A4-9120C vs Athlon 64 X2 4200+

A4-9120C vs Athlon 64 X2 4200+ Performance Spectrum

A4-9120C

2 / 2

1,258

+0.2%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Athlon 64 X2 4200+

2 / 2

1,255

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

A4-9120C vs Athlon 64 X2 4200+ 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.

A4-9120C vs Athlon 64 X2 4200+: Pros, Cons & Final Verdict

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

A4-9120C

2019

Why buy it

✅+0.2% higher PassMark.
✅Draws 6W instead of 89W, a 83W reduction.
✅100+% more PCIe lanes (8 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon R4, while Athlon 64 X2 4200+ needs a discrete GPU.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Athlon 64 X2 4200+

2006

Why buy it

Trade-offs

❌Lower PassMark (1,255 vs 1,258).
❌Launch MSRP is still $581 MSRP, while A4-9120C mostly shows up through inconsistent older-market listings.
❌1383.3% higher power demand at 89W vs 6W.
❌No integrated graphics, while A4-9120C can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is A4-9120C better than Athlon 64 X2 4200+?

It depends on what you want from the system. For gaming, Athlon 64 X2 4200+ is ahead with a 0.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, A4-9120C pulls ahead with 0.2% better PassMark.

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

For streaming, content creation, and heavier multitasking, A4-9120C 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?

A4-9120C is still the much better call for a fresh build. A4-9120C comes in at an unclear MSRP at unclear MSRP versus $581 MSRP, and it still gives you 0.2% better PassMark. Athlon 64 X2 4200+ only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2006 platform. Even with 100.0% better value on paper (2.2 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on 939.

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

A4-9120C makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2006) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A4-9120C vs Athlon 64 X2 4200+ Technical Specifications

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

A4-9120C

The A4-9120C is manufactured by AMD. It was released in 2014-01-01. It is based on the Stoney Ridge (2016−2019) architecture. It features 2 cores and 2 threads. Max frequency: 1.6 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: 1,258 points. Launch price was $50.

Athlon 64 X2 4200+

The Athlon 64 X2 4200+ is manufactured by AMD. It was released in Dezembro 2006 (19 years ago). It is based on the Manchester (2005−2006) architecture. It features 2 cores and 2 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 90 nm process technology. Socket: 939. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,255 points. Launch price was $309.

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Processing Power

Both the A4-9120C and Athlon 64 X2 4200+ share an identical 2-core/2-thread configuration. Boost clocks reach 1.6 GHz on the A4-9120C versus 2.2 GHz on the Athlon 64 X2 4200+ — a 31.6% clock advantage for the Athlon 64 X2 4200+. The A4-9120C uses the Stoney Ridge (2016−2019) architecture (28 nm), while the Athlon 64 X2 4200+ uses Manchester (2005−2006) (90 nm). In PassMark, the A4-9120C scores 1,258 against the Athlon 64 X2 4200+'s 1,255 — a 0.2% lead for the A4-9120C.

Feature	A4-9120C	Athlon 64 X2 4200+
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.6 GHz	2.2 GHz+38%
L3 Cache	—	0 kB
L2 Cache	1 MB+100%	512 kB
Process	28 nm-69%	90 nm
Architecture	Stoney Ridge (2016−2019)	Manchester (2005−2006)
PassMark	1,258	1,255
Geekbench 6 Single	418	—

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Memory & Platform

The A4-9120C uses the BGA socket (PCIe 3.0), while the Athlon 64 X2 4200+ uses 939 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-1866 on the A4-9120C versus DDR2-800 on the Athlon 64 X2 4200+ — the A4-9120C supports 133.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon 64 X2 4200+ supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Memory channels: 1 (A4-9120C) vs 2 (Athlon 64 X2 4200+). PCIe lanes: 8 (A4-9120C) vs 0 (Athlon 64 X2 4200+) — the A4-9120C offers 8 more lanes for additional GPUs or NVMe drives.

Feature	A4-9120C	Athlon 64 X2 4200+
Socket	BGA	939
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR4-1866+133%	DDR2-800
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	1	2+100%
ECC Support	No	No
PCIe Lanes	8	0

🔧

Advanced Features

Virtualization: AMD-V (A4-9120C) / not specified (Athlon 64 X2 4200+). The A4-9120C includes integrated graphics (Radeon R4), while the Athlon 64 X2 4200+ requires a dedicated GPU. Primary use case: A4-9120C targets Chromebook. Direct competitor: A4-9120C rivals Celeron N3350.