A9-9420e vs Xeon 5120

A9-9420e vs Xeon 5120 Performance Spectrum

A9-9420e

2 / 2

1,101

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon 5120

2 / 2

1,115

+1.3%

Pentium D 830

Pentium T2370

Pentium T3400

Pentium Dual-Core E2200

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.

A9-9420e vs Xeon 5120 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.

A9-9420e vs Xeon 5120: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

A9-9420e

2018

Why buy it

✅Draws 1W instead of 65W, a 64W reduction.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon R5 Graphics, while Xeon 5120 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,101 vs 1,115).

Xeon 5120

2006

Why buy it

✅+1.3% higher PassMark.

Trade-offs

❌Launch MSRP is still $107 MSRP, while A9-9420e mostly shows up through inconsistent older-market listings.
❌6400% higher power demand at 65W vs 1W.
❌No integrated graphics, while A9-9420e can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is A9-9420e better than Xeon 5120?

Not really, because they are built for different jobs. Xeon 5120 makes more sense for workstation-style multi-core throughput, while A9-9420e 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, Xeon 5120 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?

A9-9420e is still the faster CPU overall, but Xeon 5120 is easier to justify if budget matters more than peak performance. A9-9420e comes in at an unclear MSRP at unclear MSRP versus $107 MSRP, and it still gives you 33.7% higher max boost clock. The compromise is that Xeon 5120 is still stronger for heavier multi-core work with 1.3% better PassMark. Xeon 5120 is also 100.0% better value on MSRP (10.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

A9-9420e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2006). That makes it the safer long-term bet.

A9-9420e vs Xeon 5120 Technical Specifications

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

A9-9420e

The A9-9420e is manufactured by AMD. It was released in 1 June 2018 (7 years ago). It is based on the Stoney Ridge (2016−2019) architecture. It features 2 cores and 2 threads. Max frequency: 2.5 GHz. L2 cache: 1 MB. Built on 28 nm process technology. Socket: BGA. Thermal design power (TDP): 1 MB. Memory support: DDR4. Passmark benchmark score: 1,101 points. Launch price was $69.

Xeon 5120

The Xeon 5120 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 1.86 GHz, with boost up to 1.87 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: 1,115 points. Launch price was $45.

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Processing Power

Both the A9-9420e and Xeon 5120 share an identical 2-core/2-thread configuration. Boost clocks reach 2.5 GHz on the A9-9420e versus 1.87 GHz on the Xeon 5120 — a 28.8% clock advantage for the A9-9420e. The A9-9420e uses the Stoney Ridge (2016−2019) architecture (28 nm), while the Xeon 5120 uses Woodcrest (2006) (65 nm). In PassMark, the A9-9420e scores 1,101 against the Xeon 5120's 1,115 — a 1.3% lead for the Xeon 5120.

Feature	A9-9420e	Xeon 5120
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.5 GHz+34%	1.87 GHz
Base Clock	—	1.86 GHz
L3 Cache	—	0 kB
L2 Cache	1 MB	4 MB+300%
Process	28 nm-57%	65 nm
Architecture	Stoney Ridge (2016−2019)	Woodcrest (2006)
PassMark	1,101	1,115+1%

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Memory & Platform

The A9-9420e uses the BGA socket (PCIe 3.0), while the Xeon 5120 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	A9-9420e	Xeon 5120
Socket	BGA	LGA771
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	2133	—
Max RAM Capacity	16	—
RAM Channels	1	—
ECC Support	No	—
PCIe Lanes	4	—

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Advanced Features

Virtualization: true (A9-9420e) / not specified (Xeon 5120). The A9-9420e includes integrated graphics (Radeon R5 Graphics), while the Xeon 5120 requires a dedicated GPU. Direct competitor: A9-9420e rivals Pentium N4200.