Intel Xeon E5-2643 v3 vs Intel Xeon W-2145

Comparative analysis of Intel Xeon E5-2643 v3 and Intel Xeon W-2145 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.

Intel Xeon E5-2643 v3

Intel Xeon W-2145

Differences

Reasons to consider the Intel Xeon E5-2643 v3

Around 10% higher maximum core temperature: 77.3°C vs 70
Around 50% higher maximum memory size: 768 GB vs 512 GB
Around 4% lower typical power consumption: 135 Watt vs 140 Watt

Maximum core temperature	77.3°C vs 70
Maximum memory size	768 GB vs 512 GB
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	135 Watt vs 140 Watt

Reasons to consider the Intel Xeon W-2145

2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 22% higher clock speed: 4.50 GHz vs 3.70 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 22 nm
Around 26% better performance in PassMark - Single thread mark: 2597 vs 2062
Around 1% better performance in PassMark - CPU mark: 18187 vs 17937

Specifications (specs)
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	4.50 GHz vs 3.70 GHz
Manufacturing process technology	14 nm vs 22 nm
Benchmarks
PassMark - Single thread mark	2597 vs 2062
PassMark - CPU mark	18187 vs 17937

Compare benchmarks

CPU 1: Intel Xeon E5-2643 v3
CPU 2: Intel Xeon W-2145

PassMark - Single thread mark

CPU 1

CPU 2

2062

2597

PassMark - CPU mark

CPU 1

CPU 2

17937

18187

Name	Intel Xeon E5-2643 v3	Intel Xeon W-2145
PassMark - Single thread mark	2062	2597
PassMark - CPU mark	17937	18187
Geekbench 4 - Single Core		1088
Geekbench 4 - Multi-Core		8333

Compare specifications (specs)

	Intel Xeon E5-2643 v3	Intel Xeon W-2145
Essentials
Architecture codename	Haswell	Skylake
Launch date	Q3'14	Q3'17
Place in performance rating	1024	1018
Processor Number	E5-2643V3	W-2145
Series	Intel® Xeon® Processor E5 v3 Family	Intel® Xeon® W Processor
Status	Launched	Launched
Vertical segment	Server	Server
Performance
64 bit support
Base frequency	3.40 GHz	3.70 GHz
Bus Speed	9.6 GT/s QPI	0 GT/s QPI
Manufacturing process technology	22 nm	14 nm
Maximum core temperature	77.3°C	70
Maximum frequency	3.70 GHz	4.50 GHz
Number of cores	6	8
Number of QPI Links	2	0
Number of threads	12	16
VID voltage range	0.65V–1.30V
Number of Ultra Path Interconnect (UPI) Links		0
Memory
Max memory channels	4	4
Maximum memory bandwidth	68 GB/s	85.3 GB/s
Maximum memory size	768 GB	512 GB
Supported memory types	DDR4 1600/1866/2133	DDR4 1600/1866/2133/2400/2666
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	52.5mm x 45mm	45mm x 52.5mm
Sockets supported	FCLGA2011-3	FCLGA2066
Thermal Design Power (TDP)	135 Watt	140 Watt
Peripherals
Max number of PCIe lanes	40	48
PCI Express revision	3.0	3.0
PCIe configurations	x4, x8, x16	x4, x8, x16
Scalability	2S	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Intel® Memory Protection Extensions (Intel® MPX)
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX2	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
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	46-bit
Thermal Monitoring
Intel® Optane™ Memory Supported
Intel® Volume Management Device (VMD)
Number of AVX-512 FMA Units		2
Speed Shift technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)