Intel Xeon E3-1265L v3 vs Intel Xeon L5638

Comparative analysis of Intel Xeon E3-1265L v3 and Intel Xeon L5638 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).

Intel Xeon E3-1265L v3

Intel Xeon L5638

Differences

Reasons to consider the Intel Xeon E3-1265L v3

CPU is newer: launch date 3 year(s) 3 month(s) later
Around 54% higher clock speed: 3.70 GHz vs 2.40 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 33% lower typical power consumption: 45 Watt vs 60 Watt
2.2x better performance in PassMark - Single thread mark: 2063 vs 944

Specifications (specs)
Launch date	June 2013 vs March 2010
Maximum frequency	3.70 GHz vs 2.40 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	45 Watt vs 60 Watt
Benchmarks
PassMark - Single thread mark	2063 vs 944

Reasons to consider the Intel Xeon L5638

2 more cores, run more applications at once: 6 vs 4
4 more threads: 12 vs 8
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 16% better performance in PassMark - CPU mark: 7217 vs 6205

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 8
L1 cache	64 KB (per core) vs 64 KB (per core)
L2 cache	256 KB (per core) vs 256 KB (per core)
L3 cache	12288 KB (shared) vs 8192 KB (shared)
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	7217 vs 6205

Compare benchmarks

CPU 1: Intel Xeon E3-1265L v3
CPU 2: Intel Xeon L5638

PassMark - Single thread mark

CPU 1

CPU 2

2063

944

PassMark - CPU mark

CPU 1

CPU 2

6205

7217

Name	Intel Xeon E3-1265L v3	Intel Xeon L5638
PassMark - Single thread mark	2063	944
PassMark - CPU mark	6205	7217
Geekbench 4 - Single Core	877
Geekbench 4 - Multi-Core	3027
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.342
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	76.645
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.552
CompuBench 1.5 Desktop - Video Composition (Frames/s)	2.18
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	5.406

Compare specifications (specs)

	Intel Xeon E3-1265L v3	Intel Xeon L5638
Essentials
Architecture codename	Haswell	Westmere EP
Launch date	June 2013	March 2010
Launch price (MSRP)	$710	$90
Place in performance rating	2187	2178
Price now	$709.95	$69.90
Processor Number	E3-1265Lv3	L5638
Series	Intel® Xeon® Processor E3 v3 Family	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Value for money (0-100)	3.62	23.41
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	2.50 GHz	2.00 GHz
Bus Speed	5 GT/s DMI	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	8192 KB (shared)	12288 KB (shared)
Manufacturing process technology	22 nm	32 nm
Maximum frequency	3.70 GHz	2.40 GHz
Number of cores	4	6
Number of QPI Links	0	2
Number of threads	8	12
Transistor count	1400 million	1170 million
Maximum core temperature		85°C
VID voltage range		1.0 - 1.5V
Memory
ECC memory support
Max memory channels	2
Maximum memory bandwidth	25.6 GB/s
Maximum memory size	32 GB
Supported memory types	DDR3 and DDR3L 1333/1600 at 1.5V	DDR3
Graphics
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 GHz
Graphics max frequency	1.2 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
Graphics interfaces
Number of displays supported	3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm
Sockets supported	FCLGA1150	FCLGA1366
Thermal Design Power (TDP)	45 Watt	60 Watt
Thermal Solution	PCG 2013B
Peripherals
Max number of PCIe lanes	16
PCI Express revision	3.0
PCIe configurations	1x16, 2x8, 1x8/2x4
Scalability	1S Only
Security & Reliability
Anti-Theft technology
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
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Stable Image Platform Program (SIPP)
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)