Intel Core i9-9940X

Intel Core i9-9940X
Benchmarks & Specs

Last updated:
The Intel Core i9-9940X, a processor from the HEDT series, is based on the Skylake X Refresh architecture. It was manufactured using the 14-nanometer process and was known for its pronounced multithreading capability. Especially for demanding applications that benefit from many computing cores, it offered strong performance.

We have seen how this processor played out its strengths in creative areas and workloads. A special feature was the generous L3 cache of 19 MB. This enabled very efficient data management, which significantly supported the processing speed. The maximum memory bandwidth of 85 GB/s was also remarkable and helped with data-intensive tasks.

The Intel Core i9-9940X uses PCIe 3.0, which was standard for its generation. Even though some years have passed since its introduction, this processor still offers a reliable foundation. For certain application areas where raw core performance counts, it can be quite convincing. It shows that well-thought-out technology remains relevant in the long term.
  • High multithreading performance
  • Large L3 cache of 19 MB
  • Suitable for data-intensive applications
  • Reliable basis for workloads

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 348 / 867
In segment Desktop
Multi-core performance
Rank 164 / 821
In segment Desktop
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Core i7-7700K
4C / 8T · 4.50 GHz
1,463
Intel Core i7-9700T
8C / 8T · 4.30 GHz
1,463
Intel Core i9-9940X
14C / 28T · 4.50 GHz
1,459
Intel Xeon E3-1535M v6
4C / 8T · 4.20 GHz
1,453
Intel Xeon E5-1660 v3
8C / 16T · 3.50 GHz
1,448
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core i5-13600T
14C / 20T · 3.60 GHz
10,911
Intel Xeon Gold 6154
18C / 36T · 3.20 GHz
10,879
Intel Core i9-9940X
14C / 28T · 4.20 GHz
10,820
Intel Xeon Gold 6226R
16C / 32T · 3.60 GHz
10,756
Intel Core i5-13490F
10C / 16T · 4.20 GHz
10,750
Cinebench R20 Single-Core

Cinebench R20 Single-Core
Single-core performance

Intel Core i3-10105
4C / 8T · 4.40 GHz
459 cb
Intel Core i9-9980XE
18C / 36T · 4.50 GHz
459 cb
Intel Core i9-9940X
14C / 28T · 4.50 GHz
457 cb
Intel Xeon E-2226GE
6C / 6T · 4.60 GHz
456 cb
Intel Core i9-9900X
10C / 20T · 4.50 GHz
455 cb
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

Intel Core i7-10700TE
8C / 16T · 4.40 GHz
1,177
Intel Core i3-7350K
2C / 4T · 4.20 GHz
1,176
Intel Core i9-9940X
14C / 28T · 4.50 GHz
1,174
Intel Core i5-10505
6C / 12T · 4.60 GHz
1,173
Intel Core i7-8700
6C / 12T · 4.60 GHz
1,172
Cinebench R20 Multi-Core

Cinebench R20 Multi-Core
Multi-core performance

Intel Core i5-13400
10C / 16T · 4.10 GHz
6,055 cb
AMD Ryzen 5 7600X
6C / 12T · 5.30 GHz
5,989 cb
Intel Core i9-9940X
14C / 28T · 4.20 GHz
5,912 cb
AMD Ryzen 5 7600
6C / 12T · 4.50 GHz
5,850 cb
AMD Ryzen 5 PRO 7645
6C / 12T · 4.50 GHz
5,850 cb
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

AMD Ryzen 7 7700
8C / 16T · 4.60 GHz
14,026
Intel Xeon Gold 6230R
26C / 52T · 2.30 GHz
13,953
Intel Core i9-9940X
14C / 28T · 4.20 GHz
13,946
AMD Ryzen 9 5900
12C / 24T · 4.10 GHz
13,874
Intel Xeon Gold 6226R
16C / 32T · 3.60 GHz
13,838
Cinebench R15 (Single-Core)

Cinebench R15 (Single-Core)
Single-core performance

Intel Core i7-7700K
4C / 8T · 4.50 GHz
200 cb
Intel Core i9-10900X
10C / 20T · 4.70 GHz
198 cb
Intel Core i9-9940X
14C / 28T · 4.50 GHz
197 cb
AMD Ryzen 5 4400GE
6C / 12T · 4.20 GHz
195 cb
AMD Ryzen 5 4600G
6C / 12T · 4.20 GHz
195 cb
Cinebench R15 (Multi-Core)

Cinebench R15 (Multi-Core)
Multi-core performance

Intel Core i5-12600K
10C / 16T · 4.50 GHz
2,596 cb
Intel Core i5-12600KF
10C / 16T · 4.50 GHz
2,596 cb
Intel Core i9-9940X
14C / 28T · 4.20 GHz
2,587 cb
AMD Ryzen Threadripper 2920X
12C / 24T · 3.60 GHz
2,584 cb
Intel Xeon Gold 6142M
16C / 32T · 2.90 GHz
2,578 cb

More benchmarks

At a glance

PropertyValue
FamilyIntel Core i9 (81)
CPU groupIntel Core i 9000X (8)
ArchitectureSkylake X Refresh
Technology14 nm
SegmentDesktop
SocketLGA 2066
Generation9
PredecessorIntel Core i9-7940X
Q4/2017
Successor

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads14 / 28
Hyperthreading / SMT
Core architecturenormal
Cores: 14x
Frequency: 3.30 GHz
Turbo Frequency (1 Core): 4.50 GHz
Turbo Frequency (14 Cores): 4.20 GHz
L2-Cache
L3-Cache19.00 MB
OverclockingYes

Memory & PCIe

Memory typeMemory bandwidth
DDR4-2666
85.4 GB/s
PropertyValue
Max. Memory128 GB
Memory channels4
ECC
PCIe3.0 x 44
PCIe Bandwidth43.3 GB/s

Thermal Management

PropertyValue
TDP165 W
TDP (PL2)
TDP up
TDP down
T. junction max.92 °C

Technical details

PropertyValue
Chip designMonolithic
AES-NI
Operating systemsWindows 10, Windows 11, Linux
Instruction setx86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2, AVX-512
Release dateQ4/2018
Release price1387 $
DocumentsTechnical data sheet
Intel Core i9-9940X
Intel Core i9-9940X
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