Core i5-10400F vs Core i7-7800X

General info

Comparing Core i7-7800X and Core i5-10400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	822	816
Place by popularity	not in top-100	10
Value for money	5.52	39.22
Market segment	Desktop processor	Desktop processor
Series	Intel Core i7	no data
Architecture codename	Skylake (server) (2017−2019)	Comet Lake (2020)
Release date	26 June 2017 (6 years old)	30 April 2020 (3 years old)
Launch price (MSRP)	$389	$155
Current price	$395 (1x MSRP)	$130 (0.8x MSRP)

Value for money

Performance per price, higher is better.

i5-10400F has 611% better value for money than i7-7800X.

Technical specs

Core i7-7800X and Core i5-10400F 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)	6 (Hexa-Core)
Threads	12	12
Base clock speed	3.5 GHz	2.9 GHz
Boost clock speed	4 GHz	4.3 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	8.25 MB (shared)	12 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °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 i7-7800X and Core i5-10400F 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)	140 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7800X and Core i5-10400F. 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)	+	+
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	no data	-
Status	Discontinued	Launched

Security technologies

Core i7-7800X and Core i5-10400F 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 i7-7800X and Core i5-10400F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7800X and Core i5-10400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR4
Maximum memory size	128 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	77 GB/s	41.6 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 i7-7800X and Core i5-10400F.

PCIe version	3.0	3.0
PCI Express lanes	28	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 i5-10400F outperforms Core i7-7800X by 1% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	8.41	8.51
Recency	26 June 2017	30 April 2020
Cost	$389	$155
Power consumption (TDP)	140 Watt	65 Watt

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Should you still have questions on choice between Core i7-7800X and Core i5-10400F, ask them in Comments section, and we shall answer.

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