Core i9-11900F vs Core i5-11400F

General info

Comparing Core i5-11400F and Core i9-11900F processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	637	445
Place by popularity	23	not in top-100
Value for money	66.15	53.92
Market segment	Desktop processor	Desktop processor
Architecture codename	Rocket Lake (2021)	Rocket Lake (2021)
Release date	16 March 2021 (3 years ago)	16 March 2021 (3 years ago)
Launch price (MSRP)	$157	no data
Current price	$121 (0.8x MSRP)	$210

Value for money

Performance per price, higher is better.

i5-11400F has 23% better value for money than i9-11900F.

Technical specs

Core i5-11400F and Core i9-11900F 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)	8 (Octa-Core)
Threads	12	16
Base clock speed	2.6 GHz	2.5 GHz
Boost clock speed	4.4 GHz	5.1 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	12 MB (shared)	16 MB (shared)
Chip lithography	14 nm	14 nm
Die size	276 mm2	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	No

Compatibility

Information on Core i5-11400F and Core i9-11900F 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	FCLGA1200
Power consumption (TDP)	65 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-11400F and Core i9-11900F. 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	+	+
FMA	+	no data
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
SIPP	-	-
Turbo Boost Max 3.0	-	+
Status	Discontinued	Discontinued

Security technologies

Core i5-11400F and Core i9-11900F technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
Identity Protection	+	+
SGX	-	-
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-11400F and Core i9-11900F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-11400F and Core i9-11900F. Depending on the motherboard, higher memory frequencies may be supported.

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

Peripherals

Specifications and connection of peripherals supported by Core i5-11400F and Core i9-11900F.

PCIe version	4.0	4.0
PCI Express lanes	20	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 i9-11900F outperforms Core i5-11400F by 32% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	10.96	14.47
Physical cores	6	8
Threads	12	16

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Should you still have questions on choice between Core i5-11400F and Core i9-11900F, ask them in Comments section, and we shall answer.

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