Intel Atom Z650 vs Intel Xeon E3-1220L

Comparative analysis of Intel Atom Z650 and Intel Xeon E3-1220L processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Atom Z650

Intel Xeon E3-1220L

Differences

Reasons to consider the Intel Atom Z650

Around 16% higher maximum core temperature: 90 vs 77.5°C
6.7x lower typical power consumption: 3 Watt vs 20 Watt

Maximum core temperature	90 vs 77.5°C
Thermal Design Power (TDP)	3 Watt vs 20 Watt

Reasons to consider the Intel Xeon E3-1220L

1 more cores, run more applications at once: 2 vs 1
2 more threads: 4 vs 2
Around 183% higher clock speed: 3.40 GHz vs 1.2 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
2x more L1 cache, more data can be stored in the L1 cache for quick access later
10.9x more maximum memory size: 32 GB vs 2.93 GB

Number of cores	2 vs 1
Number of threads	4 vs 2
Maximum frequency	3.40 GHz vs 1.2 GHz
Manufacturing process technology	32 nm vs 45 nm
L1 cache	64 KB (per core) vs 64 KB (per core)
Maximum memory size	32 GB vs 2.93 GB

Compare benchmarks

CPU 1: Intel Atom Z650
CPU 2: Intel Xeon E3-1220L

Name	Intel Atom Z650	Intel Xeon E3-1220L
PassMark - Single thread mark		1604
PassMark - CPU mark		2295

Compare specifications (specs)

	Intel Atom Z650	Intel Xeon E3-1220L
Essentials
Architecture codename	Lincroft	Sandy Bridge
Launch date	April 2011	April 2011
Place in performance rating	not rated	1627
Processor Number	Z650	E3-1220L
Series	Legacy Intel Atom® Processors	Intel® Xeon® Processor E3 Family
Status	Discontinued	Discontinued
Vertical segment	Mobile	Server
Performance
Base frequency	1.20 GHz	2.20 GHz
Die size	65 mm	131 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	512 KB (per core)	256 KB (per core)
Manufacturing process technology	45 nm	32 nm
Maximum core temperature	90	77.5°C
Maximum frequency	1.2 GHz	3.40 GHz
Number of cores	1	2
Number of threads	2	4
Transistor count	140 million	504 million
VID voltage range	1.1125-1.5000V
64 bit support
Bus Speed		5 GT/s DMI
L3 cache		3072 KB (shared)
Memory
Max memory channels	1	2
Maximum memory size	2.93 GB	32 GB
Supported memory types	DDR2 800	DDR3 1066/1333
ECC memory support
Maximum memory bandwidth		21 GB/s
Graphics
Graphics base frequency	400 MHz
Processor graphics	Integrated
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Graphics interfaces
LVDS
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	13.8mmx13.8mm	37.5mm x 37.5mm
Sockets supported	T-PBGA518	FCLGA1155
Thermal Design Power (TDP)	3 Watt	20 Watt
Peripherals
PCI support
Max number of PCIe lanes		20
PCI Express revision		2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE, Intel® SSE2, Intel® SSE3	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX
Intel 64
Intel® Hyper-Threading technology
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)