Intel Xeon E3-1275 v2 vs Intel Xeon E5-1620

Comparative analysis of Intel Xeon E3-1275 v2 and Intel Xeon E5-1620 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, 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, 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), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Physics Score.

Intel Xeon E3-1275 v2

Intel Xeon E5-1620

Differences

Reasons to consider the Intel Xeon E3-1275 v2

CPU is newer: launch date 2 month(s) later
Around 3% higher clock speed: 3.90 GHz vs 3.80 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 69% lower typical power consumption: 77 Watt vs 130 Watt
Around 20% better performance in PassMark - Single thread mark: 2119 vs 1769
Around 13% better performance in PassMark - CPU mark: 6630 vs 5859
Around 12% better performance in Geekbench 4 - Single Core: 821 vs 730

Specifications (specs)
Launch date	May 2012 vs March 2012
Maximum frequency	3.90 GHz vs 3.80 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	77 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	2119 vs 1769
PassMark - CPU mark	6630 vs 5859
Geekbench 4 - Single Core	821 vs 730

Reasons to consider the Intel Xeon E5-1620

Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
11.4x more maximum memory size: 375 GB vs 32.77 GB
Around 1% better performance in Geekbench 4 - Multi-Core: 3096 vs 3076

Specifications (specs)
L3 cache	10240 KB (shared) vs 8192 KB (shared)
Maximum memory size	375 GB vs 32.77 GB
Benchmarks
Geekbench 4 - Multi-Core	3096 vs 3076

Compare benchmarks

CPU 1: Intel Xeon E3-1275 v2
CPU 2: Intel Xeon E5-1620

PassMark - Single thread mark

CPU 1

CPU 2

2119

1769

PassMark - CPU mark

CPU 1

CPU 2

6630

5859

Geekbench 4 - Single Core

CPU 1

CPU 2

821

730

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3076

3096

Name	Intel Xeon E3-1275 v2	Intel Xeon E5-1620
PassMark - Single thread mark	2119	1769
PassMark - CPU mark	6630	5859
Geekbench 4 - Single Core	821	730
Geekbench 4 - Multi-Core	3076	3096
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.685
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	15.885
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.56
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.319
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.602
GFXBench 4.0 - T-Rex (Frames)	2590
GFXBench 4.0 - T-Rex (Fps)	2590
3DMark Fire Strike - Physics Score		0

Compare specifications (specs)

	Intel Xeon E3-1275 v2	Intel Xeon E5-1620
Essentials
Architecture codename	Ivy Bridge	Sandy Bridge EP
Launch date	May 2012	March 2012
Launch price (MSRP)	$808	$313
Place in performance rating	2005	2015
Price now	$394.72	$329.93
Processor Number	E3-1275V2	E5-1620
Series	Intel® Xeon® Processor E3 v2 Family	Intel® Xeon® Processor E5 Family
Status	Launched	Discontinued
Value for money (0-100)	7.05	8.09
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.50 GHz	3.60 GHz
Bus Speed	5 GT/s DMI	0 QPI
Die size	160 mm	294 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8192 KB (shared)	10240 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum frequency	3.90 GHz	3.80 GHz
Number of cores	4	4
Number of threads	8	8
Transistor count	1400 million	1270 million
Maximum core temperature		64.0 °C
Number of QPI Links		0
VID voltage range		0.60V - 1.35V
Memory
ECC memory support
Max memory channels	2	4
Maximum memory bandwidth	25.6 GB/s	51.2 GB/s
Maximum memory size	32.77 GB	375 GB
Supported memory types	DDR3 1333/1600	DDR3 800/1066/1333/1600
Graphics
Graphics base frequency	650 MHz
Graphics max dynamic frequency	1.25 GHz
Graphics max frequency	1.25 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 P4000
Graphics interfaces
Number of displays supported	3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	52.5mm x 45.0 mm
Sockets supported	FCLGA1155	FCLGA2011
Thermal Design Power (TDP)	77 Watt	130 Watt
Peripherals
PCI Express revision	3.0	3.0
PCIe configurations	1x16 & 1x4, 2x8 & 1x4 or 1x8 & 3x4
Max number of PCIe lanes		40
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX	Intel® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
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)