Athlon II X3 425e vs Core i5-2520M

Athlon II X3 425e vs Core i5-2520M Performance Spectrum

Athlon II X3 425e

3 / 3

2,239

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core i5-2520M

2 / 4

2,241

+0.1%

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 X3 425e vs Core i5-2520M 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 X3 425e vs Core i5-2520M: 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 X3 425e

2011

Why buy it

✅Costs $146 less on MSRP ($79 MSRP vs $225 MSRP).
✅Delivers 184.6% more PassMark for each dollar spent, at 28.3 vs 10.0 PassMark/$ ($79 MSRP vs $225 MSRP).

Trade-offs

❌Lower PassMark (2,239 vs 2,241).
❌28.6% higher power demand at 45W vs 35W.
❌No integrated graphics, while Core i5-2520M can still boot and troubleshoot without a discrete GPU.

Core i5-2520M

2011

Why buy it

✅Draws 35W instead of 45W, a 10W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 3000, while Athlon II X3 425e needs a discrete GPU.

Trade-offs

❌Lower PassMark per dollar, at 10.0 vs 28.3 PassMark/$ ($225 MSRP vs $79 MSRP).

Quick Answers

So, is Core i5-2520M better than Athlon II X3 425e?

Yes. Core i5-2520M is the better all-around CPU here. It gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data and 0.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-2520M is the better pick. According to our tests, it delivers 1.3% 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 i5-2520M is the stronger fit. You are getting 0.1% better PassMark, backed by 2 cores and 4 threads.

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

Core i5-2520M is still the much better call for a fresh build. Core i5-2520M comes in 184.8% more expensive on MSRP at $225 MSRP versus $79 MSRP, and it still gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data. Athlon II X3 425e only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 184.6% better value on paper (28.3 vs 10.0 PassMark/$), 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 i5-2520M is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Athlon II X3 425e vs Core i5-2520M Technical Specifications

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

Athlon II X3 425e

The Athlon II X3 425e is manufactured by AMD. It was released in 2009-01-01. It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 2,239 points. Launch price was $149.

Core i5-2520M

The Core i5-2520M is manufactured by Intel. It was released in 1 February 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 3.2 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,241 points. Launch price was $225.

⚡

Processing Power

The Athlon II X3 425e packs 3 cores / 3 threads, while the Core i5-2520M offers 2 cores / 4 threads — the Athlon II X3 425e has 1 more core. Boost clocks reach 2.7 GHz on the Athlon II X3 425e versus 3.2 GHz on the Core i5-2520M — a 16.9% clock advantage for the Core i5-2520M (base: 2.7 GHz vs 2.5 GHz). The Athlon II X3 425e uses the Rana (2009−2011) architecture (45 nm), while the Core i5-2520M uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Athlon II X3 425e scores 2,239 against the Core i5-2520M's 2,241 — a 0.1% lead for the Core i5-2520M. L3 cache: 0 kB on the Athlon II X3 425e vs 3 MB (total) on the Core i5-2520M.

Feature	Athlon II X3 425e	Core i5-2520M
Cores / Threads	3 / 3+50%	2 / 4
Boost Clock	2.7 GHz	3.2 GHz+19%
Base Clock	2.7 GHz+8%	2.5 GHz
L3 Cache	0 kB	3 MB (total)
L2 Cache	512 kB (per core)+100%	256K (per core)
Process	45 nm	32 nm-29%
Architecture	Rana (2009−2011)	Sandy Bridge (2011−2013)
PassMark	2,239	2,241

🧠

Memory & Platform

The Athlon II X3 425e uses the AM3 socket (PCIe 2.0), while the Core i5-2520M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. The Athlon II X3 425e supports up to 32 GB of RAM compared to 16 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II X3 425e) vs 16 (Core i5-2520M) — the Core i5-2520M offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD AM3 (Athlon II X3 425e) and HM65,HM67,QM67,QS67 (Core i5-2520M).

Feature	Athlon II X3 425e	Core i5-2520M
Socket	AM3	PGA988
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	1333
Max RAM Capacity	32 GB+100%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Athlon II X3 425e) / true (Core i5-2520M). The Core i5-2520M includes integrated graphics (Intel HD Graphics 3000), while the Athlon II X3 425e requires a dedicated GPU. Direct competitor: Core i5-2520M rivals Phenom II Black Edition N660.

Feature	Athlon II X3 425e	Core i5-2520M
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics 3000
Unlocked	—	No
AVX-512	—	No
Virtualization	—	true

💰

Value Analysis

At launch, the Athlon II X3 425e was priced at $79, while the Core i5-2520M came in at $225. On launch pricing ($79 vs $225), Athlon II X3 425e was $146 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X3 425e delivers 28.3 pts/$ vs 10.0 pts/$ for the Core i5-2520M — making the Athlon II X3 425e the 96% better value option.

Feature	Athlon II X3 425e	Core i5-2520M
MSRP	$79-65%	$225
Performance per Dollar	28.3+183%	10.0
Release Date	2011	2011

Search Athlon II X3 425e on Amazon

Search Core i5-2520M on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.