 Watt vs 105 Watt
Around 26% better performance in PassMark - Single thread mark: 2277 vs 1802
Around 28% better performance in Geekbench 4 - Single Core: 965 vs 754

Specifications (specs)
Maximum frequency	4.00 GHz vs 3.30 GHz
Thermal Design Power (TDP)	80 Watt vs 105 Watt
Benchmarks
PassMark - Single thread mark	2277 vs 1802
Geekbench 4 - Single Core	965 vs 754

Compare benchmarks

CPU 1: Intel Xeon E5-2660 v3
CPU 2: Intel Xeon E3-1271 v3

PassMark - Single thread mark

CPU 1

CPU 2

1802

2277

PassMark - CPU mark

CPU 1

CPU 2

21923

7513

Geekbench 4 - Single Core

CPU 1

CPU 2

754

965

Geekbench 4 - Multi-Core

CPU 1

CPU 2

5962

3597

Name	Intel Xeon E5-2660 v3	Intel Xeon E3-1271 v3
PassMark - Single thread mark	1802	2277
PassMark - CPU mark	21923	7513
Geekbench 4 - Single Core	754	965
Geekbench 4 - Multi-Core	5962	3597

Compare specifications (specs)

	Intel Xeon E5-2660 v3	Intel Xeon E3-1271 v3
Essentials
Architecture codename	Haswell	Haswell
Launch date	Q3'14	Q2'14
Place in performance rating	1412	1418
Processor Number	E5-2660V3	E3-1271V3
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	2.60 GHz	3.60 GHz
Bus Speed	9.6 GT/s QPI	5 GT/s DMI2
Manufacturing process technology	22 nm	22 nm
Maximum core temperature	79°C
Maximum frequency	3.30 GHz	4.00 GHz
Number of cores	10	4
Number of QPI Links	2	0
Number of threads	20	8
VID voltage range	0.65V–1.30V
Memory
Max memory channels	4	2
Maximum memory bandwidth	68 GB/s	25.6 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR4 1600/1866/2133	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)	105 Watt	80 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)