Intel Core2 Duo E8400 Vs Intel Core I3-2120 - Benchmark And ...

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Follow us| Share link| Submit benchmark Comparison Search Benchmarks CPUs Leaderboards CPU News & Articles GPU comparison Apple product comparison DeutschEnglishEspañolFrançaisItalianoJapanese VS Intel Core2 Duo E8400 vs Intel Core i3-2120 Last updated: 2025-12-14 Table of Contents

• Summary
• Benchmarks
• Specifications
• User Reviews
• Popular Comparisons

Summary Benchmarks Specifications User Reviews Popular Comparisons

Summary

Benchmarks

Performance Overview Average performance across multiple benchmarks

Single-core performance Rank 2 - 82 % Intel Core2 Duo E8400 Rank 1 - 100 % Intel Core i3-2120 Multi-core performance Rank 2 - 58 % Intel Core2 Duo E8400 Rank 1 - 100 % Intel Core i3-2120

Geekbench 5, 64bit Single-CoreSingle-core performance

Intel Core2 Duo E8400 71 % 2C / 2T · 3.00 GHz 473 Intel Core i3-2120 100 % 2C / 4T · 3.30 GHz 668 2,507 entriesShow all results

Geekbench 5, 64bit Multi-CoreMulti-core performance

Intel Core2 Duo E8400 57 % 2C / 2T · 3.00 GHz 841 Intel Core i3-2120 100 % 2C / 4T · 3.30 GHz 1,478 2,478 entriesShow all results

CPU-Z Benchmark 17 Single-CoreSingle-core performance

Intel Core2 Duo E8400 94 % 2C / 2T · 3.00 GHz 252 Intel Core i3-2120 100 % 2C / 4T · 3.30 GHz 268 244 entriesShow all results

CPU-Z Benchmark 17 Multi-CoreMulti-core performance

Intel Core2 Duo E8400 59 % 2C / 2T · 3.00 GHz 465 Intel Core i3-2120 100 % 2C / 4T · 3.30 GHz 783 746 entriesShow all results

More benchmarks

Geekbench 6 (SC) 1,960 entries Geekbench 6 (MC) 1,896 entries Geekbench 5 (SC) 2,507 entries Geekbench 5 (MC) 2,478 entries FP32 SP (iGPU) 2,190 entries PassMark CPU-Mark 2,488 entries CPU-Z Benchmark 17 (SC) 244 entries CPU-Z Benchmark 17 (MC) 746 entries

Specifications

At a glance

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
Family	Intel Core2 Duo (29)	Intel Core i3 (205)
CPU group	Intel Core 2 Duo E7000/E8000 (14)	Intel Core i 2000 (28)
Architecture	Wolfdale (Penryn)	Sandy Bridge S
Technology	45 nm	32 nm
Segment	Desktop	Desktop
Socket	LGA 775	LGA 1155
Predecessor
Successor

CPU Cores and Base Frequency

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
CPU Cores / Threads	2 / 2	2 / 4
Hyperthreading / SMT	✗	✓
Core architecture	normal	normal
Cores:	2x	2x
Frequency:	3.00 GHz	3.30 GHz
Turbo (1 Core):
Turbo (All Cores):
L2-Cache	6.00 MB
L3-Cache	3.00 MB
Overclocking	✓	✗

Integrated graphics (iGPU)

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
GPU name	no iGPU	Intel HD Graphics 2000
GPU frequency	0.85 - 1.10 GHz
CUs / Shader	/	6 / 48
Raytracing	✗	✗
Max. displays	2
Max. GPU Memory	2 GB
Technology	32 nm
Release date	Q1/2011

NPU AI performance

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
Memory	DDR3-1333 (21.3 GB/s)DDR2-1066 (17.1 GB/s)	DDR3-1333 (21.3 GB/s)
Max. Memory	16 GB	32 GB
Memory channels	2	2
ECC	No	No
PCIe	2.0 x 16
PCIe Bandwidth	8.0 GB/s

Thermal Management

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
TDP	65 W	65 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Wischen	Intel Core2 Duo E8400	Intel Core i3-2120
Chip design	Monolithic	Monolithic
AES-NI	✗	✓
Operating systems	Windows 10, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	MMX, SSE, SSE2, SSE3, SSE 4.1	SSE4.1, SSE4.2, AVX
Release date	Q1/2008	Q1/2011
Release price	120 $
Documents	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core2 Duo E8400 is 4.3 stars (40 ratings), while Intel Core i3-2120 has received 2.9 stars (19 ratings). Click on the stars to rate one or both processors.

Intel Core2 Duo E8400 2C / 2T · 3.00 GHz ★★★★★ Intel Core i3-2120 2C / 4T · 3.30 GHz ★★★★★

Most popular CPUs in both categories

1 Apple M3 Ultra (28-CPU 60-GPU) 28C / 28T · 4.06 GHz ★ 5.0 (205 reviews) 2 Apple M3 Ultra (32-CPU 80-GPU) 32C / 32T · 4.06 GHz ★ 4.9 (433 reviews) 3 Intel Core i5-13600KF 14C / 20T · 5.10 GHz ★ 4.7 (104 reviews) 4 AMD Ryzen 7 5800XT 8C / 16T · 4.80 GHz ★ 4.7 (72 reviews) 5 Intel Xeon E5-2680 v4 14C / 28T · 3.30 GHz ★ 4.6 (127 reviews) 6 Intel Core i5-14600KF 14C / 20T · 5.30 GHz ★ 4.6 (103 reviews) 7 AMD Ryzen 5 1600 AF 6C / 12T · 3.60 GHz ★ 4.6 (52 reviews) 8 Intel Core2 Duo E8400 2C / 2T · 0.00 GHz ★ 4.3 (40 reviews) 9 Intel Core i3-2120 2C / 4T · 0.00 GHz ★ 2.9 (19 reviews)

Popular Comparisons

1 Intel Core i3-11340 CPM4 C / 8 T · 4.80 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 2 Intel Core i3-1215U6 C / 8 T · 4.40 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 3 Intel Core i5-1235U10 C / 12 T · 4.40 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 4 Intel Core i5-124006 C / 12 T · 4.40 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 5 AMD Ryzen 5 56006 C / 12 T · 4.40 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 6 Intel Core i3-12100F4 C / 8 T · 4.30 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 7 Intel Core i3-121004 C / 8 T · 4.30 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 8 Qualcomm Snapdragon 8cx Gen 38 C / 8 T · 3.00 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 9 AMD Ryzen 5 5625U6 C / 12 T · 4.30 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz 10 AMD Ryzen 7 5825U8 C / 16 T · 4.50 GHz VS Intel Core2 Duo E84002 C / 2 T · 3.00 GHz Intel Core2 Duo E8400 2C / 2T · 3.00 GHz Buy on Amazon Intel Core i3-2120 2C / 4T · 3.30 GHz Buy on Amazon Share link Submit benchmark Follow us Intel Core2 Duo E8400 Buy on Amazon Notice: We do not take any responsibility for the data shown at our site. Please use at your own risk.Affiliate note: As an Amazon affiliate, we earn from qualifying sales Benchmark guidelines | About us | Imprint | Data protection | Contact / Advertise | Team | Privacy Manager