Intel Core i5-11400 vs Intel Core i7-940

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i5-11400 or Intel Core i5-11400 – 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 i5-11400 features 6 processor cores and has the capability to manage 12 threads concurrently.
It was released in Q1/2021 and belongs to the 11 generation of the Intel Core i5 series.
To use the Intel Core i5-11400, you'll need a motherboard with a LGA 1200 socket.
The Intel Core i7-940 features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q4/2008 and belongs to the 1 generation of the Intel Core i7 series.
To use the Intel Core i7-940, you'll need a motherboard with a LGA 1366 socket.
Intel Core i 11000 Group Intel Core i7 900
11 Generation 1
Intel Core i5-11400 Name Intel Core i7-940
Desktop / Server Segment Desktop / Server
Intel Core i5 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i5-11400 has 6 CPU cores and can calculate 12 threads in parallel.
The clock frequency of the Intel Core i5-11400 is 2.6 GHz
and turbo frequency for one core is 4.4 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-940 has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-940 is 2.93 GHz
and turbo frequency for one core is 3.2 GHz.
4.2 GHz Turbo Frequency (all cores) None
4.4 GHz Turbo Frequency (1 core) 3.2 GHz
normal Core architecture normal
2.6 GHz Frequency 2.93 GHz
6 CPU Cores 4
No Overclocking No
Yes Hyperthreading Yes
6x Cores 4x
12 Threads 8
 
 

Internal Graphics

The Intel Core i5-11400 has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-11400 uses the Intel UHD Graphics 730, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-940 does not have integrated graphics.
1.3 GHz GPU (Turbo) --
14 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
24 Execution units --
Q1/2021 Release date --
Intel UHD Graphics 730 GPU name
192 Shaders --
0.35 GHz GPU frequency --
12 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.
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode VP9 --
Decode / Encode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
Decode / Encode h264 --
Decode / Encode h265 / HEVC (10 bit) --
Decode / Encode AVC --
Decode AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 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 24.0 GB distributed across 3 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR4-3200 Memory type DDR3-1066
51.2 GB/s Bandwidth 25.6 GB/s
Yes AES-NI No
No ECC No
pci PCIe pci
128.0 GB Max. Memory 24.0 GB
2 Memory channels 3
 
 

Thermal Management

The processor has a thermal design power (TDP) of 65 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.
The processor has a thermal design power (TDP) of 130 W watts.
65 W TDP (PL1 / PBP) 130 W
100 °C Tjunction max --
 
 

Technical details

The Intel Core i5-11400 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 12.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-940 is manufactured using a 45 nm process.
In total, this processor boasts a generous 8.0 MB cache.
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
14 nm Technology 45 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
-- Part Number BX80601940
Monolithic Chip design Monolithic
Q1/2021 Release date Q4/2008
182 $ Release price 305 $
3.0 MB L2-Cache 1.0 MB
Technical data sheet Documents Technical data sheet
12.0 MB L3-Cache 8.0 MB
LGA 1200 Socket LGA 1366
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
Rocket Lake S Architecture Bloomfield
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i5-11400
6C 12T @ 2.6 GHz
17082
17082
Intel Core i7-940
4C 8T @ 2.93 GHz
2989
2989

Geekbench 6 (Multi-Core)

Intel Core i5-11400
6C 12T @ 2.6 GHz
7895
7895
Intel Core i7-940
4C 8T @ 2.93 GHz
1890
1890

Geekbench 5, 64bit (Multi-Core)

Intel Core i5-11400
6C 12T @ 2.6 GHz
7270
7270
Intel Core i7-940
4C 8T @ 2.93 GHz
2253
2253

Geekbench 6 (Single-Core)

Intel Core i5-11400
6C 12T @ 2.6 GHz
1978
1978
Intel Core i7-940
4C 8T @ 2.93 GHz
568
568

Geekbench 5, 64bit (Single-Core)

Intel Core i5-11400
6C 12T @ 2.6 GHz
1513
1513
Intel Core i7-940
4C 8T @ 2.93 GHz
537
537