Celeron 3865U vs A6-7400K

Primary details

Comparing A6-7400K and Celeron 3865U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2338	2473
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Celeron
Architecture codename	Kaveri (2014−2015)	Kaby Lake-U
Release date	31 July 2014 (9 years ago)	3 January 2017 (7 years ago)
Launch price (MSRP)	no data	$107
Current price	$59	$296 (2.8x MSRP)

Detailed specifications

A6-7400K and Celeron 3865U 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	3.5 GHz	1.8 GHz
Boost clock speed	3.9 GHz	1.8 GHz
L1 cache	128 KB	64K (per core)
L2 cache	1024 KB	256K (per core)
L3 cache	no data	2 MB (shared)
Chip lithography	28 nm	14 nm
Die size	245 mm2	98.7 mm2
Maximum core temperature	70 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	2,411 million	no data
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	Yes	No

Compatibility

Information on A6-7400K and Celeron 3865U 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	FM2+	FCBGA1356,FPBGA1356
Power consumption (TDP)	65 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A6-7400K and Celeron 3865U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
FMA	+	no data
AVX	+	+
FRTC	1	no data
FreeSync	1	no data
PowerTune	-	no data
TrueAudio	+	no data
PowerNow	+	no data
PowerGating	+	no data
Out-of-band client management	+	no data
VirusProtect	+	no data
HSA	1	no data
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
Speed Shift	no data	+
My WiFi	no data	+
Turbo Boost Technology	no data	-
Hyper-Threading Technology	no data	+
TSX	no data	-
Idle States	no data	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	+
SIPP	no data	-
Smart Response	no data	+
Status	no data	Discontinued

Security technologies

A6-7400K and Celeron 3865U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by A6-7400K and Celeron 3865U are enumerated here.

AMD-V	+	+
VT-d	no data	+
VT-x	no data	+
EPT	no data	+
IOMMU 2.0	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by A6-7400K and Celeron 3865U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1866	DDR3, DDR4
Maximum memory size	no data	32 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	34.1 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	AMD Radeon R5 Graphics	Intel HD Graphics 610
iGPU core count	4	no data
Number of pipelines	256	no data
Max video memory	no data	32 GB
Quick Sync Video	no data	+
Clear Video	no data	+
Clear Video HD	no data	+
Enduro	+	no data
Switchable graphics	1	no data
UVD	+	no data
VCE	+	no data
Graphics max frequency	no data	900 MHz

Graphics interfaces

Available interfaces and connections of A6-7400K and Celeron 3865U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by A6-7400K and Celeron 3865U 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

Graphics API support

APIs supported by A6-7400K and Celeron 3865U integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	12
OpenGL	no data	4.4
Vulkan	1	no data

Peripherals

Specifications and connection of peripherals supported by A6-7400K and Celeron 3865U.

PCIe version	3.0	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.

A6-7400K outperforms Celeron 3865U by 24% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.05	0.85
Recency	31 July 2014	3 January 2017
Chip lithography	28 nm	14 nm
Power consumption (TDP)	65 Watt	15 Watt

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Should you still have questions on choice between A6-7400K and Celeron 3865U, ask them in Comments section, and we shall answer.

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