Athlon II X2 260u vs Core i5-540UM

Athlon II X2 260u vs Core i5-540UM Performance Spectrum

Athlon II X2 260u

2 / 2

990

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i5-540UM

2 / 4

1,002

+1.2%

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.

Athlon II X2 260u vs Core i5-540UM 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 260u vs Core i5-540UM: 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 260u

2009

Why buy it

✅Includes a boxed cooler (true), unlike Core i5-540UM.

Trade-offs

❌Lower PassMark (990 vs 1,002).
❌Launch MSRP is still $60 MSRP, while Core i5-540UM mostly shows up through inconsistent older-market listings.
❌38.9% higher power demand at 25W vs 18W.
❌No integrated graphics, while Core i5-540UM can still boot and troubleshoot without a discrete GPU.

Core i5-540UM

2010

Why buy it

✅Draws 18W instead of 25W, a 7W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Ironlake), while Athlon II X2 260u needs a discrete GPU.

Trade-offs

❌No boxed cooler included, unlike Athlon II X2 260u.

Quick Answers

So, is Core i5-540UM better than Athlon II X2 260u?

Yes. Core i5-540UM is the better all-around CPU here. It gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data, 1.2% 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, Core i5-540UM is the better pick. According to our tests, it delivers 1.7% 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 i5-540UM is the stronger fit. You are getting 1.2% better PassMark, backed by 2 cores and 4 threads.

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

Core i5-540UM is still the much better call for a fresh build. Core i5-540UM comes in at an unclear MSRP at unclear MSRP versus $60 MSRP, and it still gives you a 1.7% average FPS lead across 50 shared CPU game tests in our data. Athlon II X2 260u only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2009 platform. Even with 100.0% better value on paper (16.5 vs 0.0 PassMark/$), 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 i5-540UM makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2009) and more multi-core headroom with 2 cores / 4 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 260u vs Core i5-540UM Technical Specifications

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

Athlon II X2 260u

The Athlon II X2 260u 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. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 25 Watt. Memory support: DDR3. Passmark benchmark score: 990 points. Launch price was $83.

Core i5-540UM

The Core i5-540UM is manufactured by Intel. It was released in 24 May 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.2 GHz, with boost up to 2 GHz. L3 cache: 3 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,002 points. Launch price was $250.

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Processing Power

The Athlon II X2 260u packs 2 cores / 2 threads, matching the Core i5-540UM's 2 cores. Boost clocks reach 1.8 GHz on the Athlon II X2 260u versus 2 GHz on the Core i5-540UM — a 10.5% clock advantage for the Core i5-540UM. The Athlon II X2 260u uses the Regor (2009−2013) architecture (45 nm), while the Core i5-540UM uses Arrandale (2010−2011) (32 nm). In PassMark, the Athlon II X2 260u scores 990 against the Core i5-540UM's 1,002 — a 1.2% lead for the Core i5-540UM. L3 cache: 0 kB on the Athlon II X2 260u vs 3 MB on the Core i5-540UM.

Feature	Athlon II X2 260u	Core i5-540UM
Cores / Threads	2 / 2	2 / 4
Boost Clock	1.8 GHz	2 GHz+11%
Base Clock	—	1.2 GHz
L3 Cache	0 kB	3 MB
L2 Cache	1 MB+100%	512 kB
Process	45 nm	32 nm-29%
Architecture	Regor (2009−2013)	Arrandale (2010−2011)
PassMark	990	1,002+1%

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Memory & Platform

The Athlon II X2 260u uses the AM3 socket (PCIe 2.0), while the Core i5-540UM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Athlon II X2 260u versus 800 on the Core i5-540UM — the Athlon II X2 260u supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon II X2 260u supports up to 16 of RAM compared to 8 — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II X2 260u) vs 16 (Core i5-540UM) — the Core i5-540UM offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM2+,AM3 (Athlon II X2 260u) and HM55,HM57,QM57,QS57 (Core i5-540UM).

Feature	Athlon II X2 260u	Core i5-540UM
Socket	AM3	BGA1288
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	1333+67%	800
Max RAM Capacity	16+100%	8
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

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Advanced Features

Neither processor supports overclocking. Both support true virtualization. The Core i5-540UM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Athlon II X2 260u requires a dedicated GPU. Direct competitor: Athlon II X2 260u rivals Core 2 Duo SU9400; Core i5-540UM rivals Core 2 Duo SU9400.