Celeron J1800 vs Pentium G645

Primary details

Comparing Pentium G645 and Celeron J1800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2549	3051
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Celeron
Power efficiency	1.31	3.41
Architecture codename	Sandy Bridge (2011−2013)	Bay Trail-D (2013)
Release date	2 September 2012 (12 years ago)	1 November 2013 (11 years ago)
Launch price (MSRP)	$80	$72

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium G645 and Celeron J1800 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)	2 (Dual-core)
Threads	2	2
Base clock speed	2.9 GHz	2.41 GHz
Boost clock speed	2.9 GHz	2.58 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	112 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	3 MB (shared)	1 MB L2 Cache
Chip lithography	32 nm	22 nm
Die size	131 mm2	no data
Maximum core temperature	69 °C	105 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium G645 and Celeron J1800 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	FCLGA1155	FCBGA1170
Power consumption (TDP)	65 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and Celeron J1800. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	no data	36 Bit
FDI	+	-
Fast Memory Access	+	no data
RST	no data	-

Security technologies

Pentium G645 and Celeron J1800 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G645 and Celeron J1800 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G645 and Celeron J1800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	17 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for 2nd Generation Intel Processors	Intel HD Graphics for Intel Atom Processor Z3700 Series
Quick Sync Video	-	+
Graphics max frequency	1.1 GHz	792 MHz
InTru 3D	-	-

Graphics interfaces

Available interfaces and connections of Pentium G645 and Celeron J1800 integrated GPUs.

Number of displays supported

2

2

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and Celeron J1800.

PCIe version	2.0	2.0
PCI Express lanes	no data	4

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	0.90	0.36
Recency	2 September 2012	1 November 2013
Chip lithography	32 nm	22 nm
Power consumption (TDP)	65 Watt	10 Watt

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Should you still have questions on choice between Pentium G645 and Celeron J1800, ask them in Comments section, and we shall answer.

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