Athlon II X2 255 vs Pentium N3540

Athlon II X2 255 vs Pentium N3540 Performance Spectrum

Athlon II X2 255

2 / 2

1,210

+0.2%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Pentium N3540

4 / 4

1,207

0.0%

Celeron 1047UE

Celeron 877

Pentium Dual-Core E2180

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 255 vs Pentium N3540 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 255 vs Pentium N3540: 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 255

2010

Why buy it

✅Costs $101 less on MSRP ($60 MSRP vs $161 MSRP).
✅Delivers 169.0% more PassMark for each dollar spent, at 20.2 vs 7.5 PassMark/$ ($60 MSRP vs $161 MSRP).
✅Includes a boxed cooler (Stock), unlike Pentium N3540.

Trade-offs

❌3150% higher power demand at 65W vs 2W.

Pentium N3540

2014

Why buy it

✅Draws 2W instead of 65W, a 63W reduction.

Trade-offs

❌Lower PassMark (1,207 vs 1,210).
❌Lower PassMark per dollar, at 7.5 vs 20.2 PassMark/$ ($161 MSRP vs $60 MSRP).
❌No boxed cooler included, unlike Athlon II X2 255.

Quick Answers

So, is Athlon II X2 255 better than Pentium N3540?

Yes. Athlon II X2 255 is the better all-around CPU here. It gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data and 0.2% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Athlon II X2 255 is the better pick. According to our tests, it delivers 2.0% 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, Athlon II X2 255 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 255 is the better buy right now. Athlon II X2 255 comes in $101 cheaper on MSRP at $60 MSRP versus $161 MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data. It is also 169.0% better value on MSRP (20.2 vs 7.5 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium N3540 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2010). That makes it the safer long-term bet.

Athlon II X2 255 vs Pentium N3540 Technical Specifications

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

Athlon II X2 255

The Athlon II X2 255 is manufactured by AMD. It was released in 25 January 2010 (15 years ago). It is based on the Regor (2009−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,210 points. Launch price was $60.

Pentium N3540

The Pentium N3540 is manufactured by Intel. It was released in 22 May 2014 (11 years ago). It is based on the Bay Trail-M (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 2.16 GHz, with boost up to 2.66 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 7.5 Watt. Memory support: DDR3L-1333. Passmark benchmark score: 1,207 points. Launch price was $251.

⚡

Processing Power

The Athlon II X2 255 packs 2 cores / 2 threads, while the Pentium N3540 offers 4 cores / 4 threads — the Pentium N3540 has 2 more cores. Boost clocks reach 3.1 GHz on the Athlon II X2 255 versus 2.66 GHz on the Pentium N3540 — a 15.3% clock advantage for the Athlon II X2 255 (base: 3.1 GHz vs 2.16 GHz). The Athlon II X2 255 uses the Regor (2009−2013) architecture (45 nm), while the Pentium N3540 uses Bay Trail-M (2013−2014) (22 nm). In PassMark, the Athlon II X2 255 scores 1,210 against the Pentium N3540's 1,207 — a 0.2% lead for the Athlon II X2 255. L3 cache: 0 kB on the Athlon II X2 255 vs 2 MB L2 Cache on the Pentium N3540.

Feature	Athlon II X2 255	Pentium N3540
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	3.1 GHz+17%	2.66 GHz
Base Clock	3.1 GHz+44%	2.16 GHz
L3 Cache	0 kB	2 MB L2 Cache
L2 Cache	1 MB	2 MB+100%
Process	45 nm	22 nm-51%
Architecture	Regor (2009−2013)	Bay Trail-M (2013−2014)
PassMark	1,210	1,207
Geekbench 6 Single	265	—
Geekbench 6 Multi	500	—

🧠

Memory & Platform

The Athlon II X2 255 uses the AM3 socket (PCIe 2.0), while the Pentium N3540 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Athlon II X2 255	Pentium N3540
Socket	AM3	FCBGA1170
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	0	—

🔧

Advanced Features

Virtualization: AMD-V (Athlon II X2 255) / not specified (Pentium N3540). Primary use case: Athlon II X2 255 targets Legacy Desktop. Direct competitor: Athlon II X2 255 rivals Pentium E5700.

Feature	Athlon II X2 255	Pentium N3540
Integrated GPU	No	—
Unlocked	No	—
AVX-512	No	—
Virtualization	AMD-V	—
Target Use	Legacy Desktop	—

💰

Value Analysis

At launch, the Athlon II X2 255 was priced at $60, while the Pentium N3540 came in at $161. On launch pricing ($60 vs $161), Athlon II X2 255 was $101 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X2 255 delivers 20.2 pts/$ vs 7.5 pts/$ for the Pentium N3540 — making the Athlon II X2 255 the 91.6% better value option.

Feature	Athlon II X2 255	Pentium N3540
MSRP	$60-63%	$161
Performance per Dollar	20.2+169%	7.5
Release Date	2010	2014

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