A8-3820 vs Ryzen 7 7800X3D

CPU

GPU

A8-3820

4 Cores4 Thrd65 WWMax: 2.8 GHz2011

Similar parts

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Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023

Ryzen family

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A8-3820 vs Ryzen 7 7800X3D Performance Spectrum

A8-3820

4 / 4

2,178

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen 7 7800X3D

8 / 16

34,293

+1474.5%

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.

A8-3820 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.

A8-3820 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.

A8-3820

2011

Why buy it

✅Costs $169 less on MSRP ($280 MSRP vs $449 MSRP).
✅Draws 65W instead of 120W, a 55W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen 7 7800X3D.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 39 shared CPU benchmark tests.
❌Lower PassMark (2,178 vs 34,293).
❌Lower PassMark per dollar, at 7.8 vs 76.4 PassMark/$ ($280 MSRP vs $449 MSRP).
❌Older platform position on FM1, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +483.9% higher average FPS across 39 shared CPU benchmark tests.
✅Delivers 881.9% more PassMark for each dollar spent, at 76.4 vs 7.8 PassMark/$ ($449 MSRP vs $280 MSRP).
✅Newer platform on AM5 with DDR5 support instead of FM1 and older memory support.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌
60.4% HIGHER MSRP
$449 MSRPvs$280 MSRP
❌84.6% higher power demand at 120W vs 65W.
❌No boxed cooler included, unlike A8-3820.

Quick Answers

So, is Ryzen 7 7800X3D better than A8-3820?

Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 483.9% average FPS lead across 39 shared CPU game tests in our data, 1474.5% 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 7 7800X3D is the better pick. According to our tests, it delivers 483.9% 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 1474.5% better PassMark, 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 60.4% more expensive on MSRP at $449 MSRP versus $280 MSRP, and it still gives you a 483.9% average FPS lead across 39 shared CPU game tests in our data. It is also 881.9% better value on MSRP (76.4 vs 7.8 PassMark/$), 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 2011), a healthier platform with AM5 and DDR5 instead of FM1, 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 4/4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

A8-3820 vs Ryzen 7 7800X3D Technical Specifications

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

A8-3820

The A8-3820 is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,178 points. Launch price was $90.

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 A8-3820 packs 4 cores / 4 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 4 more cores. Boost clocks reach 2.8 GHz on the A8-3820 versus 5 GHz on the Ryzen 7 7800X3D — a 56.4% clock advantage for the Ryzen 7 7800X3D (base: 2.5 GHz vs 4.4 GHz). The A8-3820 uses the Llano (2011−2012) architecture (32 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the A8-3820 scores 2,178 against the Ryzen 7 7800X3D's 34,293 — a 176.1% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 354 vs 2,700, a 153.6% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. L3 cache: 0 kB on the A8-3820 vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	A8-3820	Ryzen 7 7800X3D
Cores / Threads	4 / 4	8 / 16+100%
Boost Clock	2.8 GHz	5 GHz+79%
Base Clock	2.5 GHz	4.4 GHz+76%
L3 Cache	0 kB	96 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	32 nm	5 nm-84%
Architecture	Llano (2011−2012)	Raphael (Zen4) (2022−2023)
PassMark	2,178	34,293+1475%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	354	2,700+663%
Geekbench 6 Multi	—	15,000

🧠

Memory & Platform

The A8-3820 uses the FM1 socket (PCIe 2.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the A8-3820 versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 178.7% 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 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (A8-3820) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A55,A75 (A8-3820) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	A8-3820	Ryzen 7 7800X3D
Socket	FM1	AM5
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	DDR3-1866	DDR5-5200+179%
Max RAM Capacity	32 GB	128 GB+300%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	28+40%

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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 HD 6550D (A8-3820) 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: A8-3820 targets Budget Desktop, Ryzen 7 7800X3D targets Gaming. Direct competitor: A8-3820 rivals Core i3-2120; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	A8-3820	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	Radeon HD 6550D	AMD Radeon Graphics (2-core)
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	AMD-V	AMD-V
Target Use	Budget Desktop	Gaming

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Value Analysis

At launch, the A8-3820 was priced at $280, while the Ryzen 7 7800X3D came in at $449. On launch pricing ($280 vs $449), A8-3820 was $169 cheaper. In terms of value on MSRP (PassMark points per dollar), the A8-3820 delivers 7.8 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 163% better value option.

Feature	A8-3820	Ryzen 7 7800X3D
MSRP	$280-38%	$449
Performance per Dollar	7.8	76.4+879%
Release Date	2011	2023

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