Celeron 900 vs 420

Primary details

Comparing Celeron 420 and Celeron 900 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Architecture codename	Conroe-L (2007−2008)	no data
Release date	June 2007 (17 years ago)	1 January 2009 (15 years ago)
Launch price (MSRP)	$23	no data

Detailed specifications

Celeron 420 and Celeron 900 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)	no data
Threads	1	no data
Base clock speed	1.6 GHz	2.2 GHz
Boost clock speed	1.6 GHz	no data
L1 cache	64 KB	no data
L2 cache	512 KB	no data
L3 cache	0 KB	1 MB L2 Cache
Chip lithography	65 nm	45 nm
Die size	77 mm2	no data
Maximum core temperature	no data	105 °C
Maximum case temperature (TCase)	60 °C	no data
Number of transistors	105 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1V-1.3375V	no data

Compatibility

Information on Celeron 420 and Celeron 900 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	no data
Socket	LGA775	PGA478
Power consumption (TDP)	35 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 420 and Celeron 900. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	-	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Celeron 420 and Celeron 900 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 420 and Celeron 900 are enumerated here.

VT-d	-	no data
VT-x	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 420 and Celeron 900. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Chip lithography

65 nm

45 nm

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Should you still have questions on choice between Celeron 420 and Celeron 900, ask them in Comments section, and we shall answer.

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