Core i7-3840QM vs Core i5-8365U

Core i7-3840QM

4 Cores8 Thrd45 WWMax: 3.8 GHz2012

Core i5-8365U

4 Cores8 Thrd15 WWMax: 4.1 GHz2019

Performance Spectrum - CPU

Core i7-3840QM

4 / 8

5,871

0.0%

5,939

+1.2%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i7-3840QM is positioned at rank 238 and the Core i5-8365U is on rank 880, so the Core i7-3840QM offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i7-3840QM

#64

Ryzen AI Max PRO 390

MSRP: $600|Avg: $600

98%

#226

Atom x5-Z8300

MSRP: $20|Avg: N/A

400%

#227

Atom Z3735G

MSRP: $17|Avg: N/A

394%

#228

Core i5-480M

MSRP: $81|Avg: $77

362%

#229

Core i5-460M

MSRP: $80|Avg: $129

360%

#230

Core i5-2540M

MSRP: $266|Avg: $10

357%

#232

Core i5-450M

MSRP: $32|Avg: $31

344%

#233

Core i3-380M

MSRP: $49|Avg: $25

330%

#234

Core i5-430M

MSRP: N/A|Avg: $33

330%

#235

Core 2 Duo T6600

MSRP: N/A|Avg: $4

321%

#238

Core i7-3840QM

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-8365U

#865

Atom x5-Z8300

MSRP: $20|Avg: N/A

1467%

#866

Atom Z3735G

MSRP: $17|Avg: N/A

1446%

#867

Core i5-480M

MSRP: $81|Avg: $77

1327%

#868

Core i5-460M

MSRP: $80|Avg: $129

1321%

#869

Core i5-2540M

MSRP: $266|Avg: $10

1309%

#871

Core i5-450M

MSRP: $32|Avg: $31

1264%

#872

Core i3-380M

MSRP: $49|Avg: $25

1212%

#873

Core i5-430M

MSRP: N/A|Avg: $33

1210%

#874

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1178%

#879

Celeron Dual-Core T1600

MSRP: $150|Avg: $150

100%

#880

Core i5-8365U

MSRP: N/A|Avg: N/A

100%

#881

Athlon II N330

MSRP: $100|Avg: $50

100%

#886

Core i7-7820EQ

MSRP: $378|Avg: $378

99%

#887

Celeron 7305

MSRP: $128|Avg: $107

98%

#888

E-300

MSRP: $60|Avg: $20

98%

#889

Core i7-7820HK

MSRP: $378|Avg: N/A

98%

#892

Pentium B940

MSRP: $134|Avg: $11

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Core i5-8365U (2019) utilizes 14 nm technology and DDR4, providing a fundamental performance advantage.

Insight	Core i7-3840QM	Core i5-8365U
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm)	✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm)

💎 Value Proposition

The Core i7-3840QM (2012) relies on 22 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Core i7-3840QM	Core i5-8365U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i7-3840QM Benchmark Check

Core i5-8365U Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-3840QM and Core i5-8365U

Core i7-3840QM

The Core i7-3840QM is manufactured by Intel. It was released in 3 September 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 5,871 points. Launch price was $568.

Core i5-8365U

The Core i5-8365U is manufactured by Intel. It was released in 16 April 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.6 GHz, with boost up to 4.1 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,939 points. Launch price was $297.

⚡

Processing Power

Both the Core i7-3840QM and Core i5-8365U share an identical 4-core/8-thread configuration. Boost clocks reach 3.8 GHz on the Core i7-3840QM versus 4.1 GHz on the Core i5-8365U — a 7.6% clock advantage for the Core i5-8365U (base: 2.8 GHz vs 1.6 GHz). The Core i7-3840QM uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Core i5-8365U uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i7-3840QM scores 5,871 against the Core i5-8365U's 5,939 — a 1.2% lead for the Core i5-8365U. L3 cache: 8 MB (total) on the Core i7-3840QM vs 6 MB (total) on the Core i5-8365U.

Feature	Core i7-3840QM	Core i5-8365U
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.8 GHz	4.1 GHz+8%
Base Clock	2.8 GHz+75%	1.6 GHz
L3 Cache	8 MB (total)+33%	6 MB (total)
L2 Cache	256K (per core)	256 kB (per core)
Process	22 nm	14 nm-36%
Architecture	Ivy Bridge (2012−2013)	Whiskey Lake-U (2018−2019)
PassMark	5,871	5,939+1%
Geekbench 6 Single	676	—

🧠

Memory & Platform

The Core i7-3840QM uses the PGA988 socket (PCIe 3.0), while the Core i5-8365U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-3840QM	Core i5-8365U
Socket	PGA988	FCBGA1528
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR3-1600	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i7-3840QM) / not specified (Core i5-8365U). The Core i7-3840QM includes integrated graphics (HD Graphics 4000), while the Core i5-8365U requires a dedicated GPU. Primary use case: Core i7-3840QM targets Mobile Workstation. Direct competitor: Core i7-3840QM rivals A10-5750M.