Athlon II X4 645 vs Celeron J4005

Primary details

Comparing Celeron J4005 and Athlon II X4 645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2466	2146
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.08	3.30
Market segment	Desktop processor	Desktop processor
Series	Intel Celeron	no data
Power efficiency	9.21	1.47
Architecture codename	Goldmont Plus (2017)	Propus (2009−2011)
Release date	11 December 2017 (6 years ago)	21 September 2010 (14 years ago)
Launch price (MSRP)	$107	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon II X4 645 has 206% better value for money than Celeron J4005.

Detailed specifications

Celeron J4005 and Athlon II X4 645 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	2 GHz	3.1 GHz
Boost clock speed	2.7 GHz	3.1 GHz
Multiplier	20	no data
L1 cache	112 KB	128 KB (per core)
L2 cache	4 MB (shared)	512 KB (per core)
L3 cache	4 MB	0 KB
Chip lithography	14 nm	45 nm
Die size	93 mm2	169 mm2
Maximum core temperature	105 °C	no data
Number of transistors	no data	300 million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Celeron J4005 and Athlon II X4 645 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	FCBGA1090	AM3
Power consumption (TDP)	10 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron J4005 and Athlon II X4 645. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	-
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	-	no data
GPIO	+	no data
Turbo Boost Max 3.0	-	no data

Security technologies

Celeron J4005 and Athlon II X4 645 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	no data
Secure Key	+	no data
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron J4005 and Athlon II X4 645 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron J4005 and Athlon II X4 645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 600	no data
Max video memory	8 GB	no data
Quick Sync Video	+	-
Graphics max frequency	700 MHz	no data
Execution Units	12	no data

Graphics interfaces

Available interfaces and connections of Celeron J4005 and Athlon II X4 645 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
MIPI-DSI	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron J4005 and Athlon II X4 645 integrated GPUs, including resolutions over different interfaces.

4K resolution support

+

no data

Graphics API support

APIs supported by Celeron J4005 and Athlon II X4 645 integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.4	no data

Peripherals

Specifications and connection of peripherals supported by Celeron J4005 and Athlon II X4 645.

PCIe version	2.0	2.0
PCI Express lanes	6	no data
USB revision	2.0/3.0	no data
Total number of SATA ports	2	no data
Max number of SATA 6 Gb/s Ports	2	no data
Number of USB ports	8	no data
Integrated LAN	-	no data
UART	+	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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	1.01	1.53
Recency	11 December 2017	21 September 2010
Physical cores	2	4
Threads	2	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	10 Watt	95 Watt

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Should you still have questions on choice between Celeron J4005 and Athlon II X4 645, ask them in Comments section, and we shall answer.

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