Intel Xeon E5-4640 v4 vs Intel Xeon E3-1275 v6

Comparative analysis of Intel Xeon E5-4640 v4 and Intel Xeon E3-1275 v6 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.

Intel Xeon E5-4640 v4

Intel Xeon E3-1275 v6

Differences

Reasons to consider the Intel Xeon E5-4640 v4

8 more cores, run more applications at once: 12 vs 4
16 more threads: 24 vs 8
24x more maximum memory size: 1.5 TB vs 64 GB
2.4x better performance in PassMark - CPU mark: 22559 vs 9221

Specifications (specs)
Number of cores	12 vs 4
Number of threads	24 vs 8
Maximum memory size	1.5 TB vs 64 GB
Max number of CPUs in a configuration	4 vs 1
Benchmarks
PassMark - CPU mark	22559 vs 9221

Reasons to consider the Intel Xeon E3-1275 v6

Around 62% higher clock speed: 4.20 GHz vs 2.60 GHz
Around 44% lower typical power consumption: 73 Watt vs 105 Watt
Around 61% better performance in PassMark - Single thread mark: 2535 vs 1573

Specifications (specs)
Maximum frequency	4.20 GHz vs 2.60 GHz
Thermal Design Power (TDP)	73 Watt vs 105 Watt
Benchmarks
PassMark - Single thread mark	2535 vs 1573

Compare benchmarks

CPU 1: Intel Xeon E5-4640 v4
CPU 2: Intel Xeon E3-1275 v6

PassMark - Single thread mark

CPU 1

CPU 2

1573

2535

PassMark - CPU mark

CPU 1

CPU 2

22559

9221

Name	Intel Xeon E5-4640 v4	Intel Xeon E3-1275 v6
PassMark - Single thread mark	1573	2535
PassMark - CPU mark	22559	9221
Geekbench 4 - Single Core		1103
Geekbench 4 - Multi-Core		4237

Compare specifications (specs)

	Intel Xeon E5-4640 v4	Intel Xeon E3-1275 v6
Essentials
Architecture codename	Broadwell	Kaby Lake
Launch date	Q2'16	Q1'17
Place in performance rating	1250	1244
Processor Number	E5-4640V4	E3-1275V6
Series	Intel® Xeon® Processor E5 v4 Family	Intel® Xeon® Processor E3 v6 Family
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.10 GHz	3.80 GHz
Bus Speed	8 GT/s QPI	8 GT/s DMI3
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	80
Maximum frequency	2.60 GHz	4.20 GHz
Number of cores	12	4
Number of QPI Links	2
Number of threads	24	8
VID voltage range		0.55V-1.52V
Memory
Max memory channels	4	2
Maximum memory bandwidth	68 GB/s	37.5 GB/s
Maximum memory size	1.5 TB	64 GB
Supported memory types	DDR4	DDR4-2400, DDR3L-1866
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	4	1
Package Size	45mm x 52.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011-3	FCLGA1151
Thermal Design Power (TDP)	105 Watt	73 Watt
Peripherals
Max number of PCIe lanes	40	16
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16	1x16, 2x8, 1x8+2x4
Scalability	4S	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Intel® Memory Protection Extensions (Intel® MPX)
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Instruction Replay Technology
Intel® TSX-NI
Intel® Turbo Boost technology
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Intel® Optane™ Memory Supported
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
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