i5-14400F vs i7-7820X

Aggregate performance score

Core i7-7820X
2017
8 cores / 16 threads, 140 Watt
11.22
Core i5-14400F
2024
10 cores / 16 threads, 65 Watt
16.83
+50%

Core i5-14400F outperforms Core i7-7820X by an impressive 50% based on our aggregate benchmark results.

Primary details

Comparing Core i7-7820X and Core i5-14400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking711403
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.5459.51
Market segmentDesktop processorDesktop processor
SeriesIntel Core i7no data
Power efficiency7.3123.61
Architecture codenameSkylake (server) (2017−2019)Raptor Lake-R (2023−2024)
Release date30 May 2017 (7 years ago)8 January 2024 (less than a year ago)
Launch price (MSRP)$599$196

Cost-effectiveness evaluation

Performance per price, higher is better.

i5-14400F has 1581% better value for money than i7-7820X.

Detailed specifications

Core i7-7820X and Core i5-14400F 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 cores8 (Octa-Core)10 (Deca-Core)
Threads1616
Base clock speed3.6 GHz2.5 GHz
Boost clock speed4.5 GHz4.7 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplier36no data
L1 cache512 KB80 KB (per core)
L2 cache8 MB1.25 MB (per core)
L3 cache11 MB (shared)20 MB (shared)
Chip lithography14 nmIntel 7 nm
Die sizeno data215 mm2
Maximum core temperature99 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i7-7820X and Core i5-14400F 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 configuration1 (Uniprocessor)1
SocketFCLGA2066FCLGA1700
Power consumption (TDP)140 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-7820X and Core i5-14400F. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX++
Idle Statesno data+
Thermal Monitoring-+
Turbo Boost Max 3.0+no data
Deep Learning Boost-+

Security technologies

Core i7-7820X and Core i5-14400F technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB++
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-7820X and Core i5-14400F are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-7820X and Core i5-14400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5-4800, DDR4-3200
Maximum memory size128 GB192 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s76.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AN/A

Peripherals

Specifications and connection of peripherals supported by Core i7-7820X and Core i5-14400F.

PCIe version3.05.0 and 4.0
PCI Express lanes2816

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


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.

i7-7820X 11.22
i5-14400F 16.83
+50%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-7820X 17165
i5-14400F 25753
+50%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-7820X 1429
i5-14400F 2337
+63.5%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-7820X 7874
i5-14400F 11496
+46%

Gaming performance

Pros & cons summary


Performance score 11.22 16.83
Recency 30 May 2017 8 January 2024
Physical cores 8 10
Power consumption (TDP) 140 Watt 65 Watt

i5-14400F has a 50% higher aggregate performance score, an age advantage of 6 years, 25% more physical cores, and 115.4% lower power consumption.

The Core i5-14400F is our recommended choice as it beats the Core i7-7820X in performance tests.


Should you still have questions on choice between Core i7-7820X and Core i5-14400F, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core i7-7820X
Core i7-7820X
Intel Core i5-14400F
Core i5-14400F

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Community ratings

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Questions & comments

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