Celeron 3855U vs 1005M

General info

Comparing Celeron 1005M and Celeron 3855U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2554	2448
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Celeron
Architecture codename	Ivy Bridge (2012−2013)	Skylake (2015−2016)
Release date	1 July 2013 (10 years old)	15 August 2015 (8 years old)
Launch price (MSRP)	$86	$107
Current price	$36 (0.4x MSRP)	$315 (2.9x MSRP)

Technical specs

Celeron 1005M and Celeron 3855U 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	1.9 GHz	1.6 GHz
Boost clock speed	1.9 GHz	1.6 GHz
Bus support	no data	4 GT/s
L1 cache	128 KB	128 KB
L2 cache	512 KB	512 KB
L3 cache	2 MB	2 MB
Chip lithography	22 nm	14 nm
Die size	94 mm2	98.57 mm210.3 mm × 9.57 mm
Maximum core temperature	105 °C	100 °C
Number of transistors	no data	1750 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Celeron 1005M and Celeron 3855U 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	FCPGA988	FCBGA1356
Power consumption (TDP)	35 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 1005M and Celeron 3855U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	-	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	-	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
TSX	no data	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	no data	-
Smart Response	no data	+
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	Discontinued

Security technologies

Celeron 1005M and Celeron 3855U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 1005M and Celeron 3855U are enumerated here.

VT-d	-	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 1005M and Celeron 3855U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-1866, DDR4-2133, LPDDR3-1600, LPDDR3-1866, DDR3L-1333, DDR3L-1600
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	34.1 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 3rd Generation Intel® Processors	Intel HD Graphics 510
Max video memory	no data	32 GB
Quick Sync Video	-	+
Clear Video HD	-	+
Graphics max frequency	1 GHz	900 MHz

Graphics interfaces

Available interfaces and connections of Celeron 1005M and Celeron 3855U integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	no data	+
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron 1005M and Celeron 3855U integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2304@24Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz
Max resolution over VGA	no data	N/A

Graphics API support

APIs supported by Celeron 1005M and Celeron 3855U integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Celeron 1005M and Celeron 3855U.

PCIe version	2.0	2.0
PCI Express lanes	16	10

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.

3855U outperforms 1005M by 15% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	0.72	0.83
Recency	1 July 2013	15 August 2015
Cost	$86	$107
Chip lithography	22 nm	14 nm
Power consumption (TDP)	35 Watt	15 Watt

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Should you still have questions on choice between Celeron 1005M and Celeron 3855U, ask them in Comments section, and we shall answer.

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