Athlon II X2 240e vs Core 2 Duo E8135

Athlon II X2 240e vs Core 2 Duo E8135 Performance Spectrum

Athlon II X2 240e

2 / 2

1,007

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Duo E8135

2 / 2

1,020

+1.3%

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 E8135 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 E8135: 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 $123 less on MSRP ($77 MSRP vs $200 MSRP).
✅Delivers 156.4% more PassMark for each dollar spent, at 13.1 vs 5.1 PassMark/$ ($77 MSRP vs $200 MSRP).
✅Includes a boxed cooler (true), unlike Core 2 Duo E8135.

Trade-offs

❌Worse for gaming: lower average FPS than Core 2 Duo E8135 across 50 shared CPU benchmark tests.
❌Lower PassMark (1,007 vs 1,020).

Core 2 Duo E8135

2009

Why buy it

✅Better for gaming: +3.9% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 44W instead of 45W, a 1W reduction.

Trade-offs

❌Lower PassMark per dollar, at 5.1 vs 13.1 PassMark/$ ($200 MSRP vs $77 MSRP).
❌No boxed cooler included, unlike Athlon II X2 240e.

Quick Answers

So, is Core 2 Duo E8135 better than Athlon II X2 240e?

Yes. Core 2 Duo E8135 is the better all-around CPU here. It gives you a 3.9% average FPS lead across 50 shared CPU game tests in our data, 1.3% 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, Core 2 Duo E8135 is the better pick. According to our tests, it delivers 3.9% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core 2 Duo E8135 is the stronger fit. You are getting 1.3% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Duo E8135 is still the much better call for a fresh build. Core 2 Duo E8135 comes in 159.7% more expensive on MSRP at $200 MSRP versus $77 MSRP, and it still gives you a 3.9% average FPS lead across 50 shared CPU game tests in our data. Athlon II X2 240e only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2009 platform. Even with 156.4% better value on paper (13.1 vs 5.1 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM3.

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

Core 2 Duo E8135 makes more sense long term for 2026 and beyond. You are getting 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 E8135 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 E8135

The Core 2 Duo E8135 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.667 GHz, with boost up to 0.67 GHz. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: P. Thermal design power (TDP): 44 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,020 points. Launch price was $249.

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Processing Power

Both the Athlon II X2 240e and Core 2 Duo E8135 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Athlon II X2 240e versus 0.67 GHz on the Core 2 Duo E8135 — a 122.8% clock advantage for the Athlon II X2 240e (base: 2.8 GHz vs 2.667 GHz). The Athlon II X2 240e uses the Regor (2009−2013) architecture (45 nm), while the Core 2 Duo E8135 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon II X2 240e scores 1,007 against the Core 2 Duo E8135's 1,020 — a 1.3% lead for the Core 2 Duo E8135.

Feature	Athlon II X2 240e	Core 2 Duo E8135
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+318%	0.67 GHz
Base Clock	2.8 GHz+5%	2.667 GHz
L3 Cache	0 kB	—
L2 Cache	1 MB	6 MB (total)+500%
Process	45 nm	45 nm
Architecture	Regor (2009−2013)	Penryn (2008−2011)
PassMark	1,007	1,020+1%

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Memory & Platform

The Athlon II X2 240e uses the AM3 socket (PCIe 2.0), while the Core 2 Duo E8135 uses P (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Athlon II X2 240e	Core 2 Duo E8135
Socket	AM3	P
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	1333	—
Max RAM Capacity	16	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

🔧

Advanced Features

Virtualization: true (Athlon II X2 240e) / not specified (Core 2 Duo E8135). Direct competitor: Athlon II X2 240e rivals Pentium E5400.

Feature	Athlon II X2 240e	Core 2 Duo E8135
Integrated GPU	No	—
IGPU Model	None	—
Unlocked	No	—
AVX-512	No	—
Virtualization	true	—

💰

Value Analysis

At launch, the Athlon II X2 240e was priced at $77, while the Core 2 Duo E8135 came in at $200. On launch pricing ($77 vs $200), Athlon II X2 240e was $123 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X2 240e delivers 13.1 pts/$ vs 5.1 pts/$ for the Core 2 Duo E8135 — making the Athlon II X2 240e the 87.8% better value option.

Feature	Athlon II X2 240e	Core 2 Duo E8135
MSRP	$77-62%	$200
Performance per Dollar	13.1+157%	5.1
Release Date	2009	2009

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