Intel Atom C3958 vs Intel Xeon X5687

Comparative analysis of Intel Atom C3958 and Intel Xeon X5687 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, 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 Atom C3958

Intel Xeon X5687

Differences

Reasons to consider the Intel Atom C3958

12 more cores, run more applications at once: 16 vs 4
8 more threads: 16 vs 8
Around 24% higher maximum core temperature: 100°C vs 80.4°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
4.2x lower typical power consumption: 31 Watt vs 130 Watt

Number of cores	16 vs 4
Number of threads	16 vs 8
Maximum core temperature	100°C vs 80.4°C
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	31 Watt vs 130 Watt

Reasons to consider the Intel Xeon X5687

Around 93% higher clock speed: 3.86 GHz vs 2.00 GHz
Around 13% higher maximum memory size: 288 GB vs 256 GB
2.2x better performance in PassMark - Single thread mark: 1658 vs 737
2.4x better performance in PassMark - CPU mark: 9406 vs 3929

Specifications (specs)
Maximum frequency	3.86 GHz vs 2.00 GHz
Maximum memory size	288 GB vs 256 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1658 vs 737
PassMark - CPU mark	9406 vs 3929

Compare benchmarks

CPU 1: Intel Atom C3958
CPU 2: Intel Xeon X5687

PassMark - Single thread mark

CPU 1

CPU 2

737

1658

PassMark - CPU mark

CPU 1

CPU 2

3929

9406

Name	Intel Atom C3958	Intel Xeon X5687
PassMark - Single thread mark	737	1658
PassMark - CPU mark	3929	9406
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.191
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		62.153
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.384
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.49
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.238

Compare specifications (specs)

	Intel Atom C3958	Intel Xeon X5687
Essentials
Architecture codename	Denverton	Westmere EP
Launch date	Q3'17	February 2011
Place in performance rating	2510	2519
Processor Number	C3958	X5687
Series	Intel® Atom™ Processor C Series	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$121
Price now		$51.66
Value for money (0-100)		40.41
Performance
64 bit support
Base frequency	2.00 GHz	3.60 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	100°C	80.4°C
Maximum frequency	2.00 GHz	3.86 GHz
Number of cores	16	4
Number of QPI Links	0	2
Number of threads	16	8
Number of Ultra Path Interconnect (UPI) Links	0
Bus Speed		6.4 GT/s QPI
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
VID voltage range		0.750V-1.350V
Memory
Max memory channels	2	3
Maximum memory size	256 GB	288 GB
Supported memory types	DDR4: 2400	DDR3 800/1066/1333
ECC memory support
Maximum memory bandwidth		32 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	34 mm x 28 mm	42.5mm X 45mm
Sockets supported	FCBGA1310	FCLGA1366
Thermal Design Power (TDP)	31 Watt	130 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	16
Max number of SATA 6 Gb/s Ports	16
Number of USB ports	8
PCI Express revision	3
PCIe configurations	x2,x4,x8
Total number of SATA ports	16
USB revision	3
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Integrated Intel® QuickAssist Technology
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions		Intel® SSE4.2
Intel 64
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)