Intel Atom Z2420 vs Intel Celeron 947UE

Comparative analysis of Intel Atom Z2420 and Intel Celeron 947UE processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization.

Intel Atom Z2420

Intel Celeron 947UE

Differences

Reasons to consider the Intel Atom Z2420

2x more L2 cache, more data can be stored in the L2 cache for quick access later
5.7x lower typical power consumption: 3 Watt vs 17 Watt

L2 cache	512 KB (per core) vs 256 KB (per core)
Thermal Design Power (TDP)	3 Watt vs 17 Watt

Reasons to consider the Intel Celeron 947UE

Around 17% higher clock speed: 1.4 GHz vs 1.20 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm

Maximum frequency	1.4 GHz vs 1.20 GHz
Manufacturing process technology	22 nm vs 32 nm

Compare specifications (specs)

	Intel Atom Z2420	Intel Celeron 947UE
Essentials
Architecture codename	Penwell	Ivy Bridge
Launch date	January 2013	January 2013
Place in performance rating	not rated	not rated
Processor Number	Z2420
Series	Intel® Atom™ Processor Z Series
Status	Discontinued
Vertical segment	Mobile	Laptop
Performance
Die size	65 mm	118 mm
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	512 KB (per core)	256 KB (per core)
Manufacturing process technology	32 nm	22 nm
Maximum core temperature	90 °C
Maximum frequency	1.20 GHz	1.4 GHz
Number of cores	1	1
Number of threads	2
Transistor count	140 million	1400 million
VID voltage range	0.3 - 1.2V
64 bit support
L3 cache		1024 KB
Maximum case temperature (TCase)		105 °C
Memory
Max memory channels	2
Maximum memory bandwidth	6.4 GB/s
Maximum memory size	1 GB
Supported memory types	LPDDR2 800	DDR3
Graphics
Graphics base frequency	400 MHz
Processor graphics	Integrated
Graphics interfaces
Number of displays supported	2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	12mm x 12mm
Sockets supported	Intel BGA 617	Intel BGA1023
Thermal Design Power (TDP)	3 Watt	17 Watt
Peripherals
Number of USB ports	1
UART
USB revision	2.0 OTG
Security & Reliability
Execute Disable Bit (EDB)
Advanced Technologies
Enhanced Intel SpeedStep® technology
General-Purpose Input/Output (GPIO)
Idle States
Instruction set extensions	Intel® SSE, Intel® SSE2, Intel® SSE3
Intel® Hyper-Threading technology
Physical Address Extensions (PAE)	32-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)