Intel Core i9-9940X vs Intel Core i9-10900X

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-9940X or Intel Core i9-9940X – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i9-9940X features 14 processor cores and has the capability to manage 28 threads concurrently.
It was released in Q4/2018 and belongs to the 9 generation of the Intel Core i9 series.
To use the Intel Core i9-9940X, you'll need a motherboard with a LGA 2066 socket.
The Intel Core i9-10900X features 10 processor cores and has the capability to manage 20 threads concurrently.
It was released in Q4/2019 and belongs to the 10 generation of the Intel Core i9 series.
To use the Intel Core i9-10900X, you'll need a motherboard with a LGA 2066 socket.
Intel Core i 9000X Group Intel Core i 10000X
9 Generation 10
Intel Core i9-9940X Name Intel Core i9-10900X
Desktop / Server Segment Desktop / Server
Intel Core i9 Family Intel Core i9
 
 

CPU Cores and Base Frequency

The Intel Core i9-9940X has 14 CPU cores and can calculate 28 threads in parallel.
The clock frequency of the Intel Core i9-9940X is 3.3 GHz
and turbo frequency for one core is 4.5 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i9-10900X has 10 CPU cores and can calculate 20 threads in parallel.
The clock frequency of the Intel Core i9-10900X is 3.7 GHz
and turbo frequency for one core is 4.7 GHz.
4.5 GHz Turbo Frequency (1 core) 4.7 GHz
normal Core architecture normal
3.3 GHz Frequency 3.7 GHz
14 CPU Cores 10
Yes Overclocking Yes
Yes Hyperthreading Yes
14x Cores 10x
28 Threads 20
 
 

Internal Graphics

The Intel Core i9-9940X does not have integrated graphics.
The Intel Core i9-10900X does not have integrated graphics.
-- GPU (Turbo) --
-- Technology --
-- Direct X --
0 bytes Max. GPU Memory 0 bytes
-- Execution units --
-- Release date --
GPU name
-- Shaders --
-- GPU frequency --
-- Generation --
-- Max. displays --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
-- h265 / HEVC (8 bit) --
-- VP9 --
-- VP8 --
-- VC-1 --
-- JPEG --
-- h264 --
-- h265 / HEVC (10 bit) --
-- AVC --
-- AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 256.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 93.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR4-2666 Memory type DDR4-2933
42.7 GB/s Bandwidth 93.8 GB/s
Yes AES-NI Yes
No ECC No
pci PCIe pci
128.0 GB Max. Memory 256.0 GB
4 Memory channels 4
 
 

Thermal Management

The processor has a thermal design power (TDP) of 165 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
165 W TDP (PL1 / PBP) 165 W
92 °C Tjunction max 94 °C
 
 

Technical details

The Intel Core i9-9940X is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 19.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i9-10900X is manufactured using a 14 nm process.
In total, this processor boasts a generous 19.2 MB cache.
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
14 nm Technology 14 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
-- Part Number --
Monolithic Chip design Monolithic
Q4/2018 Release date Q4/2019
1387 $ Release price 590 $
0 bytes L2-Cache 0 bytes
Technical data sheet Documents Technical data sheet
19.0 MB L3-Cache 19.2 MB
LGA 2066 Socket LGA 2066
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
Skylake X Refresh Architecture Cascade Lake
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i9-9940X
14C 28T @ 3.3 GHz
28390
28390
Intel Core i9-10900X
10C 20T @ 3.7 GHz
22510
22510

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-9940X
14C 28T @ 3.3 GHz
13946
13946
Intel Core i9-10900X
10C 20T @ 3.7 GHz
10651
10651

Geekbench 6 (Multi-Core)

Intel Core i9-9940X
14C 28T @ 3.3 GHz
10820
10820
Intel Core i9-10900X
10C 20T @ 3.7 GHz
8727
8727

Cinebench R15 (Multi-Core)

Intel Core i9-9940X
14C 28T @ 3.3 GHz
2587
2587
Intel Core i9-10900X
10C 20T @ 3.7 GHz
2358
2358

Geekbench 6 (Single-Core)

Intel Core i9-9940X
14C 28T @ 3.3 GHz
1459
1459
Intel Core i9-10900X
10C 20T @ 3.7 GHz
1445
1445

Geekbench 5, 64bit (Single-Core)

Intel Core i9-9940X
14C 28T @ 3.3 GHz
1174
1174
Intel Core i9-10900X
10C 20T @ 3.7 GHz
1171
1171

Cinebench R15 (Single-Core)

Intel Core i9-10900X
10C 20T @ 3.7 GHz
198
198
Intel Core i9-9940X
14C 28T @ 3.3 GHz
197
197