Athlon II X2 240e vs Core 2 Duo E4300

Athlon II X2 240e vs Core 2 Duo E4300 Performance Spectrum

Athlon II X2 240e

2 / 2

1,007

+0.2%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Duo E4300

2 / 2

1,005

0.0%

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.

Athlon II X2 240e vs Core 2 Duo E4300 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Athlon II X2 240e vs Core 2 Duo E4300: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Athlon II X2 240e

2009

Why buy it

✅Costs $36 less on MSRP ($77 MSRP vs $113 MSRP).
✅Delivers 47.0% more PassMark for each dollar spent, at 13.1 vs 8.9 PassMark/$ ($77 MSRP vs $113 MSRP).
✅Draws 45W instead of 65W, a 20W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Core 2 Duo E4300

2006

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (1,005 vs 1,007).
❌Lower PassMark per dollar, at 8.9 vs 13.1 PassMark/$ ($113 MSRP vs $77 MSRP).
❌44.4% higher power demand at 65W vs 45W.

Quick Answers

So, is Athlon II X2 240e better than Core 2 Duo E4300?

Yes. Athlon II X2 240e is the better all-around CPU here. It gives you 0.2% better PassMark and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Athlon II X2 240e has the edge because it leads the single-thread side of this matchup with 55.6% higher max boost clock.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Athlon II X2 240e is the stronger fit. You are getting 0.2% better PassMark, backed by 2 cores and 2 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Athlon II X2 240e is the better buy right now. Athlon II X2 240e comes in $36 cheaper on MSRP at $77 MSRP versus $113 MSRP, and it still gives you 0.2% higher PassMark. It is also 47.0% better value on MSRP (13.1 vs 8.9 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Athlon II X2 240e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2006) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon II X2 240e vs Core 2 Duo E4300 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Athlon II X2 240e

The Athlon II X2 240e is manufactured by AMD. It was released in 20 October 2009 (16 years ago). It is based on the Regor (2009−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 1,007 points. Launch price was $35.

Core 2 Duo E4300

The Core 2 Duo E4300 is manufactured by Intel. It was released in 2008-01-01. It is based on the Allendale (2006−2009) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,005 points. Launch price was $249.

⚡

Processing Power

Both the Athlon II X2 240e and Core 2 Duo E4300 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Athlon II X2 240e versus 1.8 GHz on the Core 2 Duo E4300 — a 43.5% clock advantage for the Athlon II X2 240e (base: 2.8 GHz vs 1.8 GHz). The Athlon II X2 240e uses the Regor (2009−2013) architecture (45 nm), while the Core 2 Duo E4300 uses Allendale (2006−2009) (65 nm). In PassMark, the Athlon II X2 240e scores 1,007 against the Core 2 Duo E4300's 1,005 — a 0.2% lead for the Athlon II X2 240e. Both processors carry 0 kB of L3 cache.

Feature	Athlon II X2 240e	Core 2 Duo E4300
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+56%	1.8 GHz
Base Clock	2.8 GHz+56%	1.8 GHz
L3 Cache	0 kB	0 kB
L2 Cache	1 MB	2 MB+100%
Process	45 nm-31%	65 nm
Architecture	Regor (2009−2013)	Allendale (2006−2009)
PassMark	1,007	1,005

🧠

Memory & Platform

The Athlon II X2 240e uses the AM3 socket (PCIe 2.0), while the Core 2 Duo E4300 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Athlon II X2 240e versus 800 on the Core 2 Duo E4300 — the Athlon II X2 240e supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 16 of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II X2 240e) vs 16 (Core 2 Duo E4300) — the Core 2 Duo E4300 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM2+,AM3 (Athlon II X2 240e) and P35,G31,G33,P45 (Core 2 Duo E4300).

Feature	Athlon II X2 240e	Core 2 Duo E4300
Socket	AM3	LGA775
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	1333+67%	800
Max RAM Capacity	16	16
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: true (Athlon II X2 240e) vs false (Core 2 Duo E4300). Direct competitor: Athlon II X2 240e rivals Pentium E5400; Core 2 Duo E4300 rivals Athlon 64 X2 3800+.

Feature	Athlon II X2 240e	Core 2 Duo E4300
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	No	No
Virtualization	true	false

💰

Value Analysis

At launch, the Athlon II X2 240e was priced at $77, while the Core 2 Duo E4300 came in at $113. On launch pricing ($77 vs $113), Athlon II X2 240e was $36 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X2 240e delivers 13.1 pts/$ vs 8.9 pts/$ for the Core 2 Duo E4300 — making the Athlon II X2 240e the 38.1% better value option.

Feature	Athlon II X2 240e	Core 2 Duo E4300
MSRP	$77-32%	$113
Performance per Dollar	13.1+47%	8.9
Release Date	2009	2006

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