Intel Xeon E3-1271 v3 vs Intel Xeon E3-1275

Comparative analysis of Intel Xeon E3-1271 v3 and Intel Xeon E3-1275 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics, Graphics interfaces. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon E3-1271 v3

Intel Xeon E3-1275

Differences

Reasons to consider the Intel Xeon E3-1271 v3

Around 5% higher clock speed: 4.00 GHz vs 3.80 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 19% lower typical power consumption: 80 Watt vs 95 Watt
Around 29% better performance in PassMark - Single thread mark: 2279 vs 1773
Around 37% better performance in PassMark - CPU mark: 7534 vs 5516

Specifications (specs)
Maximum frequency	4.00 GHz vs 3.80 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	80 Watt vs 95 Watt
Benchmarks
PassMark - Single thread mark	2279 vs 1773
PassMark - CPU mark	7534 vs 5516

Compare benchmarks

CPU 1: Intel Xeon E3-1271 v3
CPU 2: Intel Xeon E3-1275

PassMark - Single thread mark

CPU 1

CPU 2

2279

1773

PassMark - CPU mark

CPU 1

CPU 2

7534

5516

Name	Intel Xeon E3-1271 v3	Intel Xeon E3-1275
PassMark - Single thread mark	2279	1773
PassMark - CPU mark	7534	5516
Geekbench 4 - Single Core	965
Geekbench 4 - Multi-Core	3597

Compare specifications (specs)

	Intel Xeon E3-1271 v3	Intel Xeon E3-1275
Essentials
Architecture codename	Haswell	Sandy Bridge
Launch date	Q2'14	April 2011
Place in performance rating	1417	1410
Processor Number	E3-1271V3	E3-1275
Series	Intel® Xeon® Processor E3 v3 Family	Intel® Xeon® Processor E3 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$450
Price now		$304
Value for money (0-100)		8.09
Performance
64 bit support
Base frequency	3.60 GHz	3.40 GHz
Bus Speed	5 GT/s DMI2	5 GT/s DMI
Manufacturing process technology	22 nm	32 nm
Maximum frequency	4.00 GHz	3.80 GHz
Number of cores	4	4
Number of QPI Links	0
Number of threads	8	8
Die size		216 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		8192 KB (shared)
Maximum core temperature		72.6°C
Transistor count		1160 million
Memory
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21 GB/s
Maximum memory size	32 GB	32 GB
Supported memory types	DDR3 and DDR3L 1333/1600 at 1.5V	DDR3 1066/1333
ECC memory support
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	LGA1155
Thermal Design Power (TDP)	80 Watt	95 Watt
Thermal Solution	PCG 2013D
Peripherals
Max number of PCIe lanes	16	20
PCI Express revision	3.0	2.0
PCIe configurations	1x16, 2x8, 1x8/2x4
Scalability	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® 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
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics
Graphics base frequency		850 MHz
Graphics max dynamic frequency		1.35 GHz
Graphics max frequency		1.35 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics		Intel HD Graphics P3000
Graphics interfaces
Number of displays supported		2
Wireless Display (WiDi) support