Intel Atom Z625 vs Intel Core i5-655K

Comparative analysis of Intel Atom Z625 and Intel Core i5-655K 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, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Atom Z625

Intel Core i5-655K

Differences

Reasons to consider the Intel Atom Z625

36.5x lower typical power consumption: 2.2 Watt vs 73 Watt

Thermal Design Power (TDP)	2.2 Watt vs 73 Watt

Reasons to consider the Intel Core i5-655K

Processor is unlocked, an unlocked multiplier allows for easier overclocking
1 more cores, run more applications at once: 2 vs 1
2 more threads: 4 vs 2
Around 82% higher clock speed: 3.46 GHz vs 1.9 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
8.2x more maximum memory size: 16.38 GB vs 2 GB

Unlocked	Unlocked vs Locked
Number of cores	2 vs 1
Number of threads	4 vs 2
Maximum frequency	3.46 GHz vs 1.9 GHz
Manufacturing process technology	32 nm vs 45 nm
L1 cache	64 KB (per core) vs 64 KB (per core)
Maximum memory size	16.38 GB vs 2 GB

Compare benchmarks

CPU 1: Intel Atom Z625
CPU 2: Intel Core i5-655K

Name	Intel Atom Z625	Intel Core i5-655K
PassMark - Single thread mark		1446
PassMark - CPU mark		2017
Geekbench 4 - Single Core		2510
Geekbench 4 - Multi-Core		4869

Compare specifications (specs)

	Intel Atom Z625	Intel Core i5-655K
Essentials
Architecture codename	Lincroft	Clarkdale
Launch date	May 2010	May 2010
Place in performance rating	not rated	1216
Processor Number	Z625	i5-655K
Series	Legacy Intel Atom® Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Desktop
Price now		$59.99
Value for money (0-100)		16.69
Performance
Base frequency	1.90 GHz	3.20 GHz
Bus Speed	400 MHz DMI	2.5 GT/s DMI
Die size	65 mm	81 mm2
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	0 to +90°C	72.6°C
Maximum frequency	1.9 GHz	3.46 GHz
Number of cores	1	2
Number of threads	2	4
Transistor count	140 million	382 million
VID voltage range	0.7625V – 1.1V	0.6500V-1.4000V
64 bit support
L3 cache		4096 KB (shared)
Unlocked
Memory
Max memory channels	1	2
Maximum memory bandwidth	3.2 GB/s	21 GB/s
Maximum memory size	2 GB	16.38 GB
Supported memory types	DDR2 800	DDR3 1066/1333
Graphics
Graphics base frequency	400 MHz	733 MHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Processor graphics	Integrated	Intel HD Graphics
Graphics interfaces
LVDS
MIPI
Number of displays supported		2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	13.8mmx13.8mmx1.1mm	37.5mm x 37.5mm
Sockets supported	Intel BGA 518	FCLGA1156
Thermal Design Power (TDP)	2.2 Watt	73 Watt
Peripherals
Integrated IDE
Integrated LAN
Max number of PCIe lanes	0	16
Number of USB ports	4
PCI Express revision	No	2.0
PCI support
PCIe configurations	None	1x16, 2x8
Total number of SATA ports	0
UART
USB revision	2.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
General-Purpose Input/Output (GPIO)
HD Audio
I/O Acceleration
Idle States
Instruction set extensions	Intel® SSE, Intel® SSE2, Intel® SSE3, Intel® SSSE3	Intel® SSE4.2
Intel 64
Intel® AC97 Technology
Intel® Active Management technology (AMT)
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® ME Firmware Version	No
Intel® Turbo Boost technology
Matrix Storage
Physical Address Extensions (PAE)	32-bit	36-bit
Quick Resume
Quiet System
Thermal Monitoring
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)