Intel Xeon E5-2637 v3 vs Intel Xeon E5620

Comparative analysis of Intel Xeon E5-2637 v3 and Intel Xeon E5620 processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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).

Intel Xeon E5-2637 v3

Intel Xeon E5620

Differences

Reasons to consider the Intel Xeon E5-2637 v3

Around 39% higher clock speed: 3.70 GHz vs 2.66 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2.7x more maximum memory size: 768 GB vs 288 GB
Around 87% better performance in PassMark - Single thread mark: 2053 vs 1098
2x better performance in PassMark - CPU mark: 13157 vs 6553
Around 67% better performance in Geekbench 4 - Single Core: 740 vs 442
Around 55% better performance in Geekbench 4 - Multi-Core: 3248 vs 2092

Specifications (specs)
Maximum frequency	3.70 GHz vs 2.66 GHz
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	768 GB vs 288 GB
Benchmarks
PassMark - Single thread mark	2053 vs 1098
PassMark - CPU mark	13157 vs 6553
Geekbench 4 - Single Core	740 vs 442
Geekbench 4 - Multi-Core	3248 vs 2092

Reasons to consider the Intel Xeon E5620

Around 1% higher maximum core temperature: 77.6°C vs 76.6°C
Around 69% lower typical power consumption: 80 Watt vs 135 Watt

Maximum core temperature	77.6°C vs 76.6°C
Thermal Design Power (TDP)	80 Watt vs 135 Watt

Compare benchmarks

CPU 1: Intel Xeon E5-2637 v3
CPU 2: Intel Xeon E5620

PassMark - Single thread mark

CPU 1

CPU 2

2053

1098

PassMark - CPU mark

CPU 1

CPU 2

13157

6553

Geekbench 4 - Single Core

CPU 1

CPU 2

740

442

Geekbench 4 - Multi-Core

CPU 1

CPU 2

3248

2092

Name	Intel Xeon E5-2637 v3	Intel Xeon E5620
PassMark - Single thread mark	2053	1098
PassMark - CPU mark	13157	6553
Geekbench 4 - Single Core	740	442
Geekbench 4 - Multi-Core	3248	2092
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.552
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		62.536
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.469
CompuBench 1.5 Desktop - Video Composition (Frames/s)		2.559
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		7.383

Compare specifications (specs)

	Intel Xeon E5-2637 v3	Intel Xeon E5620
Essentials
Architecture codename	Haswell	Westmere EP
Launch date	Q3'14	March 2010
Place in performance rating	1550	2678
Processor Number	E5-2637V3	E5620
Series	Intel® Xeon® Processor E5 v3 Family	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$35
Price now		$25.99
Value for money (0-100)		55.06
Performance
64 bit support
Base frequency	3.50 GHz	2.40 GHz
Bus Speed	9.6 GT/s QPI	5.86 GT/s QPI
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	76.6°C	77.6°C
Maximum frequency	3.70 GHz	2.66 GHz
Number of cores	4	4
Number of QPI Links	2	2
Number of threads	8	8
VID voltage range	0.65V–1.30V	0.750V-1.350V
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Transistor count		1170 million
Memory
Max memory channels	4	3
Maximum memory bandwidth	68 GB/s	25.6 GB/s
Maximum memory size	768 GB	288 GB
Supported memory types	DDR4 1600/1866/2133	DDR3 800/1066
ECC memory support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	52.5mm x 45mm	42.5mm X 45mm
Sockets supported	FCLGA2011-3	FCLGA1366
Thermal Design Power (TDP)	135 Watt	80 Watt
Peripherals
Max number of PCIe lanes	40
PCI Express revision	3.0
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® SSE4.2
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	40-bit
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)