Core i7-8665U vs Core i5-8250U

CPU

GPU

Core i7-8665U

4 Cores8 Thrd15 WWMax: 4.8 GHz2019

Core i5-8250U

4 Cores8 Thrd15 WWMax: 3.4 GHz2017

Performance Spectrum - CPU

Core i7-8665U

4 / 8

6,202

+0.7%

6,158

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 i7-8665U is positioned at rank 544 and the Core i5-8250U is on rank 860, so the Core i7-8665U 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 i7-8665U

#173

Core Ultra 5 238V

MSRP: $454|Avg: $454

97%

#532

Atom x5-Z8300

MSRP: $20|Avg: N/A

710%

#533

Atom Z3735G

MSRP: $17|Avg: N/A

699%

#534

Core i5-480M

MSRP: $81|Avg: $77

642%

#535

Core i5-460M

MSRP: $80|Avg: $129

639%

#536

Core i5-2540M

MSRP: $266|Avg: $10

633%

#538

Core i5-450M

MSRP: $32|Avg: $31

611%

#539

Core i3-380M

MSRP: $49|Avg: $25

586%

#540

Core i5-430M

MSRP: N/A|Avg: $33

585%

#541

Core 2 Duo T6600

MSRP: N/A|Avg: $4

570%

#544

Core i7-8665U

MSRP: N/A|Avg: N/A

100%

#549

Celeron Dual-Core T1500

MSRP: N/A|Avg: $49

98%

#557

Pentium P6200

MSRP: $60|Avg: $25

96%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-8250U

#848

Atom x5-Z8300

MSRP: $20|Avg: N/A

1415%

#849

Atom Z3735G

MSRP: $17|Avg: N/A

1395%

#850

Core i5-480M

MSRP: $81|Avg: $77

1280%

#851

Core i5-460M

MSRP: $80|Avg: $129

1274%

#852

Core i5-2540M

MSRP: $266|Avg: $10

1263%

#854

Core i5-450M

MSRP: $32|Avg: $31

1219%

#855

Core i3-380M

MSRP: $49|Avg: $25

1169%

#856

Core i5-430M

MSRP: N/A|Avg: $33

1167%

#857

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1136%

#860

Core i5-8250U

MSRP: N/A|Avg: N/A

100%

#863

Pentium Dual Core T2390

MSRP: $86|Avg: $5

99%

#867

Core i7-1160G7

MSRP: $426|Avg: N/A

99%

#873

Celeron M 540

MSRP: $86|Avg: $20

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Core i7-8665U delivers superior performance across the board. It outperforms the Core i5-8250U in both compute-intensive tasks (0.7% faster) and gaming workloads.

Insight	Core i7-8665U	Core i5-8250U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm)	✨ Modern (Kaby Lake Refresh (2017−2019) / 14 nm)

💎 Value Proposition

Insight	Core i7-8665U	Core i5-8250U
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 i7-8665U Benchmark Check

Core i5-8250U Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-8665U and Core i5-8250U

Core i7-8665U

The Core i7-8665U is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.9 GHz, with boost up to 4.8 GHz. L3 cache: 8 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: 6,202 points. Launch price was $409.

Core i5-8250U

The Core i5-8250U is manufactured by Intel. It was released in 21 August 2017 (8 years ago). It is based on the Kaby Lake Refresh (2017−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.6 GHz, with boost up to 3.4 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 6,158 points. Launch price was $297.

⚡

Processing Power

Both the Core i7-8665U and Core i5-8250U share an identical 4-core/8-thread configuration. Boost clocks reach 4.8 GHz on the Core i7-8665U versus 3.4 GHz on the Core i5-8250U — a 34.1% clock advantage for the Core i7-8665U (base: 1.9 GHz vs 1.6 GHz). The Core i7-8665U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Core i5-8250U uses Kaby Lake Refresh (2017−2019) (14 nm). In PassMark, the Core i7-8665U scores 6,202 against the Core i5-8250U's 6,158 — a 0.7% lead for the Core i7-8665U. L3 cache: 8 MB (total) on the Core i7-8665U vs 6 MB (total) on the Core i5-8250U.

Feature	Core i7-8665U	Core i5-8250U
Cores / Threads	4 / 8	4 / 8
Boost Clock	4.8 GHz+41%	3.4 GHz
Base Clock	1.9 GHz+19%	1.6 GHz
L3 Cache	8 MB (total)+33%	6 MB (total)
L2 Cache	256 kB (per core)	256K (per core)
Process	14 nm	14 nm
Architecture	Whiskey Lake-U (2018−2019)	Kaby Lake Refresh (2017−2019)
PassMark	6,202	6,158
Geekbench 6 Single	—	1,127

🧠

Memory & Platform

The Core i7-8665U uses the FCBGA1528 socket (PCIe 3.0), while the Core i5-8250U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-8665U	Core i5-8250U
Socket	FCBGA1528	BGA1356
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	—	DDR4-2400
Max RAM Capacity	—	32 GB
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	12

🔧

Advanced Features

Virtualization: not specified (Core i7-8665U) / VT-x, VT-d, EPT (Core i5-8250U). The Core i5-8250U includes integrated graphics (UHD Graphics 620), while the Core i7-8665U requires a dedicated GPU. Primary use case: Core i5-8250U targets Mainstream Laptop. Direct competitor: Core i5-8250U rivals Ryzen 5 2500U.