Intel Xeon E3-1275 v6 vs Intel Xeon D-1520

Comparative analysis of Intel Xeon E3-1275 v6 and Intel Xeon D-1520 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 E3-1275 v6

Intel Xeon D-1520

Differences

Reasons to consider the Intel Xeon E3-1275 v6

Around 62% higher clock speed: 4.20 GHz vs 2.60 GHz
2x better performance in PassMark - Single thread mark: 2549 vs 1270
Around 89% better performance in PassMark - CPU mark: 9285 vs 4917

Specifications (specs)
Maximum frequency	4.20 GHz vs 2.60 GHz
Benchmarks
PassMark - Single thread mark	2549 vs 1270
PassMark - CPU mark	9285 vs 4917

Reasons to consider the Intel Xeon D-1520

2x more maximum memory size: 128 GB vs 64 GB
Around 62% lower typical power consumption: 45 Watt vs 73 Watt
Around 95% better performance in Geekbench 4 - Single Core: 2155 vs 1103
Around 73% better performance in Geekbench 4 - Multi-Core: 7331 vs 4237

Specifications (specs)
Maximum memory size	128 GB vs 64 GB
Thermal Design Power (TDP)	45 Watt vs 73 Watt
Benchmarks
Geekbench 4 - Single Core	2155 vs 1103
Geekbench 4 - Multi-Core	7331 vs 4237

Compare benchmarks

CPU 1: Intel Xeon E3-1275 v6
CPU 2: Intel Xeon D-1520

PassMark - Single thread mark

CPU 1

CPU 2

2549

1270

PassMark - CPU mark

CPU 1

CPU 2

9285

4917

Geekbench 4 - Single Core

CPU 1

CPU 2

1103

2155

Geekbench 4 - Multi-Core

CPU 1

CPU 2

4237

7331

Name	Intel Xeon E3-1275 v6	Intel Xeon D-1520
PassMark - Single thread mark	2549	1270
PassMark - CPU mark	9285	4917
Geekbench 4 - Single Core	1103	2155
Geekbench 4 - Multi-Core	4237	7331

Compare specifications (specs)

	Intel Xeon E3-1275 v6	Intel Xeon D-1520
Essentials
Architecture codename	Kaby Lake	Broadwell
Launch date	Q1'17	Q1'15
Place in performance rating	1232	1243
Processor Number	E3-1275V6	D-1520
Series	Intel® Xeon® Processor E3 v6 Family	Intel® Xeon® D Processor
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.80 GHz	2.20 GHz
Bus Speed	8 GT/s DMI3
Manufacturing process technology	14 nm	14 nm
Maximum frequency	4.20 GHz	2.60 GHz
Number of cores	4	4
Number of threads	8	8
VID voltage range	0.55V-1.52V
Maximum core temperature		80°C
Memory
Max memory channels	2	2
Maximum memory bandwidth	37.5 GB/s
Maximum memory size	64 GB	128 GB
Supported memory types	DDR4-2400, DDR3L-1866	DDR4
Supported memory frequency		2133 MHz
Graphics
Device ID	0x591D
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.15 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® HD Graphics P630
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2160@24Hz
Graphics API support
DirectX	12
OpenGL	4.4
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	FCLGA1151	FCBGA1667
Thermal Design Power (TDP)	73 Watt	45 Watt
Peripherals
Max number of PCIe lanes	16	32
PCI Express revision	3.0	2.0/3.0
PCIe configurations	1x16, 2x8, 1x8+2x4	x4 x8 x16
Scalability	1S Only	1S Only
Integrated LAN
Number of USB ports		8
Total number of SATA ports		6
UART
USB revision		2.0/3.0
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® AVX2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
General-Purpose Input/Output (GPIO)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)