i9-14900F vs i9-7940X

VS

Aggregate performance score

Core i9-7940X
2017
14 cores / 28 threads, 165 Watt
16.34
Core i9-14900F
2024
24 cores / 32 threads, 65 Watt
29.50
+80.5%

Core i9-14900F outperforms Core i9-7940X by an impressive 81% based on our aggregate benchmark results.

Primary details

Comparing Core i9-7940X and Core i9-14900F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking408145
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.3050.70
Market segmentDesktop processorDesktop processor
SeriesIntel Core i9no data
Power efficiency9.3742.95
Architecture codenameSkylake (server) (2017−2018)Raptor Lake-R (2023−2024)
Release date30 May 2017 (7 years ago)8 January 2024 (less than a year ago)
Launch price (MSRP)$1,399$524

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-14900F has 1436% better value for money than i9-7940X.

Detailed specifications

Core i9-7940X and Core i9-14900F 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 cores14 (Tetradeca-Core)24 (Tetracosa-Core)
Threads2832
Base clock speed3.1 GHz2 GHz
Boost clock speed4.4 GHz5.6 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
L1 cache896 KB80 KB (per core)
L2 cache14 MB2 MB (per core)
L3 cache19.25 MB (shared)36 MB (shared)
Chip lithography14 nmIntel 7 nm
Die size484 mm2257 mm2
Maximum core temperature102 °C100 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-7940X and Core i9-14900F 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)165 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7940X and Core i9-14900F. 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++
Deep Learning Boost-+

Security technologies

Core i9-7940X and Core i9-14900F 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 i9-7940X and Core i9-14900F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-7940X and Core i9-14900F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5-5600, DDR4-3200
Maximum memory size128 GB192 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s89.6 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 i9-7940X and Core i9-14900F.

PCIe version3.05.0 and 4.0
PCI Express lanes4416

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.

i9-7940X 16.34
i9-14900F 29.50
+80.5%

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.

i9-7940X 25963
i9-14900F 46860
+80.5%

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.

i9-7940X 1453
i9-14900F 2870
+97.5%

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.

i9-7940X 10604
i9-14900F 18367
+73.2%

Gaming performance

Pros & cons summary


Performance score 16.34 29.50
Recency 30 May 2017 8 January 2024
Physical cores 14 24
Threads 28 32
Power consumption (TDP) 165 Watt 65 Watt

i9-14900F has a 80.5% higher aggregate performance score, an age advantage of 6 years, 71.4% more physical cores and 14.3% more threads, and 153.8% lower power consumption.

The Core i9-14900F is our recommended choice as it beats the Core i9-7940X in performance tests.


Should you still have questions on choice between Core i9-7940X and Core i9-14900F, ask them in Comments section, and we shall answer.

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Intel Core i9-7940X
Core i9-7940X
Intel Core i9-14900F
Core i9-14900F

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Community ratings

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Questions & comments

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