Atom C3558 vs Core i5-4350U

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 C3558 vs Core i5-4350U 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 C3558 vs Core i5-4350U: Pros, Cons & Final Verdict

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

Atom C3558

2017

Why buy it

✅+0.2% higher PassMark.
✅+166.7% larger total L3 cache (8 MB vs 3 MB).
✅Draws 16W instead of 512W, a 496W reduction.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.

Trade-offs

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

Core i5-4350U

2013

Why buy it

Trade-offs

❌Lower PassMark (2,425 vs 2,431).
❌Smaller total L3 cache (3 MB vs 8 MB).
❌3100% higher power demand at 512W vs 16W.

Quick Answers

So, is Atom C3558 better than Core i5-4350U?

It depends on what you want from the system. For gaming, Core i5-4350U is ahead with a 0.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Atom C3558 pulls ahead with 0.2% better PassMark. Atom C3558 also has the bigger cache pool with 166.7% larger total L3 cache (8 MB vs 3 MB).

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

For streaming, content creation, and heavier multitasking, Atom C3558 is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 166.7% larger total L3 cache (8 MB vs 3 MB).

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

Atom C3558 still makes the most sense overall. Atom C3558 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.2% better PassMark.

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

Atom C3558 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2013), 166.7% larger total L3 cache (8 MB vs 3 MB), and more multi-core headroom with 4 cores / 4 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom C3558 vs Core i5-4350U Technical Specifications

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

Atom C3558

The Atom C3558 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 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 8 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 16 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 2,431 points. Launch price was $86.

Core i5-4350U

The Core i5-4350U is manufactured by Intel. It was released in 4 June 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.4 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,425 points. Launch price was $342.

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Processing Power

The Atom C3558 packs 4 cores / 4 threads, while the Core i5-4350U offers 2 cores / 4 threads — the Atom C3558 has 2 more cores. Boost clocks reach 2.2 GHz on the Atom C3558 versus 2.9 GHz on the Core i5-4350U — a 27.5% clock advantage for the Core i5-4350U (base: 2.2 GHz vs 1.4 GHz). The Atom C3558 uses the Goldmont (2016−2017) architecture (14 nm), while the Core i5-4350U uses Haswell (2013−2015) (22 nm). In PassMark, the Atom C3558 scores 2,431 against the Core i5-4350U's 2,425 — a 0.2% lead for the Atom C3558. L3 cache: 8 MB on the Atom C3558 vs 3 MB (total) on the Core i5-4350U.

Feature	Atom C3558	Core i5-4350U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	2.2 GHz	2.9 GHz+32%
Base Clock	2.2 GHz+57%	1.4 GHz
L3 Cache	8 MB+167%	3 MB (total)
L2 Cache	8 MB	256K (per core)+3100%
Process	14 nm-36%	22 nm
Architecture	Goldmont (2016−2017)	Haswell (2013−2015)
PassMark	2,431	2,425

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Memory & Platform

The Atom C3558 uses the FCBGA1310 socket (PCIe 3.0), while the Core i5-4350U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Atom C3558	Core i5-4350U
Socket	FCBGA1310	FCBGA1168
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	256 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	12	—