Xeon w7-3455 vs Celeron 420

Primary details

Comparing Celeron 420 and Xeon w7-3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	85
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Architecture codename	Conroe-L (2007−2008)	Sapphire Rapids
Release date	June 2007 (17 years ago)	1 January 2023 (1 year ago)
Launch price (MSRP)	$23	no data
Current price	$34 (1.5x MSRP)	no data

Detailed specifications

Celeron 420 and Xeon w7-3455 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)	24 (Tetracosa-Core)
Threads	1	48
Base clock speed	1.6 GHz	2.5 GHz
Boost clock speed	1.6 GHz	4.8 GHz
L1 cache	64 KB	80K (per core)
L2 cache	512 KB	2 MB (per core)
L3 cache	0 KB	67.5 MB
Chip lithography	65 nm	Intel 7 nm
Die size	77 mm2	4x 477 mm2
Maximum core temperature	60 °C	72 °C
Maximum case temperature (TCase)	60 °C	72 °C
Number of transistors	105 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	1V-1.3375V	no data

Compatibility

Information on Celeron 420 and Xeon w7-3455 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	LGA775	FCLGA4677
Power consumption (TDP)	35 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 420 and Xeon w7-3455. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	-	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	+
FSB parity	-	no data
Status	Discontinued	Launched

Security technologies

Celeron 420 and Xeon w7-3455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 420 and Xeon w7-3455 are enumerated here.

VT-d	-	+
VT-x	-	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 420 and Xeon w7-3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5-4800
Maximum memory size	no data	4 TB
Max memory channels	no data	8
ECC memory support	no data	+

Peripherals

Specifications and connection of peripherals supported by Celeron 420 and Xeon w7-3455.

PCIe version	no data	5.0
PCI Express lanes	no data	112

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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Physical cores	1	24
Threads	1	48
Power consumption (TDP)	35 Watt	270 Watt

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Should you still have questions on choice between Celeron 420 and Xeon w7-3455, ask them in Comments section, and we shall answer.

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