Pentium Dual Core T4300 vs Core 2 Duo E6420

Pentium Dual Core T4300

2 Cores2 Thrd35 WWMax: 2.1 GHz2009

Core 2 Duo E6420

2 Cores2 Thrd65 WWMax: 2.13 GHz2007

Performance Spectrum - CPU

Pentium Dual Core T4300

2 / 2

1,232

0.0%

1,235

+0.2%

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 Pentium Dual Core T4300 is positioned at rank 1127 and the Core 2 Duo E6420 is on rank 1054, so the Core 2 Duo E6420 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 Pentium Dual Core T4300

#1115

Atom x5-Z8300

MSRP: $20|Avg: N/A

3574%

#1116

Atom Z3735G

MSRP: $17|Avg: N/A

3521%

#1117

Core i5-480M

MSRP: $81|Avg: $77

3233%

#1118

Core i5-460M

MSRP: $80|Avg: $129

3218%

#1119

Core i5-2540M

MSRP: $266|Avg: $10

3189%

#1121

Core i5-450M

MSRP: $32|Avg: $31

3079%

#1122

Core i3-380M

MSRP: $49|Avg: $25

2952%

#1123

Core i5-430M

MSRP: N/A|Avg: $33

2948%

#1124

Core 2 Duo T6600

MSRP: N/A|Avg: $4

2868%

#1127

Pentium Dual Core T4300

MSRP: $150|Avg: $99

100%

#1128

Core i3-4100E

MSRP: $225|Avg: $30

100%

#1129

Core i7-3520M

MSRP: $346|Avg: N/A

100%

#1130

Core i3-2310E

MSRP: $225|Avg: $20

100%

#1131

Core i5-2510E

MSRP: $230|Avg: $30

100%

#1132

Core m5-6Y54

MSRP: $281|Avg: $281

99%

#1134

Core i3-2330E

MSRP: $225|Avg: $10

99%

#1135

Core i5-4288U

MSRP: $342|Avg: N/A

95%

#1136

Core m3-6Y30

MSRP: $281|Avg: $281

95%

#1137

Core i3-2340UE

MSRP: $200|Avg: $200

94%

#1138

Core i7-2820QM

MSRP: $568|Avg: N/A

94%

#1139

Core i5-520M

MSRP: $225|Avg: N/A

94%

#1141

Celeron 807

MSRP: $70|Avg: $10

93%

#1142

Pentium B950

MSRP: $134|Avg: $35

93%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo E6420

Ryzen 9 7950X

MSRP: $194|Avg: $20

46180%

Core i9-10900T

MSRP: $120|Avg: $5

43636%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

31683%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

9545%

Ryzen 9 9950X

MSRP: $649|Avg: $129

7560%

Ryzen 5 8400F

MSRP: $303|Avg: $55

6614%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

3788%

Ryzen 5 2600X

MSRP: $229|Avg: $55

3739%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

3404%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

3404%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

3366%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

3275%

#13

Core i3-9100E

MSRP: $202|Avg: $30

3229%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

3216%

#15

Core i3-8300T

MSRP: $138|Avg: $25

3187%

#1054

Core 2 Duo E6420

MSRP: $183|Avg: $10

100%

#1055

Phenom X4 9600B

MSRP: $278|Avg: $20

98%

#1056

Pentium D 940

MSRP: $132|Avg: $15

98%

#1057

Phenom II X3 B77

MSRP: $281|Avg: $35

97%

#1058

Core 2 Duo E6300

MSRP: $163|Avg: $5

96%

#1059

Core 2 Duo E6400

MSRP: $183|Avg: $10

95%

#1060

Core 2 Duo E8300

MSRP: $163|Avg: $20

94%

#1061

Phenom X4 9500

MSRP: $247|Avg: $30

94%

#1062

Celeron D 352

MSRP: $69|Avg: $15

90%

#1063

Core i7-970

MSRP: $1083|Avg: $289

90%

#1064

Core i7-880

MSRP: $583|Avg: $40

87%

#1065

Pentium D 820

MSRP: $241|Avg: $20

87%

#1066

Celeron 2.10

MSRP: $49|Avg: $49

86%

#1067

Core i7-950

MSRP: $562|Avg: $15

86%

#1068

Sempron 3100+

MSRP: $65|Avg: $15

85%

#1069

Athlon II X4 635

MSRP: $400|Avg: $250

83%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Core 2 Duo E6420 delivers superior performance across the board. It outperforms the Pentium Dual Core T4300 in both compute-intensive tasks (0.2% faster) and gaming workloads.

