i7-11700F vs i9-7940X

VS

Aggregate performance score

Core i9-7940X
2017
14 cores / 28 threads, 165 Watt
16.34
+23.7%
Core i7-11700F
2021
8 cores / 16 threads, 65 Watt
13.21

Core i9-7940X outperforms Core i7-11700F by a significant 24% based on our aggregate benchmark results.

Primary details

Comparing Core i9-7940X and Core i7-11700F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking408572
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.29no data
Market segmentDesktop processorDesktop processor
SeriesIntel Core i9no data
Power efficiency9.3719.22
Architecture codenameSkylake (server) (2017−2018)Rocket Lake (2021)
Release date1 September 2017 (7 years ago)16 March 2021 (3 years ago)
Launch price (MSRP)$1,399no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-7940X and Core i7-11700F 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)8 (Octa-Core)
Threads2816
Base clock speed3.1 GHz2.5 GHz
Boost clock speed4.4 GHz4.9 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s8 GT/s
L1 cache64 KB (per core)80K (per core)
L2 cache1 MB (per core)256K (per core)
L3 cache19.25 MB (shared)16 MB (shared)
Chip lithography14 nm14 nm
Die size484 mm2no data
Maximum core temperature102 °C100 °C
Maximum case temperature (TCase)no data72 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-7940X and Core i7-11700F 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
SocketFCLGA20661200
Power consumption (TDP)165 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7940X and Core i7-11700F. 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++
vProno data-
Enhanced SpeedStep (EIST)++
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 i7-11700F technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB++
Secure Keyno data+
Identity Protection-+
SGXno data-
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-7940X and Core i7-11700F 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 i7-11700F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR4-3200
Maximum memory size128 GB128 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s50 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/Ano data

Peripherals

Specifications and connection of peripherals supported by Core i9-7940X and Core i7-11700F.

PCIe version3.04.0
PCI Express lanes4420

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
+23.7%
i7-11700F 13.21

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
+23.8%
i7-11700F 20980

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
i7-11700F 2132
+46.7%

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
+22.1%
i7-11700F 8685

Gaming performance

Pros & cons summary


Performance score 16.34 13.21
Recency 1 September 2017 16 March 2021
Physical cores 14 8
Threads 28 16
Power consumption (TDP) 165 Watt 65 Watt

i9-7940X has a 23.7% higher aggregate performance score, and 75% more physical cores and 75% more threads.

i7-11700F, on the other hand, has an age advantage of 3 years, and 153.8% lower power consumption.

The Core i9-7940X is our recommended choice as it beats the Core i7-11700F in performance tests.


Should you still have questions on choice between Core i9-7940X and Core i7-11700F, ask them in Comments section, and we shall answer.

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Intel Core i9-7940X
Core i9-7940X
Intel Core i7-11700F
Core i7-11700F

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Community ratings

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Questions & comments

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