Core i7-2840QM vs Core i5-6287U

Core i7-2840QM

4 Cores8 Thrd45 WWMax: 2.4 GHz2011

Core i5-6287U

2 Cores4 Thrd28 WWMax: 3.5 GHz2015

Performance Spectrum - CPU

Core i7-2840QM

4 / 8

3,842

+1.1%

3,801

0.0%

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 i7-2840QM is positioned at rank 311 and the Core i5-6287U is on rank 470, so the Core i7-2840QM 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 i7-2840QM

#299

Atom x5-Z8300

MSRP: $20|Avg: N/A

458%

#300

Atom Z3735G

MSRP: $17|Avg: N/A

452%

#301

Core i5-480M

MSRP: $81|Avg: $77

414%

#302

Core i5-460M

MSRP: $80|Avg: $129

413%

#303

Core i5-2540M

MSRP: $266|Avg: $10

409%

#305

Core i5-450M

MSRP: $32|Avg: $31

395%

#306

Core i3-380M

MSRP: $49|Avg: $25

379%

#307

Core i5-430M

MSRP: N/A|Avg: $33

378%

#308

Core 2 Duo T6600

MSRP: N/A|Avg: $4

368%

#311

Core i7-2840QM

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-6287U

#458

Atom x5-Z8300

MSRP: $20|Avg: N/A

618%

#459

Atom Z3735G

MSRP: $17|Avg: N/A

609%

#460

Core i5-480M

MSRP: $81|Avg: $77

559%

#461

Core i5-460M

MSRP: $80|Avg: $129

556%

#462

Core i5-2540M

MSRP: $266|Avg: $10

551%

#464

Core i5-450M

MSRP: $32|Avg: $31

532%

#465

Core i3-380M

MSRP: $49|Avg: $25

510%

#466

Core i5-430M

MSRP: N/A|Avg: $33

509%

#467

Core 2 Duo T6600

MSRP: N/A|Avg: $4

496%

#470

Core i5-6287U

MSRP: N/A|Avg: N/A

100%

#472

Ryzen Embedded R1505G

MSRP: $80|Avg: $80

100%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i5-6287U leads in gaming performance. However, the Core i7-2840QM is the stronger candidate for professional workloads, offering 1.1% greater multi-core processing power.

Insight	Core i7-2840QM	Core i5-6287U
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	🛑 Legacy (Skylake (2015−2016) / 14 nm)

💎 Value Proposition

Insight	Core i7-2840QM	Core i5-6287U
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 i7-2840QM Benchmark Check

Core i5-6287U Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-2840QM and Core i5-6287U

Core i7-2840QM

The Core i7-2840QM is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Max frequency: 2.4 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 32 nm process technology. Socket: G2. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 3,842 points. Launch price was $69.

Core i5-6287U

The Core i5-6287U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 28 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 3,801 points. Launch price was $304.

⚡

Processing Power

The Core i7-2840QM packs 4 cores / 8 threads, while the Core i5-6287U offers 2 cores / 4 threads — the Core i7-2840QM has 2 more cores. Boost clocks reach 2.4 GHz on the Core i7-2840QM versus 3.5 GHz on the Core i5-6287U — a 37.3% clock advantage for the Core i5-6287U. The Core i7-2840QM uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i5-6287U uses Skylake (2015−2016) (14 nm). In PassMark, the Core i7-2840QM scores 3,842 against the Core i5-6287U's 3,801 — a 1.1% lead for the Core i7-2840QM. L3 cache: 8 MB on the Core i7-2840QM vs 4 MB on the Core i5-6287U.

Feature	Core i7-2840QM	Core i5-6287U
Cores / Threads	4 / 8+100%	2 / 4
Boost Clock	2.4 GHz	3.5 GHz+46%
Base Clock	—	3.1 GHz
L3 Cache	8 MB+100%	4 MB
L2 Cache	1 MB+100%	512 kB
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	Skylake (2015−2016)
PassMark	3,842+1%	3,801
Geekbench 6 Single	—	816

🧠

Memory & Platform

The Core i7-2840QM uses the G2 socket (PCIe 2.0), while the Core i5-6287U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-2840QM	Core i5-6287U
Socket	G2	BGA1356
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	—	DDR4-2133
Max RAM Capacity	—	32 GB
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	12

🔧

Advanced Features

Virtualization: not specified (Core i7-2840QM) / VT-x, VT-d, EPT (Core i5-6287U). The Core i5-6287U includes integrated graphics (Iris Graphics 550), while the Core i7-2840QM requires a dedicated GPU. Primary use case: Core i5-6287U targets High Performance Laptop. Direct competitor: Core i5-6287U rivals FX-9800P.