Atom C3955 vs Ryzen 3 PRO 3300U

Atom C3955 vs Ryzen 3 PRO 3300U Performance Spectrum

Atom C3955

16 / 16

5,803

0.0%

5,831

+0.5%

Ryzen Threadripper PRO 3975WX

Ryzen Threadripper PRO 7965WX

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.

Atom C3955 vs Ryzen 3 PRO 3300U 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.

Atom C3955 vs Ryzen 3 PRO 3300U: Pros, Cons & Final Verdict

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

Atom C3955

2017

Why buy it

✅Better for gaming: +27.8% higher average FPS across 50 shared CPU benchmark tests.
✅+300% larger total L3 cache (16 MB vs 4 MB).
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (5,803 vs 5,831).
❌113.3% higher power demand at 32W vs 15W.

Ryzen 3 PRO 3300U

2019

Why buy it

✅+0.5% higher PassMark.
✅Draws 15W instead of 32W, a 17W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Atom C3955 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 16 MB).

Quick Answers

So, is Ryzen 3 PRO 3300U better than Atom C3955?

It depends on what you want from the system. For gaming, Atom C3955 is ahead with a 27.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 3 PRO 3300U pulls ahead with 0.5% better PassMark. Atom C3955 also has the bigger cache pool with 300% larger total L3 cache (16 MB vs 4 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 3 PRO 3300U is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 4 threads.

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

Ryzen 3 PRO 3300U still makes the most sense overall. Ryzen 3 PRO 3300U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.5% better PassMark.

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

Ryzen 3 PRO 3300U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2017) and more multi-core headroom with 4 cores / 4 threads instead of 16/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom C3955 vs Ryzen 3 PRO 3300U Technical Specifications

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

Atom C3955

The Atom C3955 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 16 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 2.4 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 32 Watt. Memory support: DDR4: 2400. Passmark benchmark score: 5,803 points. Launch price was $434.

Ryzen 3 PRO 3300U

The Ryzen 3 PRO 3300U is manufactured by AMD. It was released in 8 April 2019 (6 years ago). It is based on the Picasso (2019−2022) architecture. It features 4 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 12 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 5,831 points. Launch price was $149.

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Processing Power

The Atom C3955 packs 16 cores / 16 threads, while the Ryzen 3 PRO 3300U offers 4 cores / 4 threads — the Atom C3955 has 12 more cores. Boost clocks reach 2.4 GHz on the Atom C3955 versus 3.5 GHz on the Ryzen 3 PRO 3300U — a 37.3% clock advantage for the Ryzen 3 PRO 3300U (base: 2.1 GHz vs 2.1 GHz). The Atom C3955 uses the Goldmont (2016−2017) architecture (14 nm), while the Ryzen 3 PRO 3300U uses Picasso (2019−2022) (12 nm). In PassMark, the Atom C3955 scores 5,803 against the Ryzen 3 PRO 3300U's 5,831 — a 0.5% lead for the Ryzen 3 PRO 3300U. L3 cache: 16 MB on the Atom C3955 vs 4 MB (total) on the Ryzen 3 PRO 3300U.

Feature	Atom C3955	Ryzen 3 PRO 3300U
Cores / Threads	16 / 16+300%	4 / 4
Boost Clock	2.4 GHz	3.5 GHz+46%
Base Clock	2.1 GHz	2.1 GHz
L3 Cache	16 MB+300%	4 MB (total)
L2 Cache	16 MB	512K (per core)+3100%
Process	14 nm	12 nm-14%
Architecture	Goldmont (2016−2017)	Picasso (2019−2022)
PassMark	5,803	5,831

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Memory & Platform

The Atom C3955 uses the FCBGA1310 socket (PCIe 3.0), while the Ryzen 3 PRO 3300U uses FP5 (PCIe 3.0) — making them incompatible on the same motherboard.