Intel Atom C3958 vs Intel Xeon E5-2403

Comparative analysis of Intel Atom C3958 and Intel Xeon E5-2403 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.

Intel Atom C3958

Intel Xeon E5-2403

Differences

Reasons to consider the Intel Atom C3958

12 more cores, run more applications at once: 16 vs 4
12 more threads: 16 vs 4
Around 11% higher clock speed: 2.00 GHz vs 1.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
2.6x lower typical power consumption: 31 Watt vs 80 Watt
Around 66% better performance in PassMark - CPU mark: 3929 vs 2367

Specifications (specs)
Number of cores	16 vs 4
Number of threads	16 vs 4
Maximum frequency	2.00 GHz vs 1.8 GHz
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	31 Watt vs 80 Watt
Benchmarks
PassMark - CPU mark	3929 vs 2367

Reasons to consider the Intel Xeon E5-2403

Around 50% higher maximum memory size: 384 GB vs 256 GB
Around 9% better performance in PassMark - Single thread mark: 802 vs 737

Specifications (specs)
Maximum memory size	384 GB vs 256 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	802 vs 737

Compare benchmarks

CPU 1: Intel Atom C3958
CPU 2: Intel Xeon E5-2403

PassMark - Single thread mark

CPU 1

CPU 2

737

802

PassMark - CPU mark

CPU 1

CPU 2

3929

2367

Name	Intel Atom C3958	Intel Xeon E5-2403
PassMark - Single thread mark	737	802
PassMark - CPU mark	3929	2367

Compare specifications (specs)

	Intel Atom C3958	Intel Xeon E5-2403
Essentials
Architecture codename	Denverton	Sandy Bridge EN
Launch date	Q3'17	May 2012
Place in performance rating	2511	2487
Processor Number	C3958	E5-2403
Series	Intel® Atom™ Processor C Series	Intel® Xeon® Processor E5 Family
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$230
Price now		$364.97
Value for money (0-100)		2.84
Performance
64 bit support
Base frequency	2.00 GHz	1.80 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	100°C
Maximum frequency	2.00 GHz	1.8 GHz
Number of cores	16	4
Number of QPI Links	0	1
Number of threads	16	4
Number of Ultra Path Interconnect (UPI) Links	0
Bus Speed		6.4 GT/s QPI
Die size		294 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		10240 KB (shared)
Transistor count		1270 million
VID voltage range		0.6V-1.35V
Memory
Max memory channels	2	3
Maximum memory size	256 GB	384 GB
Supported memory types	DDR4: 2400	DDR3 800/1066
ECC memory support
Maximum memory bandwidth		25 GB/s
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	34 mm x 28 mm	45mm x 42.5mm
Sockets supported	FCBGA1310	FCLGA1356
Thermal Design Power (TDP)	31 Watt	80 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	16	24
Max number of SATA 6 Gb/s Ports	16
Number of USB ports	8
PCI Express revision	3	3.0
PCIe configurations	x2,x4,x8
Total number of SATA ports	16
USB revision	3
Scalability		2S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Secure Boot
Intel® Identity Protection technology
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® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® Demand Based Switching
Intel® Flex Memory Access
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)