A9-9420 vs Ryzen 7 7800X3D

CPU

GPU

A9-9420

2 Cores2 Thrd15 WWMax: 3.6 GHz2016

Similar parts

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Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023

Ryzen family

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A9-9420 vs Ryzen 7 7800X3D Performance Spectrum

A9-9420

2 / 2

1,538

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen 7 7800X3D

8 / 16

34,293

+2129.7%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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.

A9-9420 vs Ryzen 7 7800X3D 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.

A9-9420 vs Ryzen 7 7800X3D: Pros, Cons & Final Verdict

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

A9-9420

2016

Why buy it

✅Costs $299 less on MSRP ($150 MSRP vs $449 MSRP).
✅Draws 15W instead of 120W, a 105W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 39 shared CPU benchmark tests.
❌Lower Geekbench multi-core (950 vs 15,000).
❌Lower PassMark per dollar, at 10.3 vs 76.4 PassMark/$ ($150 MSRP vs $449 MSRP).
❌Older platform position on FT4 with DDR4, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +633.9% higher average FPS across 39 shared CPU benchmark tests.
✅Delivers 644.9% more PassMark for each dollar spent, at 76.4 vs 10.3 PassMark/$ ($449 MSRP vs $150 MSRP).
✅Newer platform on AM5 with DDR5 support instead of FT4 and DDR4.
✅250% more PCIe lanes (28 vs 8) for storage and expansion-heavy builds.

Trade-offs

❌
199.3% HIGHER MSRP
$449 MSRPvs$150 MSRP
❌700% higher power demand at 120W vs 15W.

Quick Answers

So, is Ryzen 7 7800X3D better than A9-9420?

Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 633.9% average FPS lead across 39 shared CPU game tests in our data, 1478.9% better Geekbench multi-core, 2129.7% higher 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 7 7800X3D is the better pick. According to our tests, it delivers 633.9% more average FPS across 39 shared CPU game tests. It also has a clear cache advantage at 96 MB versus null.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7800X3D is the stronger fit. You are getting 1478.9% better Geekbench multi-core, backed by 8 cores and 16 threads.

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

Ryzen 7 7800X3D is the better buy right now. Ryzen 7 7800X3D comes in 199.3% more expensive on MSRP at $449 MSRP versus $150 MSRP, and it still gives you a 633.9% average FPS lead across 39 shared CPU game tests in our data. It is also 644.9% better value on MSRP (76.4 vs 10.3 PassMark/$), 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 7 7800X3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2016), a healthier platform with AM5 and DDR5 instead of FT4, 3D V-Cache and a much larger 96 MB L3 cache instead of null, and more multi-core headroom with 8 cores / 16 threads instead of 2/2. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

A9-9420 vs Ryzen 7 7800X3D Technical Specifications

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

A9-9420

The A9-9420 is manufactured by AMD. It was released in 31 May 2016 (9 years ago). It is based on the Stoney Ridge (2016−2019) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB (total). Built on 28 nm process technology. Socket: FT4. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,538 points. Launch price was $69.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

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Processing Power

The A9-9420 packs 2 cores / 2 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 6 more cores. Boost clocks reach 3.6 GHz on the A9-9420 versus 5 GHz on the Ryzen 7 7800X3D — a 32.6% clock advantage for the Ryzen 7 7800X3D (base: 3 GHz vs 4.4 GHz). The A9-9420 uses the Stoney Ridge (2016−2019) architecture (28 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the A9-9420 scores 1,538 against the Ryzen 7 7800X3D's 34,293 — a 182.8% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 497 vs 2,700, a 137.8% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. Multi-core Geekbench: 950 vs 15,000 (176.2% advantage for the Ryzen 7 7800X3D). L3 cache: 0 kB on the A9-9420 vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	A9-9420	Ryzen 7 7800X3D
Cores / Threads	2 / 2	8 / 16+300%
Boost Clock	3.6 GHz	5 GHz+39%
Base Clock	3 GHz	4.4 GHz+47%
L3 Cache	0 kB	96 MB (total)
L2 Cache	1 MB (total)	1 MB (per core)
Process	28 nm	5 nm-82%
Architecture	Stoney Ridge (2016−2019)	Raphael (Zen4) (2022−2023)
PassMark	1,538	34,293+2130%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	497	2,700+443%
Geekbench 6 Multi	950	15,000+1479%

🧠

Memory & Platform

The A9-9420 uses the FT4 socket (PCIe 3.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the A9-9420 versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 143.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7800X3D supports up to 128 GB of RAM compared to 8 GB — 1500% more capacity for professional workloads. Memory channels: 1 (A9-9420) vs 2 (Ryzen 7 7800X3D). PCIe lanes: 8 (A9-9420) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (A9-9420) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	A9-9420	Ryzen 7 7800X3D
Socket	FT4	AM5
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2133	DDR5-5200+144%
Max RAM Capacity	8 GB	128 GB+1500%
RAM Channels	1	2+100%
ECC Support	No	Yes
PCIe Lanes	8	28+250%

🔧

Advanced Features

Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. Both include integrated graphics — Radeon R5 (A9-9420) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A9-9420 targets Budget Laptop, Ryzen 7 7800X3D targets Gaming. Direct competitor: A9-9420 rivals Pentium N4200; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	A9-9420	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	Radeon R5	AMD Radeon Graphics (2-core)
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	AMD-V	AMD-V
Target Use	Budget Laptop	Gaming

💰

Value Analysis

At launch, the A9-9420 was priced at $150, while the Ryzen 7 7800X3D came in at $449. On launch pricing ($150 vs $449), A9-9420 was $299 cheaper. In terms of value on MSRP (PassMark points per dollar), the A9-9420 delivers 10.3 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 152.7% better value option.

Feature	A9-9420	Ryzen 7 7800X3D
MSRP	$150-67%	$449
Performance per Dollar	10.3	76.4+642%
Release Date	2016	2023

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