Pentium Dual Core T3400 vs Core i7-840QM

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.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i7-840QM

#799

Atom x5-Z8300

MSRP: $20|Avg: N/A

1232%

#800

Atom Z3735G

MSRP: $17|Avg: N/A

1214%

#801

Core i5-480M

MSRP: $81|Avg: $77

1114%

#802

Core i5-460M

MSRP: $80|Avg: $129

1109%

#803

Core i5-2540M

MSRP: $266|Avg: $10

1099%

#805

Core i5-450M

MSRP: $32|Avg: $31

1061%

#806

Core i3-380M

MSRP: $49|Avg: $25

1018%

#807

Core i5-430M

MSRP: N/A|Avg: $33

1016%

#808

Core 2 Duo T6600

MSRP: N/A|Avg: $4

989%

#811

Athlon II Neo K345

MSRP: $50|Avg: $10

100%

#812

Core i7-840QM

MSRP: N/A|Avg: N/A

100%

#817

Core i7-8709G

MSRP: $338|Avg: $150

99%

#818

Celeron M 560

MSRP: $86|Avg: $10

98%

#823

Celeron Dual-Core T3000

MSRP: $80|Avg: $15

94%

#824

Pentium P6100

MSRP: $100|Avg: $16.39

94%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i7-840QM leads in gaming performance. However, the Pentium Dual Core T3400 is the stronger candidate for professional workloads, offering 0% greater multi-core processing power.

Insight	Pentium Dual Core T3400	Core i7-840QM
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($89)	✅ More affordable ($0)
Longevity	🛑 Legacy (NetBurst (2000−2006) / 65 nm)	🛑 Legacy (Clarksfield (2009−2010) / 45 nm)

💎 Value Proposition

Insight	Pentium Dual Core T3400	Core i7-840QM
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($89)	✅ 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.

Pentium Dual Core T3400 Benchmark Check

Core i7-840QM Benchmark Check

Technical Specifications

Side-by-side comparison of Pentium Dual Core T3400 and Core i7-840QM

Pentium Dual Core T3400

The Pentium Dual Core T3400 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Max frequency: 2.16 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,026 points. Launch price was $69.

Core i7-840QM

The Core i7-840QM is manufactured by Intel. It was released in 20 June 2010 (15 years ago). It is based on the Clarksfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 1.86 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 2,025 points. Launch price was $568.

⚡

Processing Power

The Pentium Dual Core T3400 packs 2 cores / 2 threads, while the Core i7-840QM offers 4 cores / 8 threads — the Core i7-840QM has 2 more cores. Boost clocks reach 2.16 GHz on the Pentium Dual Core T3400 versus 3.2 GHz on the Core i7-840QM — a 38.8% clock advantage for the Core i7-840QM. The Pentium Dual Core T3400 uses the NetBurst (2000−2006) architecture (65 nm), while the Core i7-840QM uses Clarksfield (2009−2010) (45 nm). In PassMark, the Pentium Dual Core T3400 scores 2,026 against the Core i7-840QM's 2,025 — a 0% lead for the Pentium Dual Core T3400.

Feature	Pentium Dual Core T3400	Core i7-840QM
Cores / Threads	2 / 2	4 / 8+100%
Boost Clock	2.16 GHz	3.2 GHz+48%
Base Clock	—	1.86 GHz
L3 Cache	—	8 MB (total)
L2 Cache	1 MB+300%	256 kB (per core)
Process	65 nm	45 nm-31%
Architecture	NetBurst (2000−2006)	Clarksfield (2009−2010)
PassMark	2,026	2,025
Geekbench 6 Single	—	390
Geekbench 6 Multi	—	1,050

🧠

Memory & Platform

The Pentium Dual Core T3400 uses the PGA478 socket (PCIe 1.1), while the Core i7-840QM uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard.