Intel Atom C3858 vs Intel Xeon E5603

Comparative analysis of Intel Atom C3858 and Intel Xeon E5603 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 C3858

Intel Xeon E5603

Differences

Reasons to consider the Intel Atom C3858

8 more cores, run more applications at once: 12 vs 4
8 more threads: 12 vs 4
Around 25% higher clock speed: 2.00 GHz vs 1.6 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
3.2x lower typical power consumption: 25 Watt vs 80 Watt
Around 33% better performance in PassMark - CPU mark: 4707 vs 3548

Specifications (specs)
Number of cores	12 vs 4
Number of threads	12 vs 4
Maximum frequency	2.00 GHz vs 1.6 GHz
Manufacturing process technology	14 nm vs 32 nm
Thermal Design Power (TDP)	25 Watt vs 80 Watt
Benchmarks
PassMark - CPU mark	4707 vs 3548

Reasons to consider the Intel Xeon E5603

Around 13% higher maximum memory size: 288 GB vs 256 GB
Around 9% better performance in PassMark - Single thread mark: 710 vs 652

Specifications (specs)
Maximum memory size	288 GB vs 256 GB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - Single thread mark	710 vs 652

Compare benchmarks

CPU 1: Intel Atom C3858
CPU 2: Intel Xeon E5603

PassMark - Single thread mark

CPU 1

CPU 2

652

710

PassMark - CPU mark

CPU 1

CPU 2

4707

3548

Name	Intel Atom C3858	Intel Xeon E5603
PassMark - Single thread mark	652	710
PassMark - CPU mark	4707	3548

Compare specifications (specs)

	Intel Atom C3858	Intel Xeon E5603
Essentials
Architecture codename	Denverton	Westmere EP
Launch date	Q3'17	February 2011
Place in performance rating	2593	2569
Processor Number	C3858	E5603
Series	Intel® Atom™ Processor C Series	Legacy Intel® Xeon® Processors
Status	Launched	Discontinued
Vertical segment	Server	Server
Launch price (MSRP)		$286
Price now		$129.04
Value for money (0-100)		5.40
Performance
64 bit support
Base frequency	2.00 GHz	1.60 GHz
Manufacturing process technology	14 nm	32 nm
Maximum core temperature	100°C
Maximum frequency	2.00 GHz	1.6 GHz
Number of cores	12	4
Number of QPI Links	0	2
Number of threads	12	4
Number of Ultra Path Interconnect (UPI) Links	0
Bus Speed		4.8 GT/s QPI
Die size		239 mm
L1 cache		64 KB (per core)
L2 cache		256 KB (per core)
L3 cache		4096 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
ECC memory support
Maximum memory bandwidth		25.6 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)	25 Watt	80 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)