Athlon II X3 420e vs Xeon 5150

Athlon II X3 420e vs Xeon 5150 Performance Spectrum

Athlon II X3 420e

3 / 3

1,557

+0.1%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon 5150

2 / 2

1,555

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 X3 420e vs Xeon 5150 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 420e vs Xeon 5150: 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 420e

2010

Why buy it

✅+0.1% higher PassMark.
✅Draws 45W instead of 65W, a 20W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Stock), unlike Xeon 5150.

Trade-offs

❌Launch MSRP is still $107 MSRP, while Xeon 5150 mostly shows up through inconsistent older-market listings.

Xeon 5150

2006

Why buy it

Trade-offs

❌Lower PassMark (1,555 vs 1,557).
❌44.4% higher power demand at 65W vs 45W.
❌No boxed cooler included, unlike Athlon II X3 420e.

Quick Answers

So, is Athlon II X3 420e better than Xeon 5150?

Not really, because they are built for different jobs. Xeon 5150 makes more sense for workstation-style multi-core throughput, while Athlon II X3 420e is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Athlon II X3 420e is the stronger fit. You are getting 0.1% better PassMark, backed by 3 cores and 3 threads.

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

Athlon II X3 420e is the better buy right now. Athlon II X3 420e comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you 0.1% better PassMark. The compromise is that Xeon 5150 is still the better pure gaming CPU with a 0.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (14.6 vs 0.0 PassMark/$), 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 X3 420e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2006) and more multi-core headroom with 3 cores / 3 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 X3 420e vs Xeon 5150 Technical Specifications

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

Athlon II X3 420e

The Athlon II X3 420e is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 2.6 GHz, with boost up to 2.6 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: 1,557 points. Launch price was $116.

Xeon 5150

The Xeon 5150 is manufactured by Intel. It was released in Junho 2006 (19 years ago). It is based on the Woodcrest (2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.66 GHz, with boost up to 2.67 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 65 Watt. Memory support: DDR2. Passmark benchmark score: 1,555 points. Launch price was $16.

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Processing Power

The Athlon II X3 420e packs 3 cores / 3 threads, while the Xeon 5150 offers 2 cores / 2 threads — the Athlon II X3 420e has 1 more core. Boost clocks reach 2.6 GHz on the Athlon II X3 420e versus 2.67 GHz on the Xeon 5150 — a 2.7% clock advantage for the Xeon 5150 (base: 2.6 GHz vs 2.66 GHz). The Athlon II X3 420e uses the Rana (2009−2011) architecture (45 nm), while the Xeon 5150 uses Woodcrest (2006) (65 nm). In PassMark, the Athlon II X3 420e scores 1,557 against the Xeon 5150's 1,555 — a 0.1% lead for the Athlon II X3 420e. Both processors carry 0 kB of L3 cache.

Feature	Athlon II X3 420e	Xeon 5150
Cores / Threads	3 / 3+50%	2 / 2
Boost Clock	2.6 GHz	2.67 GHz+3%
Base Clock	2.6 GHz	2.66 GHz+2%
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	4 MB+700%
Process	45 nm-31%	65 nm
Architecture	Rana (2009−2011)	Woodcrest (2006)
PassMark	1,557	1,555
Geekbench 6 Single	314	—
Geekbench 6 Multi	880	—

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Memory & Platform

The Athlon II X3 420e uses the AM3 socket (PCIe 2.0), while the Xeon 5150 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Athlon II X3 420e	Xeon 5150
Socket	AM3	LGA771
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: AMD-V (Athlon II X3 420e) / not specified (Xeon 5150). Primary use case: Athlon II X3 420e targets Legacy Desktop. Direct competitor: Athlon II X3 420e rivals Athlon II X3 415e.