Core i5-10400H vs Core i9-9820X

Primary details

Comparing Core i9-9820X and Core i5-10400H processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	529	1066
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	15.76	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i9	Intel Comet Lake
Architecture codename	Skylake (server) (2017−2019)	Comet Lake-H (2020)
Release date	19 October 2018 (5 years ago)	2 April 2020 (4 years ago)
Launch price (MSRP)	$898	no data
Current price	$385 (0.4x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9820X and Core i5-10400H 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	10 (Deca-Core)	4 (Quad-Core)
Threads	20	8
Base clock speed	3.3 GHz	2.6 GHz
Boost clock speed	4.2 GHz	4.6 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64 KB (per core)	64K (per core)
L2 cache	1 MB (per core)	256K (per core)
L3 cache	16.5 MB (shared)	6 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	92 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	Yes	No

Compatibility

Information on Core i9-9820X and Core i5-10400H 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	FCLGA2066	FCBGA1440
Power consumption (TDP)	165 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9820X and Core i5-10400H. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	no data	+
Flex Memory Access	no data	+
SIPP	no data	+
Turbo Boost Max 3.0	+	-
Status	Discontinued	Discontinued

Security technologies

Core i9-9820X and Core i5-10400H technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9820X and Core i5-10400H are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9820X and Core i5-10400H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4
Maximum memory size	128 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	85 GB/s	45.8 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel® UHD Graphics for 10th Gen Intel® Processors
Quick Sync Video	no data	+
Graphics max frequency	no data	1.1 GHz

Graphics interfaces

Available interfaces and connections of Core i9-9820X and Core i5-10400H integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i9-9820X and Core i5-10400H integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Core i9-9820X and Core i5-10400H integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core i9-9820X and Core i5-10400H.

PCIe version	3.0	3.0
PCI Express lanes	44	16

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.

Core i9-9820X outperforms Core i5-10400H by 136% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	12.96	5.48
Recency	19 October 2018	2 April 2020
Physical cores	10	4
Threads	20	8
Power consumption (TDP)	165 Watt	45 Watt

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Should you still have questions on choice between Core i9-9820X and Core i5-10400H, ask them in Comments section, and we shall answer.

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