AMD Phenom II X4 955 (95W) vs Intel Atom Z550

Comparative analysis of AMD Phenom II X4 955 (95W) and Intel Atom Z550 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Phenom II X4 955 (95W)

Intel Atom Z550

Differences

Reasons to consider the AMD Phenom II X4 955 (95W)

3 more cores, run more applications at once: 4 vs 1
Around 60% higher clock speed: 3.2 GHz vs 2 GHz
8x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later

Number of cores	4 vs 1
Maximum frequency	3.2 GHz vs 2 GHz
L1 cache	128 KB (per core) vs 64 KB (per core)
L2 cache	512 KB (per core) vs 512 KB (per core)

Reasons to consider the Intel Atom Z550

47.5x lower typical power consumption: 2.4 Watt vs 95 Watt

Thermal Design Power (TDP)	2.4 Watt vs 95 Watt

Compare benchmarks

CPU 1: AMD Phenom II X4 955 (95W)
CPU 2: Intel Atom Z550

Name	AMD Phenom II X4 955 (95W)	Intel Atom Z550
PassMark - Single thread mark		0
PassMark - CPU mark		381

Compare specifications (specs)

	AMD Phenom II X4 955 (95W)	Intel Atom Z550
Essentials
Architecture codename	Deneb	Silverthorne
Launch date	April 2009	April 2009
Place in performance rating	not rated	3337
Vertical segment	Desktop	Mobile
Processor Number		Z550
Series		Legacy Intel Atom® Processors
Status		Discontinued
Performance
64 bit support
Die size	258 mm	26 mm2
L1 cache	128 KB (per core)	64 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
L3 cache	6144 KB (shared)
Manufacturing process technology	45 nm	45 nm
Maximum frequency	3.2 GHz	2 GHz
Number of cores	4	1
Transistor count	758 million	47 million
Base frequency		2.00 GHz
Bus Speed		533 MHz FSB
Maximum core temperature		90°C
Memory
Supported memory types	DDR3
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	AM3	PBGA441
Thermal Design Power (TDP)	95 Watt	2.4 Watt
Low Halogen Options Available
Package Size		13mm x 14mm
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)