Intel Atom C3558 vs Intel Xeon E5649

Comparative analysis of Intel Atom C3558 and Intel Xeon E5649 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, 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).

Intel Atom C3558

Intel Xeon E5649

Differences

Reasons to consider the Intel Atom C3558

Around 31% higher maximum core temperature: 100°C vs 76.2°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
5x lower typical power consumption: 16 Watt vs 80 Watt

Maximum core temperature	100°C vs 76.2°C
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	16 Watt vs 80 Watt

Reasons to consider the Intel Xeon E5649

2 more cores, run more applications at once: 6 vs 4
8 more threads: 12 vs 4
Around 33% higher clock speed: 2.93 GHz vs 2.20 GHz
Around 13% higher maximum memory size: 288 GB vs 256 GB
Around 42% better performance in PassMark - Single thread mark: 1214 vs 856
3.9x better performance in PassMark - CPU mark: 9558 vs 2431

Specifications (specs)
Number of cores	6 vs 4
Number of threads	12 vs 4
Maximum frequency	2.93 GHz vs 2.20 GHz
Maximum memory size	288 GB vs 256 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	1214 vs 856
PassMark - CPU mark	9558 vs 2431

Compare benchmarks

CPU 1: Intel Atom C3558
CPU 2: Intel Xeon E5649

PassMark - Single thread mark

CPU 1

CPU 2

856

1214

PassMark - CPU mark

CPU 1

CPU 2

2431

9558

Name	Intel Atom C3558	Intel Xeon E5649
PassMark - Single thread mark	856	1214
PassMark - CPU mark	2431	9558
Geekbench 4 - Single Core		470
Geekbench 4 - Multi-Core		2849
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		2.594
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		25.435
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.647

Compare specifications (specs)

	Intel Atom C3558	Intel Xeon E5649
Essentials
Architecture codename	Denverton	Westmere EP
Launch date	Q3'17	February 2011
Place in performance rating	2412	2407
Processor Number	C3558	E5649
Series	Intel® Atom™ Processor C Series	Legacy Intel® Xeon® Processors
Status	Launched	Launched
Vertical segment	Server	Server
Launch price (MSRP)		$45
Price now		$115
Value for money (0-100)		17.77
Performance
64 bit support
Base frequency	2.20 GHz	2.53 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	100°C	76.2°C
Maximum frequency	2.20 GHz	2.93 GHz
Number of cores	4	6
Number of QPI Links	0	2
Number of threads	4	12
Number of Ultra Path Interconnect (UPI) Links	0
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)
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: 2133	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)	16 Watt	80 Watt
Peripherals
Integrated LAN
Max number of PCIe lanes	12
Max number of SATA 6 Gb/s Ports	12
Number of USB ports	8
PCI Express revision	3
PCIe configurations	x2,x4,x8
Total number of SATA ports	12
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)