Core 2 Duo T5900 vs Pentium 4405U

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 2 Duo T5900 is positioned at rank 19 and the Pentium 4405U is on rank 528, so the Core 2 Duo T5900 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 2 Duo T5900

#7

Atom x5-Z8300

MSRP: $20|Avg: N/A

138%

#8

Atom Z3735G

MSRP: $17|Avg: N/A

136%

#9

Core i5-480M

MSRP: $81|Avg: $77

125%

#10

Core i5-460M

MSRP: $80|Avg: $129

124%

#11

Core i5-2540M

MSRP: $266|Avg: $10

123%

#13

Core i5-450M

MSRP: $32|Avg: $31

119%

#14

Core i3-380M

MSRP: $49|Avg: $25

114%

#15

Core i5-430M

MSRP: N/A|Avg: $33

114%

#16

Core 2 Duo T6600

MSRP: N/A|Avg: $4

111%

#19

Core 2 Duo T5900

MSRP: N/A|Avg: $5

100%

#22

Core i3-3130M

MSRP: $225|Avg: N/A

90%

#23

Core 2 Duo T5550

MSRP: N/A|Avg: $5

86%

#24

Core 2 Duo T7100

MSRP: $197|Avg: $15

86%

#27

Pentium 2030M

MSRP: $134|Avg: N/A

82%

#28

Core 2 Duo T5750

MSRP: N/A|Avg: $8

82%

#29

Core 2 Duo T7200

MSRP: $286|Avg: $6

81%

#30

Core i5-3230M

MSRP: $225|Avg: $13

81%

#31

Atom D525

MSRP: $63|Avg: N/A

80%

#32

Atom x7835RE

MSRP: $127|Avg: N/A

80%

#33

Core 2 Duo P8400

MSRP: $209|Avg: $10

78%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium 4405U

#167

Core Ultra 7 258V

MSRP: $450|Avg: $400

99%

#169

Core i7-1280P

MSRP: $482|Avg: $482

98%

#516

Atom x5-Z8300

MSRP: $20|Avg: N/A

691%

#517

Atom Z3735G

MSRP: $17|Avg: N/A

681%

#518

Core i5-480M

MSRP: $81|Avg: $77

625%

#519

Core i5-460M

MSRP: $80|Avg: $129

623%

#520

Core i5-2540M

MSRP: $266|Avg: $10

617%

#522

Core i5-450M

MSRP: $32|Avg: $31

596%

#523

Core i3-380M

MSRP: $49|Avg: $25

571%

#524

Core i5-430M

MSRP: N/A|Avg: $33

570%

#525

Core 2 Duo T6600

MSRP: N/A|Avg: $4

555%

#528

Pentium 4405U

MSRP: N/A|Avg: N/A

100%

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 Pentium 4405U (2015) utilizes 14 nm technology and DDR3, DDR4, providing a fundamental performance advantage.

Insight	Core 2 Duo T5900	Pentium 4405U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($5)	✅ More affordable ($0)
Longevity	🛑 Legacy (Merom (2006−2008) / 65 nm)	🛑 Legacy (NetBurst (2000−2006) / 14 nm)

💎 Value Proposition

The Core 2 Duo T5900 (2008) relies on 65 nm technology and older memory, placing it in a different performance category relative to modern standards.

Insight	Core 2 Duo T5900	Pentium 4405U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($5)	✅ 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 2 Duo T5900 Benchmark Check

Pentium 4405U Benchmark Check

Technical Specifications

Side-by-side comparison of Core 2 Duo T5900 and Pentium 4405U

Core 2 Duo T5900

The Core 2 Duo T5900 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Max frequency: 2.2 GHz. L2 cache: 2 MB. Built on 65 nm process technology. Socket: P. Thermal design power (TDP): 2 MB. Passmark benchmark score: 2,123 points. Launch price was $249.

Pentium 4405U

The Pentium 4405U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,122 points. Launch price was $161.

⚡

Processing Power

The Core 2 Duo T5900 packs 2 cores / 2 threads, matching the Pentium 4405U's 2 cores. Boost clocks reach 2.2 GHz on the Core 2 Duo T5900 versus 2.1 GHz on the Pentium 4405U — a 4.7% clock advantage for the Core 2 Duo T5900. The Core 2 Duo T5900 uses the Merom (2006−2008) architecture (65 nm), while the Pentium 4405U uses NetBurst (2000−2006) (14 nm). In PassMark, the Core 2 Duo T5900 scores 2,123 against the Pentium 4405U's 2,122 — a 0% lead for the Core 2 Duo T5900.

Feature	Core 2 Duo T5900	Pentium 4405U
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.2 GHz+5%	2.1 GHz
Base Clock	—	2.1 GHz
L3 Cache	—	2 MB
L2 Cache	2 MB+300%	512 kB
Process	65 nm	14 nm-78%
Architecture	Merom (2006−2008)	NetBurst (2000−2006)
PassMark	2,123	2,122

🧠

Memory & Platform

The Core 2 Duo T5900 uses the P socket (PCIe 1.1), while the Pentium 4405U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.