Intel Xeon E3-1275L v3 vs Intel Xeon E5-1660 v2

Comparative analysis of Intel Xeon E3-1275L v3 and Intel Xeon E5-1660 v2 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, 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).

Intel Xeon E3-1275L v3

Intel Xeon E5-1660 v2

Differences

Reasons to consider the Intel Xeon E3-1275L v3

2.9x lower typical power consumption: 45 Watt vs 130 Watt
Around 3% better performance in PassMark - Single thread mark: 2172 vs 2102
Around 11% better performance in Geekbench 4 - Single Core: 905 vs 816

Specifications (specs)
Thermal Design Power (TDP)	45 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	2172 vs 2102
Geekbench 4 - Single Core	905 vs 816

Reasons to consider the Intel Xeon E5-1660 v2

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 3% higher clock speed: 4.00 GHz vs 3.90 GHz
8x more maximum memory size: 256 GB vs 32 GB
Around 64% better performance in PassMark - CPU mark: 10278 vs 6261
Around 74% better performance in Geekbench 4 - Multi-Core: 4969 vs 2853

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Maximum frequency	4.00 GHz vs 3.90 GHz
Maximum memory size	256 GB vs 32 GB
Benchmarks
PassMark - CPU mark	10278 vs 6261
Geekbench 4 - Multi-Core	4969 vs 2853

Compare benchmarks

CPU 1: Intel Xeon E3-1275L v3
CPU 2: Intel Xeon E5-1660 v2

PassMark - Single thread mark

CPU 1

CPU 2

2172

2102

PassMark - CPU mark

CPU 1

CPU 2

6261

10278

Geekbench 4 - Single Core

CPU 1

CPU 2

905

816

Geekbench 4 - Multi-Core

CPU 1

CPU 2

2853

4969

Name	Intel Xeon E3-1275L v3	Intel Xeon E5-1660 v2
PassMark - Single thread mark	2172	2102
PassMark - CPU mark	6261	10278
Geekbench 4 - Single Core	905	816
Geekbench 4 - Multi-Core	2853	4969
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		12.593

Compare specifications (specs)

	Intel Xeon E3-1275L v3	Intel Xeon E5-1660 v2
Essentials
Architecture codename	Haswell	Ivy Bridge EP
Launch date	Q2'14	September 2013
Place in performance rating	1436	1448
Processor Number	E3-1275LV3	E5-1660V2
Series	Intel® Xeon® Processor E3 v3 Family	Intel® Xeon® Processor E5 v2 Family
Status	Discontinued	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$1,809
Price now		$1,808.95
Value for money (0-100)		2.23
Performance
64 bit support
Base frequency	2.70 GHz	3.70 GHz
Bus Speed	5 GT/s DMI	0 GT/s QPI
Manufacturing process technology	22 nm	22 nm
Maximum frequency	3.90 GHz	4.00 GHz
Number of cores	4	6
Number of QPI Links	0	0
Number of threads	8	12
Die size		160 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		15360 KB (shared)
Maximum core temperature		70°C
Transistor count		1400 million
VID voltage range		0.65–1.30V
Memory
Max memory channels	2	4
Maximum memory bandwidth	25.6 GB/s	59.7 GB/s
Maximum memory size	32 GB	256 GB
Supported memory types	DDR3 1333/1600	DDR3 800/1066/1333/1600/1866
ECC memory support
Graphics
Execution Units	10
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	1.7 GB
Processor graphics	Intel HD Graphics
Graphics interfaces
DisplayPort
eDP
HDMI
Number of displays supported	3
VGA
Graphics image quality
Max resolution over DisplayPort	3840x2160@60Hz
Max resolution over HDMI 1.4	3840x2160@60Hz
Max resolution over VGA	2880x1800@60Hz
Graphics API support
DirectX	11.2
OpenGL	4.3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	52.5mm x 45.0 mm
Sockets supported	FCLGA1150	FCLGA2011
Thermal Design Power (TDP)	45 Watt	130 Watt
Thermal Solution	PCG 2013B
Peripherals
Max number of PCIe lanes	16	40
PCI Express revision	3.0	3.0
PCIe configurations	1x16, 2x8, 1x8/2x4	x4, x8, x16
Scalability	1S Only	1S Only
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Physical Address Extensions (PAE)		46-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)