A4-3400 vs Ryzen 9 5900X

CPU

GPU

A4-3400

2 Cores2 Thrd65 WWMax: 2.7 GHz2011

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Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020

Buy on Amazon

A4-3400 vs Ryzen 9 5900X Performance Spectrum

A4-3400

2 / 2

1,066

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen 9 5900X

12 / 24

38,955

+3554.3%

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

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.

A4-3400 vs Ryzen 9 5900X 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.

A4-3400 vs Ryzen 9 5900X: Pros, Cons & Final Verdict

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

A4-3400

2011

Why buy it

✅Draws 65W instead of 105W, a 40W reduction.
✅Integrated graphics onboard with Radeon HD 6410D, while Ryzen 9 5900X needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 5900X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (1,066 vs 38,955).

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +931.5% higher average FPS across 50 shared CPU benchmark tests.
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $549 MSRP, while A4-3400 mostly shows up through inconsistent older-market listings.
❌61.5% higher power demand at 105W vs 65W.
❌No integrated graphics, while A4-3400 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike A4-3400.

Quick Answers

So, is Ryzen 9 5900X better than A4-3400?

Yes. Ryzen 9 5900X is the better all-around CPU here. It gives you a 931.5% average FPS lead across 50 shared CPU game tests in our data, 3554.3% 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, Ryzen 9 5900X is the better pick. According to our tests, it delivers 931.5% 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, Ryzen 9 5900X is the stronger fit. You are getting 3554.3% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen 9 5900X is the better buy right now. Ryzen 9 5900X comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 931.5% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 9 5900X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2011) and more multi-core headroom with 12 cores / 24 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A4-3400 vs Ryzen 9 5900X Technical Specifications

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

A4-3400

The A4-3400 is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 2 cores and 2 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 32 nm process technology. Socket: FM1. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,066 points. Launch price was $50.

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

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Processing Power

The A4-3400 packs 2 cores / 2 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 10 more cores. Boost clocks reach 2.7 GHz on the A4-3400 versus 4.8 GHz on the Ryzen 9 5900X — a 56% clock advantage for the Ryzen 9 5900X (base: 2.7 GHz vs 3.7 GHz). The A4-3400 uses the Llano (2011−2012) architecture (32 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the A4-3400 scores 1,066 against the Ryzen 9 5900X's 38,955 — a 189.3% lead for the Ryzen 9 5900X. Geekbench 6 single-core — the metric most relevant to gaming — records 349 vs 2,174, a 144.7% lead for the Ryzen 9 5900X that directly translates to higher frame rates. L3 cache: 0 kB on the A4-3400 vs 64 MB on the Ryzen 9 5900X.

Feature	A4-3400	Ryzen 9 5900X
Cores / Threads	2 / 2	12 / 24+500%
Boost Clock	2.7 GHz	4.8 GHz+78%
Base Clock	2.7 GHz	3.7 GHz+37%
L3 Cache	0 kB	64 MB
L2 Cache	512 kB (per core)	512K (per core)
Process	32 nm	7 nm, 12 nm-78%
Architecture	Llano (2011−2012)	Vermeer (Zen3) (2020−2022)
PassMark	1,066	38,955+3554%
Cinebench R23 Multi	—	21,000
Geekbench 6 Single	349	2,174+523%
Geekbench 6 Multi	—	11,888

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Memory & Platform

The A4-3400 uses the FM1 socket (PCIe 2.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the A4-3400 versus DDR4-3200 on the Ryzen 9 5900X — the Ryzen 9 5900X supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 5900X supports up to 128 GB of RAM compared to 16 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (A4-3400) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A55,A75 (A4-3400) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).

Feature	A4-3400	Ryzen 9 5900X
Socket	FM1	AM4
PCIe Generation	PCIe 2.0	PCIe 4.0+100%
Max RAM Speed	DDR3-1600	DDR4-3200+100%
Max RAM Capacity	16 GB	128 GB+700%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

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Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AMD-V virtualization. The A4-3400 includes integrated graphics (Radeon HD 6410D), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: A4-3400 targets Budget Desktop, Ryzen 9 5900X targets Workstation. Direct competitor: A4-3400 rivals Pentium G620; Ryzen 9 5900X rivals Core i9-12900K.