Phenom II X4 955 (125W) vs Atom N450

Primary details

Comparing Atom N450 and Phenom II X4 955 (125W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3349	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Atom	no data
Power efficiency	2.05	no data
Architecture codename	Pinetrail (2009−2011)	Deneb (2009−2011)
Release date	21 December 2009 (15 years ago)	1 April 2009 (15 years ago)
Launch price (MSRP)	$64	no data

Detailed specifications

Atom N450 and Phenom II X4 955 (125W) basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	1 (Single-Core)	4 (Quad-Core)
Threads	2	4
Base clock speed	1.66 GHz	3.2 GHz
Boost clock speed	1.67 GHz	3.2 GHz
Bus rate	533 MHz	no data
L1 cache	56 KB (per core)	128 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
L3 cache	0 KB	6 MB (shared)
Chip lithography	45 nm	45 nm
Die size	66 mm2	258 mm2
Maximum core temperature	100 °C	no data
Number of transistors	123 million	758 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Atom N450 and Phenom II X4 955 (125W) compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA559	AM3
Power consumption (TDP)	5.5 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom N450 and Phenom II X4 955 (125W). You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data

Security technologies

Atom N450 and Phenom II X4 955 (125W) technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom N450 and Phenom II X4 955 (125W) are enumerated here.

AMD-V	-	+
VT-d	-	no data
VT-x	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom N450 and Phenom II X4 955 (125W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR3
Maximum memory size	2 GB	no data
Max memory channels	1	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Atom N450 and Phenom II X4 955 (125W).

PCIe version

no data

2.0

Pros & cons summary

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Recency	21 December 2009	1 April 2009
Physical cores	1	4
Threads	2	4
Power consumption (TDP)	5 Watt	125 Watt

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Should you still have questions on choice between Atom N450 and Phenom II X4 955 (125W), ask them in Comments section, and we shall answer.

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