Athlon II Neo K125 vs Core 2 Duo E6540

Athlon II Neo K125

1 Cores1 Thrd1 WWMax: 1.7 GHz2010

Core 2 Duo E6540

2 Cores65 WW2007

Performance Spectrum - CPU

Athlon II Neo K125

1 / 1

1,491

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Duo E6540

2 /

1,495

+0.3%

Pentium U5600

Pentium Dual-Core E2200

Core 2 Duo E8400

Pentium Dual-Core E2220

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 Athlon II Neo K125 is positioned at rank 982 and the Core 2 Duo E6540 is on rank 1009, so the Athlon II Neo K125 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 Athlon II Neo K125

#970

Atom x5-Z8300

MSRP: $20|Avg: N/A

1968%

#971

Atom Z3735G

MSRP: $17|Avg: N/A

1939%

#972

Core i5-480M

MSRP: $81|Avg: $77

1780%

#973

Core i5-460M

MSRP: $80|Avg: $129

1772%

#974

Core i5-2540M

MSRP: $266|Avg: $10

1756%

#976

Core i5-450M

MSRP: $32|Avg: $31

1696%

#977

Core i3-380M

MSRP: $49|Avg: $25

1626%

#978

Core i5-430M

MSRP: N/A|Avg: $33

1623%

#979

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1579%

#982

Athlon II Neo K125

MSRP: $100|Avg: $100

100%

#986

Pro A8-8600B

MSRP: $150|Avg: $25

99%

#991

Pentium 8500

MSRP: $200|Avg: $200

97%

#992

A6-8500P

MSRP: $100|Avg: $16

97%

#994

Core i7-4700EQ

MSRP: $378|Avg: $180

96%

#995

Core i3-8145UE

MSRP: $281|Avg: $50

96%

#996

Core i7-4712MQ

MSRP: $378|Avg: $60

94%

#997

Core i7-3615QE

MSRP: $400|Avg: $100

94%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo E6540

Ryzen 9 7950X

MSRP: $194|Avg: $20

33993%

Core i9-10900T

MSRP: $120|Avg: $5

32120%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

23322%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

7026%

Ryzen 9 9950X

MSRP: $649|Avg: $129

5565%

Ryzen 5 8400F

MSRP: $303|Avg: $55

4868%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

2788%

Ryzen 5 2600X

MSRP: $229|Avg: $55

2752%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

2506%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

2506%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

2478%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

2411%

#13

Core i3-9100E

MSRP: $202|Avg: $30

2377%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

2367%

#15

Core i3-8300T

MSRP: $138|Avg: $25

2346%

#1009

Core 2 Duo E6540

MSRP: $163|Avg: $15

100%

#1010

Celeron 430

MSRP: $49|Avg: $10

100%

#1011

Athlon X2 BE-2300

MSRP: $100|Avg: $80

99%

#1012

Core i7-875K

MSRP: $353|Avg: $175

98%

#1013

Core i5-670

MSRP: $284|Avg: $100

98%

#1014

Core i5-680

MSRP: $294|Avg: $10

97%

#1015

Core 2 Duo E4300

MSRP: $113|Avg: $5

97%

#1017

Core 2 Duo E4500

MSRP: $133|Avg: $10

96%

#1019

Core 2 Duo E7600

MSRP: $133|Avg: $50

94%

#1020

Core 2 Duo E8700

MSRP: $256|Avg: $30

94%

#1021

Core i7-3970X

MSRP: $990|Avg: $60

94%

#1022

Core 2 Duo E6550

MSRP: $163|Avg: $20

93%

#1023

Phenom X3 8450

MSRP: $145|Avg: $147

92%

#1024

Core i7-3960X

MSRP: $999|Avg: $60

92%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Athlon II Neo K125 leads in gaming performance. However, the Core 2 Duo E6540 is the stronger candidate for professional workloads, offering 0.3% greater multi-core processing power.

Insight	Athlon II Neo K125	Core 2 Duo E6540
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($100)	✅ More affordable ($15)
Longevity	🛑 Legacy (Geneva (2010) / 45 nm)	🛑 Legacy (Legacy / 65 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Core 2 Duo E6540 stands out as the superior choice. It is effectively 85% cheaper ($15 vs $100) while identifying as the stronger performer.

Insight	Athlon II Neo K125	Core 2 Duo E6540
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+568%)
Upfront Cost	⚠️ Higher cost ($100)	✅ More affordable ($15)

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.

Athlon II Neo K125 Benchmark Check

Core 2 Duo E6540 Benchmark Check

Technical Specifications

Side-by-side comparison of Athlon II Neo K125 and Core 2 Duo E6540

Athlon II Neo K125

The Athlon II Neo K125 is manufactured by AMD. It was released in 2009-01-01. It is based on the Geneva (2010) architecture. It features 1 cores and 1 threads. Max frequency: 1.7 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1 MB. Memory support: DDR3. Passmark benchmark score: 1,491 points. Launch price was $149.

Core 2 Duo E6540

The Core 2 Duo E6540 is manufactured by Intel. It was released in 2008-01-01. It has 2 cores. Base frequency: 2.33 GHz. L3 cache: 4 MB L2 Cache. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,495 points. Launch price was $249.

⚡

Processing Power

The Athlon II Neo K125 packs 1 cores / 1 threads, while the Core 2 Duo E6540 offers 2 cores / 2 threads — the Core 2 Duo E6540 has 1 more core. The Athlon II Neo K125 is built on the Geneva (2010) architecture. In PassMark, the Athlon II Neo K125 scores 1,491 against the Core 2 Duo E6540's 1,495 — a 0.3% lead for the Core 2 Duo E6540.

Feature	Athlon II Neo K125	Core 2 Duo E6540
Cores / Threads	1 / 1	2+100%
Boost Clock	1.7 GHz	—
Base Clock	—	2.33 GHz
L3 Cache	—	4 MB L2 Cache
L2 Cache	1 MB	—
Process	45 nm-31%	65 nm
Architecture	Geneva (2010)	—
PassMark	1,491	1,495

🧠

Memory & Platform

The Athlon II Neo K125 uses the S1 socket (PCIe 2.0), while the Core 2 Duo E6540 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-800 on the Athlon II Neo K125 versus 1333 on the Core 2 Duo E6540 — the Core 2 Duo E6540 supports 199.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E6540 supports up to 16 of RAM compared to 4 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II Neo K125) vs 16 (Core 2 Duo E6540) — the Core 2 Duo E6540 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD ASB2 (Athlon II Neo K125) and P35,G31,G33,P45 (Core 2 Duo E6540).

Feature	Athlon II Neo K125	Core 2 Duo E6540
Socket	S1	LGA775
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-800	1333+44333%
Max RAM Capacity	4 GB+26214300%	16
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Athlon II Neo K125) / true (Core 2 Duo E6540). Direct competitor: Core 2 Duo E6540 rivals Athlon 64 X2 6000+.

Feature	Athlon II Neo K125	Core 2 Duo E6540
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	—	No
AVX-512	—	No
Virtualization	—	true

💰

Value Analysis

The Athlon II Neo K125 launched at $100 MSRP, while the Core 2 Duo E6540 debuted at $163. At current prices ($100 vs $15), the Core 2 Duo E6540 is $85 cheaper. In terms of value (PassMark points per dollar), the Athlon II Neo K125 delivers 14.9 pts/$ vs 99.7 pts/$ for the Core 2 Duo E6540 — making the Core 2 Duo E6540 the 147.9% better value option.