Intel Core i5-12400 vs Intel Core i7-3770K

Last updated:

CPU comparison with benchmarks


Intel Core i5-12400 CPU1 vs CPU2 Intel Core i7-3770K
Intel Core i5-12400 Intel Core i7-3770K

CPU comparison

Intel Core i5-12400 or Intel Core i7-3770K - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i5-12400 has 6 cores with 12 threads and clocks with a maximum frequency of 4.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i5-12400 was released in Q1/2022.

The Intel Core i7-3770K has 4 cores with 8 threads and clocks with a maximum frequency of 3.90 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-3770K was released in Q2/2012.
Intel Core i5 (328) Family Intel Core i7 (293)
Intel Core i 12000 (34) CPU group Intel Core i 3000 (31)
12 Generation 3
Alder Lake S Architecture Ivy Bridge S
Desktop / Server Segment Desktop / Server
Intel Core i5-11400 Predecessor --
Intel Core i5-13400 Successor Intel Core i7-4770K

CPU Cores and Base Frequency

The Intel Core i5-12400 has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the Intel Core i5-12400 is 2.50 GHz (4.40 GHz) while the Intel Core i7-3770K has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Core i7-3770K is at 3.50 GHz (3.90 GHz).

Intel Core i5-12400 Characteristic Intel Core i7-3770K
6 Cores 4
12 Threads 8
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
2.50 GHz Frequency 3.50 GHz
4.40 GHz Turbo Frequency (1 Core) 3.90 GHz
4.00 GHz Turbo Frequency (All Cores) 3.90 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i5-12400 Characteristic Intel Core i7-3770K
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core i5-12400 or Intel Core i7-3770K has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

Intel UHD Graphics 730 GPU Intel HD Graphics 4000
0.30 GHz GPU frequency 0.65 GHz
1.45 GHz GPU (Turbo) 1.15 GHz
12 GPU Generation 7
14 nm Technology 22 nm
3 Max. displays 3
24 Compute units 16
192 Shader 128
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory 2 GB
12 DirectX Version 11.0

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.

Intel UHD Graphics 730 GPU Intel HD Graphics 4000
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode

Memory & PCIe

The Intel Core i5-12400 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 76.8 GB/s. The Intel Core i7-3770K supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 25.6 GB/s.

Intel Core i5-12400 Characteristic Intel Core i7-3770K
DDR5-4800, DDR4-3200 Memory DDR3-1600
128 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
76.8 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
7.50 MB L2 Cache --
18.00 MB L3 Cache 8.00 MB
5.0 PCIe version 3.0
20 PCIe lanes 16
78.8 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i5-12400 is 65 W, while the Intel Core i7-3770K has a TDP of 77 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i5-12400 Characteristic Intel Core i7-3770K
65 W TDP (PL1 / PBP) 77 W
117 W TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i5-12400 is manufactured in 10 nm and has 25.50 MB cache. The Intel Core i7-3770K is manufactured in 22 nm and has a 8.00 MB cache.

Intel Core i5-12400 Characteristic Intel Core i7-3770K
10 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX2+ ISA extensions SSE4.1, SSE4.2, AVX
LGA 1700 Socket LGA 1155
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q1/2022 Release date Q2/2012
192 $ Release price 275 $
show more data show more data


Rate these processors

Here you can rate the Intel Core i5-12400 to help other visitors make their purchasing decisions. The average rating is 4.4 stars (13 ratings). Rate now:
Here you can rate the Intel Core i7-3770K to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 5 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
1647 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
873 (53%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
9451 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
3409 (36%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
2181 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
737 (34%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
8820 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
2527 (29%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
664 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
286 (43%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
4784 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
1391 (29%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i5-12400 Intel Core i5-12400
Intel UHD Graphics 730 @ 1.45 GHz
557 (100%)
Intel Core i7-3770K Intel Core i7-3770K
Intel HD Graphics 4000 @ 1.15 GHz
294 (53%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
19559 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
6474 (33%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 2.50 GHz
4737 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.50 GHz
1866 (39%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
102 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
701 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
0 (0%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
1623 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
12454 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
170 (100%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
0 (0%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
0 (0%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
597.4 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
0 (0%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
384 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.40 GHz
0 (0%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
137 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-12400 Intel Core i5-12400
6C 12T @ 4.00 GHz
0 (0%)
Intel Core i7-3770K Intel Core i7-3770K
4C 8T @ 3.90 GHz
672 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
Intel Core i5-12400 Intel Core i5-12400
12,454 CB R23 MC @ 82 W
152 (100%)
Intel Core i7-3770K Intel Core i7-3770K
3.50 GHz
0 (0%)

Devices using this processor

Intel Core i5-12400 Intel Core i7-3770K
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Core i5-12400AMD Ryzen 5 5600G Intel Core i5-12400 vs AMD Ryzen 5 5600G
2. Intel Core i5-13400Intel Core i5-12400 Intel Core i5-13400 vs Intel Core i5-12400
3. Intel Core i5-12400AMD Ryzen 5 5600X Intel Core i5-12400 vs AMD Ryzen 5 5600X
4. Intel Core i5-12400Intel Core i5-12400F Intel Core i5-12400 vs Intel Core i5-12400F
5. Intel Core i5-12400Intel Core i5-12500 Intel Core i5-12400 vs Intel Core i5-12500
6. Intel Core i5-12400AMD Ryzen 7 5700G Intel Core i5-12400 vs AMD Ryzen 7 5700G
7. Intel Core i5-12400Intel Core i5-11400 Intel Core i5-12400 vs Intel Core i5-11400
8. Intel Core i5-12400Intel Core i5-10400 Intel Core i5-12400 vs Intel Core i5-10400
9. Intel Core i3-12100Intel Core i5-12400 Intel Core i3-12100 vs Intel Core i5-12400
10. Intel Core i5-12400Intel Core i5-12600K Intel Core i5-12400 vs Intel Core i5-12600K


back to index