Athlon 300U vs Celeron 450

Primary details

Comparing Celeron 450 and Athlon 300U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	1659
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	AMD Athlon
Architecture codename	Conroe-L (2007−2008)	Raven Ridge 2 (2019)
Release date	August 2008 (15 years ago)	6 January 2019 (5 years ago)
Current price	$8.97	$486

Detailed specifications

Celeron 450 and Athlon 300U 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)	2 (Dual-core)
Threads	1	4
Base clock speed	2.2 GHz	2.4 GHz
Boost clock speed	2.2 GHz	3.3 GHz
L1 cache	64 KB	128K (per core)
L2 cache	512 KB	512K (per core)
L3 cache	0 KB	4 MB (shared)
Chip lithography	65 nm	14 nm
Die size	77 mm2	209.78 mm2
Maximum core temperature	60 °C	no data
Number of transistors	105 million	4500 Million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No
VID voltage range	1V-1.3375V	no data

Compatibility

Information on Celeron 450 and Athlon 300U 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 (Uniprocessor)
Socket	LGA775	FP5
Power consumption (TDP)	35 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 450 and Athlon 300U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	XFR, FMA3, SSE 4.2, AVX2, SMT
AES-NI	-	+
AVX	no data	+
Enhanced SpeedStep (EIST)	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Celeron 450 and Athlon 300U 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 Celeron 450 and Athlon 300U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 450 and Athlon 300U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR4 Dual-channel
Maximum memory size	no data	64 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	38.397 GB/s
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon RX Vega 3

Peripherals

Specifications and connection of peripherals supported by Celeron 450 and Athlon 300U.

PCIe version	no data	3.0
PCI Express lanes	no data	12

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	2
Threads	1	4
Chip lithography	65 nm	14 nm
Power consumption (TDP)	35 Watt	15 Watt

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Should you still have questions on choice between Celeron 450 and Athlon 300U, ask them in Comments section, and we shall answer.

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