Intel Xeon E3-1281 v3 vs Intel Xeon E3-1276 v3

Comparative analysis of Intel Xeon E3-1281 v3 and Intel Xeon E3-1276 v3 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces, Graphics image quality, Graphics API support. 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 E3-1281 v3

Intel Xeon E3-1276 v3

Differences

Reasons to consider the Intel Xeon E3-1281 v3

Around 2% higher clock speed: 4.10 GHz vs 4.00 GHz
Around 2% lower typical power consumption: 82 Watt vs 84 Watt
Around 2% better performance in PassMark - Single thread mark: 2334 vs 2288

Specifications (specs)
Maximum frequency	4.10 GHz vs 4.00 GHz
Thermal Design Power (TDP)	82 Watt vs 84 Watt
Benchmarks
PassMark - Single thread mark	2334 vs 2288

Reasons to consider the Intel Xeon E3-1276 v3

4.3x better performance in Geekbench 4 - Single Core: 4368 vs 1005
3.9x better performance in Geekbench 4 - Multi-Core: 13953 vs 3597

Benchmarks
PassMark - CPU mark	7543 vs 7528
Geekbench 4 - Single Core	4368 vs 1005
Geekbench 4 - Multi-Core	13953 vs 3597

Compare benchmarks

CPU 1: Intel Xeon E3-1281 v3
CPU 2: Intel Xeon E3-1276 v3

PassMark - Single thread mark

CPU 1

CPU 2

2334

2288

PassMark - CPU mark

CPU 1

CPU 2

7528

7543

Geekbench 4 - Single Core

CPU 1

CPU 2

1005

4368

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3597

13953

Name	Intel Xeon E3-1281 v3	Intel Xeon E3-1276 v3
PassMark - Single thread mark	2334	2288
PassMark - CPU mark	7528	7543
Geekbench 4 - Single Core	1005	4368
Geekbench 4 - Multi-Core	3597	13953
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		16.022
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		17.222
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.603
CompuBench 1.5 Desktop - Video Composition (Frames/s)		3.999
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.686

Compare specifications (specs)

	Intel Xeon E3-1281 v3	Intel Xeon E3-1276 v3
Essentials
Architecture codename	Haswell	Haswell
Launch date	Q2'14	Q2'14
Place in performance rating	1392	1179
Processor Number	E3-1281V3	E3-1276V3
Series	Intel® Xeon® Processor E3 v3 Family	Intel® Xeon® Processor E3 v3 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.70 GHz	3.60 GHz
Bus Speed	5 GT/s DMI2	5 GT/s DMI2
Manufacturing process technology	22 nm	22 nm
Maximum frequency	4.10 GHz	4.00 GHz
Number of cores	4	4
Number of QPI Links	0	0
Number of threads	8	8
Memory
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s
Maximum memory size	32 GB	32 GB
Supported memory types	DDR3 and DDR3L 1333/1600 at 1.5V	DDR3 and DDR3L 1333/1600 at 1.5V
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1150	FCLGA1150
Thermal Design Power (TDP)	82 Watt	84 Watt
Thermal Solution	PCG 2013D	PCG 2013D
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	3.0	3.0
PCIe configurations	1x16, 2x8, 1x8/2x4	1x16, 2x8, 1x8/2x4
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® SSE4.1, Intel® SSE4.2, Intel® AVX2
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
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics
Execution Units		20
Graphics base frequency		350 MHz
Graphics max dynamic frequency		1.25 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
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