Intel Celeron B720 vs Intel Atom Z515

Comparative analysis of Intel Celeron B720 and Intel Atom Z515 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 Celeron B720

Intel Atom Z515

Differences

Reasons to consider the Intel Celeron B720

CPU is newer: launch date 2 year(s) 9 month(s) later
Around 42% higher clock speed: 1.7 GHz vs 1.2 GHz
Around 11% higher maximum core temperature: 100 °C vs 90°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
3.7x better performance in PassMark - CPU mark: 814 vs 218

Specifications (specs)
Launch date	1 January 2012 vs April 2009
Maximum frequency	1.7 GHz vs 1.2 GHz
Maximum core temperature	100 °C vs 90°C
Manufacturing process technology	32 nm vs 45 nm
Benchmarks
PassMark - CPU mark	814 vs 218

Reasons to consider the Intel Atom Z515

2x more L2 cache, more data can be stored in the L2 cache for quick access later
35x lower typical power consumption: 1.4 Watt vs 35 Watt

L2 cache	512 KB (per core) vs 256 KB (per core)
Thermal Design Power (TDP)	1.4 Watt vs 35 Watt

Compare benchmarks

CPU 1: Intel Celeron B720
CPU 2: Intel Atom Z515

PassMark - CPU mark

CPU 1

CPU 2

814

218

Name	Intel Celeron B720	Intel Atom Z515
PassMark - Single thread mark	0	0
PassMark - CPU mark	814	218

Compare specifications (specs)

	Intel Celeron B720	Intel Atom Z515
Essentials
Architecture codename	Sandy Bridge	Silverthorne
Launch date	1 January 2012	April 2009
Place in performance rating	3335	3342
Processor Number	B720	Z515
Series	Legacy Intel® Celeron® Processor	Legacy Intel Atom® Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.70 GHz	1.20 GHz
Bus Speed	5 GT/s DMI	400 MHz FSB
Die size	131 mm	26 mm2
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	1.5 MB
Manufacturing process technology	32 nm	45 nm
Maximum core temperature	100 °C	90°C
Maximum frequency	1.7 GHz	1.2 GHz
Number of cores	1	1
Number of threads	1
Transistor count	504 million	47 million
Memory
Max memory channels	2
Maximum memory bandwidth	21.3 GB/s
Maximum memory size	16 GB
Supported memory types	DDR3 1066/1333
Graphics
Graphics base frequency	650 MHz
Graphics max dynamic frequency	1.00 GHz
Graphics max frequency	1 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mmx37.5mm (rPGA988B)	13mm x 14mm
Sockets supported	PGA988	PBGA441
Thermal Design Power (TDP)	35 Watt	1.4 Watt
Peripherals
Max number of PCIe lanes	16
PCI Express revision	2.0
PCIe configurations	1x16, 2x8, 1x8 2x4
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)