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Intel Core i5-8400 vs Intel Core i7-12700

Last updated: 2026-06-06

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 57 %

Intel Core i5-8400

Rank 1 - 100 %

Intel Core i7-12700

Multi-core performance

Rank 2 - 34 %

Intel Core i5-8400

Rank 1 - 100 %

Intel Core i7-12700

Cinebench 2024 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

62 pts

12C / 20T · 4.90 GHz

107 pts

Cinebench 2024 Multi-Core
Multi-core performance

6C / 6T · 4.00 GHz

283 pts

12C / 20T · 4.90 GHz

1,004 pts

Geekbench 6 Single-Core
Single-core performance

6C / 6T · 4.00 GHz

1,322

12C / 20T · 4.90 GHz

2,497

Geekbench 6 Multi-Core
Multi-core performance

6C / 6T · 3.80 GHz

4,814

12C / 20T · 4.00 GHz

12,448

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

6C / 6T · 4.00 GHz

1,053

12C / 20T · 4.90 GHz

1,712

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

6C / 6T · 3.80 GHz

4,608

12C / 20T · 4.00 GHz

11,650

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel UHD Graphics 630

442

Intel UHD Graphics 770

768

Blender 3.1 Benchmark
Multi-core performance

6C / 6T · 3.80 GHz

12C / 20T · 4.00 GHz

284

Cinebench R15 (Single-Core)
Single-core performance

6C / 6T · 4.00 GHz

163 cb

12C / 20T · 4.90 GHz

259 cb

Cinebench R15 (Multi-Core)
Multi-core performance

6C / 6T · 3.80 GHz

925 cb

12C / 20T · 4.00 GHz

3,140 cb

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

Specifications

At a glance

Wischen	Intel Core i5-8400	Intel Core i7-12700
Family	Intel Core i5 (336)	Intel Core i7 (300)
CPU group	Intel Core i 8000 (20)	Intel Core i 12000 (34)
Architecture	Coffee Lake S	Alder Lake S
Technology	14 nm	10 nm
Segment	Desktop	Desktop
Socket	LGA 1151-2	LGA 1700
Predecessor	Intel Core i5-7400	Intel Core i7-11700
Successor	Intel Core i5-9400	Intel Core i7-13700

CPU Cores and Base Frequency

Wischen	Intel Core i5-8400	Intel Core i7-12700
CPU Cores / Threads	6 / 6	12 / 20
Hyperthreading / SMT	✗	✓
Core architecture	normal	hybrid (big.LITTLE)
Core Cluster 1:	6x 2.80 - 4.00 GHz	8x Golden Cove 2.10 - 4.90 GHz
Core Cluster 2:		4x Gracemont 1.60 - 3.60 GHz
L2-Cache		12.00 MB
L3-Cache	9.00 MB	25.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-8400	Intel Core i7-12700
GPU name	Intel UHD Graphics 630	Intel UHD Graphics 770
GPU frequency	0.35 - 1.15 GHz	0.30 - 1.50 GHz
CUs / Shader	24 / 192	32 / 256
Raytracing	✗	✗
Max. displays	3	3
Max. GPU Memory	64 GB	64 GB
Technology	14 nm	10 nm
Release date	Q4/2017	Q4/2021

NPU AI performance

Wischen	Intel Core i5-8400	Intel Core i7-12700
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-8400	Intel Core i7-12700
Memory	DDR4-2666 (42.7 GB/s)	DDR5-4800 (76.8 GB/s) DDR4-3200 (51.2 GB/s)
Max. Memory	128 GB	128 GB
Memory channels	2	2
ECC	No	Yes
PCIe	3.0 x 16	5.0 x 20
PCIe Bandwidth	15.8 GB/s	78.8 GB/s

Thermal Management

Wischen	Intel Core i5-8400	Intel Core i7-12700
TDP	65 W	65 W
TDP (PL2)		180 W
TDP up
TDP down
T. junction max.		100 °C

Technical details

Wischen	Intel Core i5-8400	Intel Core i7-12700
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Windows 11, Linux	Windows 10, Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX2, AVX2+
Release date	Q4/2017	Q1/2022
Release price	260 $	339 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-8400 is 4.1 stars (75 ratings), while Intel Core i7-12700 has received 4.4 stars (93 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-8400
6C / 6T · 2.80 - 4.00 GHz

★★★★★

Intel Core i7-12700
12C / 20T · 2.10 - 4.90 GHz

★★★★★