Core i5-11600KF vs Core i9-9820X

Primary Details

Comparing Core i9-9820X and Core i5-11600KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	528	540
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	15.86	52.94
Market segment	Desktop processor	Desktop processor
Series	Intel Core i9	no data
Architecture codename	Skylake (server) (2017−2019)	Rocket Lake (2021)
Release date	19 October 2018 (5 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	$898	no data
Current price	$385 (0.4x MSRP)	$180

Cost-Effectiveness Evaluation

Performance per price, higher is better.

i5-11600KF has 234% better value for money than i9-9820X.

Detailed Specifications

Core i9-9820X and Core i5-11600KF 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)	6 (Hexa-Core)
Threads	20	12
Base clock speed	3.3 GHz	3.9 GHz
Boost clock speed	4.2 GHz	4.9 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)	12 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	Yes

Compatibility

Information on Core i9-9820X and Core i5-11600KF 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	FCLGA1200
Power consumption (TDP)	165 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9820X and Core i5-11600KF. 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, Intel® AVX-512
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	no data	+
Thermal Monitoring	no data	+
SIPP	no data	-
Turbo Boost Max 3.0	+	-
Status	Discontinued	Discontinued

Security technologies

Core i9-9820X and Core i5-11600KF 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	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9820X and Core i5-11600KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9820X and Core i5-11600KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-3200
Maximum memory size	128 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	85 GB/s	50 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9820X and Core i5-11600KF.

PCIe version	3.0	4.0
PCI Express lanes	44	20

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 i5-11600KF by 2% based on our aggregated benchmark results.

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Pros & Cons Summary

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Performance score	12.76	12.52
Recency	19 October 2018	16 March 2021
Physical cores	10	6
Threads	20	12
Power consumption (TDP)	165 Watt	125 Watt

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Should you still have questions on choice between Core i9-9820X and Core i5-11600KF, ask them in Comments section, and we shall answer.

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