A6-6420K vs i5-10400

Primary details

Comparing Core i5-10400 and A6-6420K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	957	2457
Place by popularity	88	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	11.11	1.44
Architecture codename	Comet Lake (2020)	Richland (2013−2014)
Release date	30 April 2020 (4 years ago)	January 2014 (10 years ago)

Detailed specifications

Core i5-10400 and A6-6420K 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	6 (Hexa-Core)	2 (Dual-core)
Threads	12	2
Base clock speed	2.9 GHz	4 GHz
Boost clock speed	4.3 GHz	4.2 GHz
Bus rate	8 GT/s	no data
L1 cache	64K (per core)	96 KB
L2 cache	256K (per core)	1024 KB
L3 cache	12 MB (shared)	no data
Chip lithography	14 nm	32 nm
Die size	no data	246 mm2
Maximum core temperature	100 °C	70 °C
Maximum case temperature (TCase)	72 °C	70 °C
Number of transistors	no data	1,303 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	-	+

Compatibility

Information on Core i5-10400 and A6-6420K 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	FCLGA1200	FM2
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-10400 and A6-6420K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
FMA	-	+
AVX	+	+
PowerNow	-	+
PowerGating	-	+
VirusProtect	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	-	no data

Security technologies

Core i5-10400 and A6-6420K technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-10400 and A6-6420K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-10400 and A6-6420K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR3-1866
Maximum memory size	128 GB	no data
Max memory channels	2	2
Maximum memory bandwidth	41.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 630	AMD Radeon HD 8470D
Number of pipelines	no data	192
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Enduro	-	+
Switchable graphics	-	+
UVD	-	+
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-10400 and A6-6420K integrated GPUs.

Number of displays supported	3	no data
DisplayPort	-	+
HDMI	-	+

Graphics image quality

Maximum display resolutions supported by Core i5-10400 and A6-6420K integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096 x 2160@30Hz	no data
Max resolution over eDP	4096 x 2304@60Hz	no data
Max resolution over DisplayPort	4096 x 2304@60Hz	no data

Graphics API support

APIs supported by Core i5-10400 and A6-6420K integrated GPUs, sometimes API versions are included.

DirectX	12	DirectX® 11
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-10400 and A6-6420K.

PCIe version	3.0	2.0
PCI Express lanes	16	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	7.92	1.03
Integrated graphics card	3.09	0.97
Physical cores	6	2
Threads	12	2
Chip lithography	14 nm	32 nm

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Should you still have questions on choice between Core i5-10400 and A6-6420K, ask them in Comments section, and we shall answer.

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