Core i3-12100 vs Core i5-1245U: CPU comparison

Performance score

Core i3-12100 2022 · 4/8 cores/threads, 60 W

25.88

Core i5-1245U 2022 · 10/12 cores/threads

25.82

Core Ultra 7 258V Ryzen 5 7500F Ryzen AI 9 HX 370 Ryzen 7 9800X3D Core i9-14900HX Core Ultra 7 265K Core i9-14900K Ryzen 9 9950X

Core i3-12100 and Core i5-1245U are almost equally fast (under 3% apart) — choose by price, socket and platform.

The score is our own estimate from the specs (cores, threads, clocks, architecture generation), not a benchmark run. 100 = the fastest CPU in our database.

Real tests

What the test measures

Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.

CPU rendering (Blender)

Core i3-12100

97+56 %

faster than 49% of tested · runs: 6

Core i5-1245U

62

faster than 12% of tested · runs: 1

Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.

Overview

	Core i3-12100	Core i5-1245U
Score (0–100)	25.88	25.82
Ranking position	363	365
Power efficiency (0–100)	22.54	no data
Type	Desktop	Laptop
Manufacturer	Intel	Intel
Architecture	Alder Lake	Alder Lake
Release date	Q1 2022	Q2 2022

Specifications

	Core i3-12100	Core i5-1245U
Cores	4	10
Threads	8	12
P + E cores	no data	2 + 8
Base clock	no data	1.6 GHz
Boost clock	4.3 GHz	4.4 GHz
L3 cache	12 MB	12 MB
Process node	Intel 7	no data
Unlocked multiplier	no	no
Integrated graphics	Intel UHD Graphics 730	Intel Iris Xe Graphics
NPU (AI accelerator)	no	no

Compatibility

	Core i3-12100	Core i5-1245U
Socket	LGA1700	no data
TDP	60 W	no data

Memory and PCI Express

	Core i3-12100	Core i5-1245U
Memory type	DDR5-4800, DDR4-3200	no data
Memory channels	2	no data
Max memory	128 GB	no data
PCI Express version	5.0	no data
PCIe lanes	20	no data

Pros and cons

Core i3-12100

no notable advantages

Core i5-1245U

more cores: 10 vs 4
more threads: 12 vs 8

Other comparisons

Visitor rating

Questions and comments

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