Intel Xeon Silver 4108 vs Intel Xeon X5647

Comparative analysis of Intel Xeon Silver 4108 and Intel Xeon X5647 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 Silver 4108

Intel Xeon X5647

Differences

Reasons to consider the Intel Xeon Silver 4108

4 more cores, run more applications at once: 8 vs 4
8 more threads: 16 vs 8
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
2.7x more maximum memory size: 768 GB vs 288 GB
Around 53% lower typical power consumption: 85 Watt vs 130 Watt
Around 15% better performance in PassMark - Single thread mark: 1630 vs 1418
Around 88% better performance in PassMark - CPU mark: 15718 vs 8369

Specifications (specs)
Number of cores	8 vs 4
Number of threads	16 vs 8
Manufacturing process technology	14 nm vs 32 nm
Maximum memory size	768 GB vs 288 GB
Thermal Design Power (TDP)	85 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	1630 vs 1418
PassMark - CPU mark	15718 vs 8369

Reasons to consider the Intel Xeon X5647

Around 7% higher clock speed: 3.20 GHz vs 3.00 GHz
Around 4% higher maximum core temperature: 80.4°C vs 77°C

Maximum frequency	3.20 GHz vs 3.00 GHz
Maximum core temperature	80.4°C vs 77°C

Compare benchmarks

CPU 1: Intel Xeon Silver 4108
CPU 2: Intel Xeon X5647

PassMark - Single thread mark

CPU 1

CPU 2

1630

1418

PassMark - CPU mark

CPU 1

CPU 2

15718

8369

Name	Intel Xeon Silver 4108	Intel Xeon X5647
PassMark - Single thread mark	1630	1418
PassMark - CPU mark	15718	8369
Geekbench 4 - Single Core	704
Geekbench 4 - Multi-Core	4727

Compare specifications (specs)

	Intel Xeon Silver 4108	Intel Xeon X5647
Essentials
Architecture codename	Skylake	Westmere EP
Launch date	Q3'17	February 2011
Place in performance rating	1517	1527
Processor Number	4108	X5647
Series	Intel® Xeon® Scalable Processors	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$175
Price now		$199.75
Value for money (0-100)		8.82
Performance
Base frequency	1.80 GHz	2.93 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	77°C	80.4°C
Maximum frequency	3.00 GHz	3.20 GHz
Number of cores	8	4
Number of threads	16	8
Number of Ultra Path Interconnect (UPI) Links	2
64 bit support
Bus Speed		5.86 GT/s QPI
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		12288 KB (shared)
Number of QPI Links		2
Transistor count		1170 million
VID voltage range		0.750V-1.350V
Memory
Max memory channels	6	3
Maximum memory size	768 GB	288 GB
Supported memory frequency	2400 MHz
Supported memory types	DDR4-2400	DDR3 800/1066
ECC memory support
Maximum memory bandwidth		25.6 GB/s
Compatibility
Low Halogen Options Available
Package Size	76.0mm x 56.5mm	42.5mm X 45mm
Sockets supported	FCLGA3647	FCLGA1366
Thermal Design Power (TDP)	85 Watt	130 Watt
Max number of CPUs in a configuration		2
Peripherals
Max number of PCIe lanes	48
PCI Express revision	3.0
Scalability	2S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Mode-based Execute Control (MBE)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Intel® vPro™ Platform Eligibility
Number of AVX-512 FMA Units	1
Speed Shift technology
Idle States
Intel® Demand Based Switching
Physical Address Extensions (PAE)		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)