Intel Xeon E3-1205 v6 vs Intel Xeon E3-1275 v5

Comparative analysis of Intel Xeon E3-1205 v6 and Intel Xeon E3-1275 v5 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.

Intel Xeon E3-1205 v6

Intel Xeon E3-1275 v5

Differences

Reasons to consider the Intel Xeon E3-1205 v6

Around 23% lower typical power consumption: 65 Watt vs 80 Watt

Thermal Design Power (TDP)	65 Watt vs 80 Watt

Reasons to consider the Intel Xeon E3-1275 v5

4 more threads: 8 vs 4
Around 33% higher clock speed: 4.00 GHz vs 3.00 GHz
Around 25% better performance in PassMark - Single thread mark: 2348 vs 1875
Around 49% better performance in PassMark - CPU mark: 8464 vs 5682

Specifications (specs)
Number of threads	8 vs 4
Maximum frequency	4.00 GHz vs 3.00 GHz
Benchmarks
PassMark - Single thread mark	2348 vs 1875
PassMark - CPU mark	8464 vs 5682

Compare benchmarks

CPU 1: Intel Xeon E3-1205 v6
CPU 2: Intel Xeon E3-1275 v5

PassMark - Single thread mark

CPU 1

CPU 2

1875

2348

PassMark - CPU mark

CPU 1

CPU 2

5682

8464

Name	Intel Xeon E3-1205 v6	Intel Xeon E3-1275 v5
PassMark - Single thread mark	1875	2348
PassMark - CPU mark	5682	8464
Geekbench 4 - Single Core		1072
Geekbench 4 - Multi-Core		3722

Compare specifications (specs)

	Intel Xeon E3-1205 v6	Intel Xeon E3-1275 v5
Essentials
Architecture codename	Kaby Lake	Skylake
Launch date	28 Mar 2017	Q4'15
Launch price (MSRP)	$193
Place in performance rating	1236	1251
Processor Number	E3-1205V6	E3-1275V5
Series	Intel Xeon Processor E3 v6 Family	Intel® Xeon® Processor E3 v5 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.00 GHz	3.60 GHz
Bus Speed	8 GT/s	8 GT/s DMI3
L1 cache	256 KB
L2 cache	1 MB
L3 cache	8 MB
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.00 GHz	4.00 GHz
Number of cores	4	4
Number of threads	4	8
VID voltage range	0.55V-1.52V	0.55V-1.52V
Memory
Max memory channels	2	2
Maximum memory bandwidth	37.5 GB/s	34.1 GB/s
Maximum memory size	64 GB	64 GB
Supported memory types	DDR4-2400, DDR3L-1866	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Graphics
Device ID	0x191D	0x191D
Graphics base frequency	350 MHz	400 MHz
Graphics max dynamic frequency	1.00 GHz	1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	1.7 GB	64 GB
Processor graphics	Intel HD Graphics P630	Intel® HD Graphics P530
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported	3	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2160@24Hz	4096x2304@24Hz
Graphics API support
DirectX	12	12
OpenGL	4.4	4.4
Compatibility
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1151	FCLGA1151
Thermal Design Power (TDP)	65 Watt	80 Watt
Low Halogen Options Available
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
Execute Disable Bit (EDB)
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
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® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® TSX-NI
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)