Core 2 Duo P8400 vs Core i5-4310U

Core 2 Duo P8400

2 Cores2 Thrd3 WWMax: 2.26 GHz2008

Core i5-4310U

2 Cores4 Thrd512 WWMax: 3 GHz2014

Performance Spectrum - CPU

Core 2 Duo P8400

2 / 2

2,497

0.0%

2,525

+1.1%

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 2 Duo P8400 is positioned at rank 33 and the Core i5-4310U is on rank 785, so the Core 2 Duo P8400 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 P8400

#10

Ryzen 7 260

MSRP: $199|Avg: $70

86%

#21

Atom x5-Z8300

MSRP: $20|Avg: N/A

176%

#22

Atom Z3735G

MSRP: $17|Avg: N/A

174%

#23

Core i5-480M

MSRP: $81|Avg: $77

159%

#24

Core i5-460M

MSRP: $80|Avg: $129

159%

#25

Core i5-2540M

MSRP: $266|Avg: $10

157%

#27

Core i5-450M

MSRP: $32|Avg: $31

152%

#28

Core i3-380M

MSRP: $49|Avg: $25

146%

#29

Core i5-430M

MSRP: N/A|Avg: $33

145%

#30

Core 2 Duo T6600

MSRP: N/A|Avg: $4

141%

#33

Core 2 Duo P8400

MSRP: $209|Avg: $10

100%

#38

Core 2 Duo T8100

MSRP: $209|Avg: $10

93%

#39

Atom 330

MSRP: $43|Avg: $30

92%

#43

Core 2 Duo SU7300

MSRP: $289|Avg: N/A

90%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-4310U

#773

Atom x5-Z8300

MSRP: $20|Avg: N/A

1162%

#774

Atom Z3735G

MSRP: $17|Avg: N/A

1145%

#775

Core i5-480M

MSRP: $81|Avg: $77

1051%

#776

Core i5-460M

MSRP: $80|Avg: $129

1046%

#777

Core i5-2540M

MSRP: $266|Avg: $10

1037%

#779

Core i5-450M

MSRP: $32|Avg: $31

1001%

#780

Core i3-380M

MSRP: $49|Avg: $25

960%

#781

Core i5-430M

MSRP: N/A|Avg: $33

958%

#782

Core 2 Duo T6600

MSRP: N/A|Avg: $4

933%

#785

Core i5-4310U

MSRP: N/A|Avg: N/A

100%

#790

Athlon 64 TF-20

MSRP: $50|Avg: $10

99%

#795

Core i3-1115G4E

MSRP: $213|Avg: $47

97%

#797

Celeron M 900

MSRP: $86|Avg: $10

97%

#799

Celeron B815

MSRP: $86|Avg: $15

96%

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 i5-4310U (2014) utilizes 22 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Core 2 Duo P8400	Core i5-4310U
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($10)	✅ More affordable ($0)
Longevity	🛑 Legacy (Penryn (2008−2011) / 45 nm)	🛑 Legacy (Haswell (2013−2015) / 22 nm)

💎 Value Proposition

The Core 2 Duo P8400 (2008) relies on 45 nm technology and older memory, placing it in a different performance category relative to modern standards.

Insight	Core 2 Duo P8400	Core i5-4310U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($10)	✅ 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 P8400 Benchmark Check

Core i5-4310U Benchmark Check

Technical Specifications

Side-by-side comparison of Core 2 Duo P8400 and Core i5-4310U

Core 2 Duo P8400

The Core 2 Duo P8400 is manufactured by Intel. It was released in 15 July 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.26 GHz, with boost up to 2.26 GHz. L3 cache: 3 MB L2 Cache. L2 cache: 3 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 25 Watt. Passmark benchmark score: 2,497 points. Launch price was $209.

Core i5-4310U

The Core i5-4310U is manufactured by Intel. It was released in 19 January 2014 (11 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 3 MB. L2 cache: 512 kB. Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,525 points. Launch price was $281.

⚡

Processing Power

The Core 2 Duo P8400 packs 2 cores / 2 threads, matching the Core i5-4310U's 2 cores. Boost clocks reach 2.26 GHz on the Core 2 Duo P8400 versus 3 GHz on the Core i5-4310U — a 28.1% clock advantage for the Core i5-4310U (base: 2.26 GHz vs 2 GHz). The Core 2 Duo P8400 uses the Penryn (2008−2011) architecture (45 nm), while the Core i5-4310U uses Haswell (2013−2015) (22 nm). In PassMark, the Core 2 Duo P8400 scores 2,497 against the Core i5-4310U's 2,525 — a 1.1% lead for the Core i5-4310U. L3 cache: 3 MB L2 Cache on the Core 2 Duo P8400 vs 3 MB on the Core i5-4310U.

Feature	Core 2 Duo P8400	Core i5-4310U
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.26 GHz	3 GHz+33%
Base Clock	2.26 GHz+13%	2 GHz
L3 Cache	3 MB L2 Cache	3 MB
L2 Cache	3 MB+500%	512 kB
Process	45 nm	22 nm-51%
Architecture	Penryn (2008−2011)	Haswell (2013−2015)
PassMark	2,497	2,525+1%

🧠

Memory & Platform

The Core 2 Duo P8400 uses the PGA478 socket (PCIe 1.1), while the Core i5-4310U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.