Ryzen 9 7945HX vs Celeron U3400

Primary details

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

Place in the ranking	3360	168
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	no data
Power efficiency	0.68	23.83
Designer	Intel	AMD
Manufacturer	no data	TSMC
Architecture codename	Westmere (2010−2011)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	24 May 2010 (15 years ago)	4 January 2023 (2 years ago)

Detailed specifications

Celeron U3400 and Ryzen 9 7945HX 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	2 (Dual-core)	16 (Hexadeca-Core)
Threads	2	32
Base clock speed	1.06 GHz	2.5 GHz
Boost clock speed	0.07 GHz	5.4 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	8	no data
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	1 MB (per core)
L3 cache	2 MB	64 MB (shared)
Chip lithography	32 nm	CCD = 5 nm, I/O = 6 nm
Die size	81 mm2	2x 71 mm2
Maximum core temperature	105 °C	100 °C
Number of transistors	382 Million	13,140 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Celeron U3400 and Ryzen 9 7945HX 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 (Uniprocessor)	1
Socket	BGA1288	FL1
Power consumption (TDP)	18 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron U3400 and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	-	+
FMA	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	36 Bit	no data
FDI	+	no data
Fast Memory Access	+	no data
Precision Boost 2	no data	+

Security technologies

Celeron U3400 and Ryzen 9 7945HX 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 U3400 and Ryzen 9 7945HX 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 Celeron U3400 and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800	DDR5
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	12.799 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare HD Graphics and Radeon 610M	Intel HD Graphics for Previous Generation Intel Processors	AMD Radeon 610M (400 - 2200 MHz)
Clear Video	+	no data
Graphics max frequency	500 MHz	no data

Graphics interfaces

Available interfaces and connections of Celeron U3400 and Ryzen 9 7945HX integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Celeron U3400 and Ryzen 9 7945HX.

PCIe version	2.0	5.0
PCI Express lanes	16	28

Synthetic benchmarks

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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Combined synthetic benchmark score

This is our combined benchmark performance rating.

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Pros & cons summary

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Performance score	0.29	30.85
Integrated graphics card	0.72	2.65
Recency	24 May 2010	4 January 2023
Physical cores	2	16
Threads	2	32
Power consumption (TDP)	18 Watt	55 Watt

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