Core i3-2102 vs Core i5-10400F

Intel

Core i3-2102

2 Cores4 Thrd65 WWMax: 3.1 GHz2011
Similar parts
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VS
Intel

Core i5-10400F

6 Cores12 Thrd65 WWMax: 4.3 GHz2020
Core family
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Core i3-2102 vs Core i5-10400F Performance Spectrum

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Core i3-2102 vs Core i5-10400F FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i3-2102 vs Core i5-10400F: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i3-2102

2011

Why buy it

  • Costs $43 less on MSRP ($117 MSRP vs $160 MSRP).
  • Integrated graphics onboard with Intel HD Graphics 2000, while Core i5-10400F needs a discrete GPU.

Trade-offs

  • Worse for gaming: lower average FPS than Core i5-10400F across 50 shared CPU benchmark tests.
  • Lower Geekbench multi-core (1,082 vs 5,783).
  • Smaller total L3 cache (3 MB vs 12 MB).
  • Lower PassMark per dollar, at 17.3 vs 81.4 PassMark/$ ($117 MSRP vs $160 MSRP).

Core i5-10400F

2020

Why buy it

  • Better for gaming: +266.6% higher average FPS across 50 shared CPU benchmark tests.
  • +300% larger total L3 cache (12 MB vs 3 MB).
  • Delivers 369.6% more PassMark for each dollar spent, at 81.4 vs 17.3 PassMark/$ ($160 MSRP vs $117 MSRP).

Trade-offs

  • 36.8% HIGHER MSRP
    $160 MSRPvs$117 MSRP
  • No integrated graphics, while Core i3-2102 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-10400F better than Core i3-2102?
Yes. Core i5-10400F is the better all-around CPU here. It gives you a 266.6% average FPS lead across 50 shared CPU game tests in our data, 434.5% better Geekbench multi-core, 542.1% higher PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.
Which one is better for gaming?
If gaming is the priority, Core i5-10400F is the better pick. According to our tests, it delivers 266.6% more average FPS across 50 shared CPU game tests.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Core i5-10400F is the stronger fit. You are getting 434.5% better Geekbench multi-core, backed by 6 cores and 12 threads. It also has the larger cache pool with 300% larger total L3 cache (12 MB vs 3 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Core i5-10400F is the better buy right now. Core i5-10400F comes in 36.8% more expensive on MSRP at $160 MSRP versus $117 MSRP, and it still gives you a 266.6% average FPS lead across 50 shared CPU game tests in our data. It is also 369.6% better value on MSRP (81.4 vs 17.3 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.
Which one is more future-proof for 2026 and beyond?
Core i5-10400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2011), 300% larger total L3 cache (12 MB vs 3 MB), and more multi-core headroom with 6 cores / 12 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-2102 vs Core i5-10400F Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Intel

Core i3-2102

The Core i3-2102 is manufactured by Intel. It was released in 1 June 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,029 points. Launch price was $69.

Intel

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

Processing Power

The Core i3-2102 packs 2 cores / 4 threads, while the Core i5-10400F offers 6 cores / 12 threads — the Core i5-10400F has 4 more cores. Boost clocks reach 3.1 GHz on the Core i3-2102 versus 4.3 GHz on the Core i5-10400F — a 32.4% clock advantage for the Core i5-10400F (base: 3.1 GHz vs 2.9 GHz). The Core i3-2102 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i5-10400F uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i3-2102 scores 2,029 against the Core i5-10400F's 13,029 — a 146.1% lead for the Core i5-10400F. Geekbench 6 single-core — the metric most relevant to gaming — records 515 vs 1,454, a 95.4% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 1,082 vs 5,783 (137% advantage for the Core i5-10400F). L3 cache: 3 MB (total) on the Core i3-2102 vs 12 MB (total) on the Core i5-10400F.

FeatureCore i3-2102Core i5-10400F
Cores / Threads
2 / 4
6 / 12+200%
Boost Clock
3.1 GHz
4.3 GHz+39%
Base Clock
3.1 GHz+7%
2.9 GHz
L3 Cache
3 MB (total)
12 MB (total)+300%
L2 Cache
256 kB (per core)
256K (per core)
Process
32 nm
14 nm-56%
Architecture
Sandy Bridge (2011−2013)
Comet Lake (2020−2025)
PassMark
2,029
13,029+542%
Cinebench R23 Multi
8,191
Geekbench 6 Single
515
1,454+182%
Geekbench 6 Multi
1,082
5,783+434%
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Memory & Platform

The Core i3-2102 uses the LGA1155 socket (PCIe 2.0), while the Core i5-10400F uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i3-2102 versus DDR4-2666 on the Core i5-10400F — the Core i5-10400F supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-10400F supports up to 128 GB of RAM compared to 32 GB 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H61,H67,P67,Z68 (Core i3-2102) and H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F).

FeatureCore i3-2102Core i5-10400F
Socket
LGA1155
LGA1200
PCIe Generation
PCIe 2.0
PCIe 3.0+50%
Max RAM Speed
DDR3-1333
DDR4-2666+100%
Max RAM Capacity
32 GB
128 GB+300%
RAM Channels
2
2
ECC Support
No
No
PCIe Lanes
16
16
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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core i3-2102) vs VT-x, VT-d (Core i5-10400F). The Core i3-2102 includes integrated graphics (Intel HD Graphics 2000), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i3-2102 targets Office Desktop, Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

FeatureCore i3-2102Core i5-10400F
Integrated GPU
Yes
No
IGPU Model
Intel HD Graphics 2000
Unlocked
No
No
AVX-512
No
No
Virtualization
VT-x
VT-x, VT-d
Target Use
Office Desktop
Gaming
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Value Analysis

At launch, the Core i3-2102 was priced at $117, while the Core i5-10400F came in at $160. On launch pricing ($117 vs $160), Core i3-2102 was $43 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-2102 delivers 17.3 pts/$ vs 81.4 pts/$ for the Core i5-10400F — making the Core i5-10400F the 129.8% better value option.

FeatureCore i3-2102Core i5-10400F
MSRP
$117-27%
$160
Performance per Dollar
17.3
81.4+371%
Release Date
2011
2020

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