Insight	Pentium Dual Core T4300	Core 2 Duo E6420
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($99)	✅ More affordable ($10)
Longevity	🛑 Legacy (NetBurst (2000−2006) / 45 nm)	🛑 Legacy (Conroe (2006−2007) / 65 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Core 2 Duo E6420 stands out as the superior choice. It is effectively 90% cheaper ($10 vs $99) while identifying as the stronger performer.

Insight	Pentium Dual Core T4300	Core 2 Duo E6420
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+892%)
Upfront Cost	⚠️ Higher cost ($99)	✅ More affordable ($10)

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 T4300 Benchmark Check

Core 2 Duo E6420 Benchmark Check

Technical Specifications

Side-by-side comparison of Pentium Dual Core T4300 and Core 2 Duo E6420

Pentium Dual Core T4300

The Pentium Dual Core T4300 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. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: P. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,232 points. Launch price was $69.

Core 2 Duo E6420

The Core 2 Duo E6420 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,235 points. Launch price was $249.

⚡

Processing Power

Both the Pentium Dual Core T4300 and Core 2 Duo E6420 share an identical 2-core/2-thread configuration. Boost clocks reach 2.1 GHz on the Pentium Dual Core T4300 versus 2.13 GHz on the Core 2 Duo E6420 — a 1.4% clock advantage for the Core 2 Duo E6420 (base: 2.1 GHz vs 2.13 GHz). The Pentium Dual Core T4300 uses the NetBurst (2000−2006) architecture (45 nm), while the Core 2 Duo E6420 uses Conroe (2006−2007) (65 nm). In PassMark, the Pentium Dual Core T4300 scores 1,232 against the Core 2 Duo E6420's 1,235 — a 0.2% lead for the Core 2 Duo E6420. Both processors carry 0 kB of L3 cache.

Feature	Pentium Dual Core T4300	Core 2 Duo E6420
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.1 GHz	2.13 GHz+1%
Base Clock	2.1 GHz	2.13 GHz+1%
L3 Cache	0 kB	0 kB
L2 Cache	1 MB	4 MB+300%
Process	45 nm-31%	65 nm
Architecture	NetBurst (2000−2006)	Conroe (2006−2007)
PassMark	1,232	1,235

🧠

Memory & Platform

The Pentium Dual Core T4300 uses the P socket (PCIe 1.1), while the Core 2 Duo E6420 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-800 on the Pentium Dual Core T4300 versus 1066 on the Core 2 Duo E6420 — the Core 2 Duo E6420 supports 198.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E6420 supports up to 16 of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Pentium Dual Core T4300) vs 16 (Core 2 Duo E6420) — the Core 2 Duo E6420 offers 16 more lanes for additional GPUs or NVMe drives.

Feature	Pentium Dual Core T4300	Core 2 Duo E6420
Socket	P	LGA775
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR3-800	1066+35433%
Max RAM Capacity	8 GB+52428700%	16
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	0	16

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: No VT-x (Pentium Dual Core T4300) vs true (Core 2 Duo E6420). Primary use case: Pentium Dual Core T4300 targets Mobile. Direct competitor: Core 2 Duo E6420 rivals Athlon 64 X2 5400+.

Feature	Pentium Dual Core T4300	Core 2 Duo E6420
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	No	No
AVX-512	No	No
Virtualization	No VT-x	true
Target Use	Mobile	—

💰

Value Analysis

The Pentium Dual Core T4300 launched at $150 MSRP, while the Core 2 Duo E6420 debuted at $183. At current prices ($99 vs $10), the Core 2 Duo E6420 is $89 cheaper. In terms of value (PassMark points per dollar), the Pentium Dual Core T4300 delivers 12.4 pts/$ vs 123.5 pts/$ for the Core 2 Duo E6420 — making the Core 2 Duo E6420 the 163.4% better value option.