Intel Xeon E5-2620 v3 vs Intel Xeon E3-1275

Comparative analysis of Intel Xeon E5-2620 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, 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).

Intel Xeon E5-2620 v3

Intel Xeon E3-1275

Differences

Reasons to consider the Intel Xeon E5-2620 v3

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
24x more maximum memory size: 768 GB vs 32 GB
Around 12% lower typical power consumption: 85 Watt vs 95 Watt
2.4x better performance in PassMark - CPU mark: 13251 vs 5503

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	768 GB vs 32 GB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	85 Watt vs 95 Watt
Benchmarks
PassMark - CPU mark	13251 vs 5503

Reasons to consider the Intel Xeon E3-1275

Around 19% higher clock speed: 3.80 GHz vs 3.20 GHz
Around 4% better performance in PassMark - Single thread mark: 1770 vs 1695

Specifications (specs)
Maximum frequency	3.80 GHz vs 3.20 GHz
Benchmarks
PassMark - Single thread mark	1770 vs 1695

Compare benchmarks

CPU 1: Intel Xeon E5-2620 v3
CPU 2: Intel Xeon E3-1275

PassMark - Single thread mark

CPU 1

CPU 2

1695

1770

PassMark - CPU mark

CPU 1

CPU 2

13251

5503

Name	Intel Xeon E5-2620 v3	Intel Xeon E3-1275
PassMark - Single thread mark	1695	1770
PassMark - CPU mark	13251	5503
Geekbench 4 - Single Core	697
Geekbench 4 - Multi-Core	3958
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	16.123
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	194.017
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.526
CompuBench 1.5 Desktop - Video Composition (Frames/s)	7.846
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	47.998

Compare specifications (specs)

	Intel Xeon E5-2620 v3	Intel Xeon E3-1275
Essentials
Architecture codename	Haswell	Sandy Bridge
Launch date	Q3'14	April 2011
Place in performance rating	1331	1321
Processor Number	E5-2620V3	E3-1275
Series	Intel® Xeon® Processor E5 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	2.40 GHz	3.40 GHz
Bus Speed	8 GT/s QPI	5 GT/s DMI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	72.6°C	72.6°C
Maximum frequency	3.20 GHz	3.80 GHz
Number of cores	6	4
Number of QPI Links	2
Number of threads	12	8
VID voltage range	0.65V–1.30V
Die size		216 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		8192 KB (shared)
Transistor count		1160 million
Memory
Max memory channels	4	2
Maximum memory bandwidth	59 GB/s	21 GB/s
Maximum memory size	768 GB	32 GB
Supported memory types	DDR4 1600/1866	DDR3 1066/1333
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	52.5mm x 45mm	37.5mm x 37.5mm
Sockets supported	FCLGA2011-3	LGA1155
Thermal Design Power (TDP)	85 Watt	95 Watt
Peripherals
Max number of PCIe lanes	40	20
PCI Express revision	3.0	2.0
PCIe configurations	x4, x8, x16
Scalability	2S
Security & Reliability
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® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	46-bit
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® Fast Memory Access
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