Core i5-660 vs Core i5-4350U

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 i5-660 is positioned at rank 954 and the Core i5-4350U is on rank 463, so the Core i5-4350U 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 i5-660

#1

Ryzen 9 7950X

MSRP: $194|Avg: $20

25057%

#2

Core i9-10900T

MSRP: $120|Avg: $5

23677%

#3

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

17191%

#4

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

5179%

#5

Ryzen 9 9950X

MSRP: $649|Avg: $129

4102%

#6

Ryzen 5 8400F

MSRP: $303|Avg: $55

3589%

#7

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

2055%

#8

Ryzen 5 2600X

MSRP: $229|Avg: $55

2029%

#9

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1847%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1847%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1826%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1777%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1752%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1745%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1729%

#954

Core i5-660

MSRP: $196|Avg: $150

100%

#955

Athlon II X2 250

MSRP: $87|Avg: $15

100%

#956

Core i3-2120T

MSRP: $127|Avg: $38

99%

#957

Phenom II X3 720

MSRP: $130|Avg: $64

99%

#958

Pentium E6300

MSRP: $84|Avg: $15

99%

#959

Core i5-661

MSRP: $196|Avg: $40

98%

#960

Core i3-4150

MSRP: $281|Avg: $70

97%

#961

Core i5-750

MSRP: $210|Avg: $30

97%

#962

Core i3-2100T

MSRP: $127|Avg: $127

97%

#963

Pentium E2210

MSRP: $84|Avg: $15

96%

#964

Core i3-560

MSRP: $138|Avg: $10

96%

#965

Core i3-550

MSRP: $138|Avg: $5

95%

#966

Core i7-980

MSRP: $583|Avg: $50

95%

#967

Pentium G3250

MSRP: $171|Avg: $25

94%

#968

Pentium E2200

MSRP: $84|Avg: $5

94%

#969

Core 2 Duo E7300

MSRP: $133|Avg: $133

94%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-4350U

#144

Core i7-12650H

MSRP: $457|Avg: N/A

98%

#451

Atom x5-Z8300

MSRP: $20|Avg: N/A

605%

#452

Atom Z3735G

MSRP: $17|Avg: N/A

596%

#453

Core i5-480M

MSRP: $81|Avg: $77

547%

#454

Core i5-460M

MSRP: $80|Avg: $129

545%

#455

Core i5-2540M

MSRP: $266|Avg: $10

540%

#457

Core i5-450M

MSRP: $32|Avg: $31

521%

#458

Core i3-380M

MSRP: $49|Avg: $25

500%

#459

Core i5-430M

MSRP: N/A|Avg: $33

499%

#460

Core 2 Duo T6600

MSRP: N/A|Avg: $4

486%

#463

Core i5-4350U

MSRP: N/A|Avg: N/A

100%

#472

Ryzen Embedded R1505G

MSRP: $80|Avg: $80

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Core i5-660 delivers superior performance across the board. It outperforms the Core i5-4350U in both compute-intensive tasks (0.6% faster) and gaming workloads.

Insight	Core i5-660	Core i5-4350U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($150)	✅ More affordable ($0)
Longevity	🛑 Legacy (Clarkdale (2010−2011) / 32 nm)	🛑 Legacy (Haswell (2013−2015) / 22 nm)

💎 Value Proposition

Insight	Core i5-660	Core i5-4350U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($150)	✅ More affordable ($0)

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 i5-660 Benchmark Check

Core i5-4350U Benchmark Check

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Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-660 and Core i5-4350U

Core i5-660

The Core i5-660 is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Clarkdale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 3.33 GHz, with boost up to 3.6 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1156. Thermal design power (TDP): 73 Watt. Memory support: DDR3. Passmark benchmark score: 2,439 points. Launch price was $70.

Core i5-4350U

The Core i5-4350U is manufactured by Intel. It was released in 4 June 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.4 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,425 points. Launch price was $342.

⚡

Processing Power

Both the Core i5-660 and Core i5-4350U share an identical 2-core/4-thread configuration. Boost clocks reach 3.6 GHz on the Core i5-660 versus 2.9 GHz on the Core i5-4350U — a 21.5% clock advantage for the Core i5-660 (base: 3.33 GHz vs 1.4 GHz). The Core i5-660 uses the Clarkdale (2010−2011) architecture (32 nm), while the Core i5-4350U uses Haswell (2013−2015) (22 nm). In PassMark, the Core i5-660 scores 2,439 against the Core i5-4350U's 2,425 — a 0.6% lead for the Core i5-660. L3 cache: 4 MB (total) on the Core i5-660 vs 3 MB (total) on the Core i5-4350U.

Feature	Core i5-660	Core i5-4350U
Cores / Threads	2 / 4	2 / 4
Boost Clock	3.6 GHz+24%	2.9 GHz
Base Clock	3.33 GHz+138%	1.4 GHz
L3 Cache	4 MB (total)+33%	3 MB (total)
L2 Cache	256 kB (per core)	256K (per core)
Process	32 nm	22 nm-31%
Architecture	Clarkdale (2010−2011)	Haswell (2013−2015)
PassMark	2,439	2,425

🧠

Memory & Platform

The Core i5-660 uses the LGA1156 socket (PCIe 2.0), while the Core i5-4350U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.