Intel Xeon E5-2620 v2 vs Intel Xeon L5638

Comparative analysis of Intel Xeon E5-2620 v2 and Intel Xeon L5638 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 - Video Composition (Frames/s).

Intel Xeon E5-2620 v2

Intel Xeon L5638

Differences

Reasons to consider the Intel Xeon E5-2620 v2

CPU is newer: launch date 3 year(s) 6 month(s) later
Around 8% higher clock speed: 2.60 GHz vs 2.40 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 25% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 36% better performance in PassMark - Single thread mark: 1283 vs 944
Around 50% better performance in PassMark - CPU mark: 10850 vs 7217

Specifications (specs)
Launch date	September 2013 vs March 2010
Maximum frequency	2.60 GHz vs 2.40 GHz
Manufacturing process technology	22 nm vs 32 nm
L3 cache	15360 KB (shared) vs 12288 KB (shared)
Benchmarks
PassMark - Single thread mark	1283 vs 944
PassMark - CPU mark	10850 vs 7217

Reasons to consider the Intel Xeon L5638

Around 20% higher maximum core temperature: 85°C vs 71°C
Around 33% lower typical power consumption: 60 Watt vs 80 Watt

Maximum core temperature	85°C vs 71°C
Thermal Design Power (TDP)	60 Watt vs 80 Watt

Compare benchmarks

CPU 1: Intel Xeon E5-2620 v2
CPU 2: Intel Xeon L5638

PassMark - Single thread mark

CPU 1

CPU 2

1283

944

PassMark - CPU mark

CPU 1

CPU 2

10850

7217

Name	Intel Xeon E5-2620 v2	Intel Xeon L5638
PassMark - Single thread mark	1283	944
PassMark - CPU mark	10850	7217
Geekbench 4 - Single Core	483
Geekbench 4 - Multi-Core	3141
CompuBench 1.5 Desktop - Video Composition (Frames/s)	4.092

Compare specifications (specs)

	Intel Xeon E5-2620 v2	Intel Xeon L5638
Essentials
Architecture codename	Ivy Bridge EP	Westmere EP
Launch date	September 2013	March 2010
Launch price (MSRP)	$417	$90
Place in performance rating	2154	2148
Price now	$42.59	$69.90
Processor Number	E5-2620V2	L5638
Series	Intel® Xeon® Processor E5 v2 Family	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Value for money (0-100)	60.17	23.41
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.10 GHz	2.00 GHz
Bus Speed	7.2 GT/s QPI	5.86 GT/s QPI
Die size	160 mm	239 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	15360 KB (shared)	12288 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	71°C	85°C
Maximum frequency	2.60 GHz	2.40 GHz
Number of cores	6	6
Number of QPI Links	2	2
Number of threads	12	12
Transistor count	1400 million	1170 million
VID voltage range	0.65–1.30V	1.0 - 1.5V
Memory
ECC memory support
Max memory channels	4
Maximum memory bandwidth	51.2 GB/s
Maximum memory size	768 GB
Supported memory types	DDR3 800/1066/1333/1600	DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	2
Package Size	52.5mm x 45mm
Sockets supported	FCLGA2011	FCLGA1366
Thermal Design Power (TDP)	80 Watt	60 Watt
Peripherals
Max number of PCIe lanes	40
PCI Express revision	3.0
PCIe configurations	x4, x8, x16
Scalability	2S Only
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® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
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
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)