Core i7-4558U vs Atom x5-Z8350

CPU

GPU

Core i7-4558U

2 Cores4 Thrd512 WWMax: 3.3 GHz2013

Atom x5-Z8350

4 Cores4 Thrd−WMax: 1.92 GHz2016

Performance Spectrum - CPU

Core i7-4558U

2 / 4

2,966

0.0%

2,979

+0.4%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i7-4558U is positioned at rank 452 and the Atom x5-Z8350 is on rank 231, so the Atom x5-Z8350 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i7-4558U

#440

Atom x5-Z8300

MSRP: $20|Avg: N/A

594%

#441

Atom Z3735G

MSRP: $17|Avg: N/A

585%

#442

Core i5-480M

MSRP: $81|Avg: $77

537%

#443

Core i5-460M

MSRP: $80|Avg: $129

534%

#444

Core i5-2540M

MSRP: $266|Avg: $10

530%

#446

Core i5-450M

MSRP: $32|Avg: $31

511%

#447

Core i3-380M

MSRP: $49|Avg: $25

490%

#448

Core i5-430M

MSRP: N/A|Avg: $33

490%

#449

Core 2 Duo T6600

MSRP: N/A|Avg: $4

476%

#452

Core i7-4558U

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom x5-Z8350

#219

Atom x5-Z8300

MSRP: $20|Avg: N/A

394%

#220

Atom Z3735G

MSRP: $17|Avg: N/A

388%

#221

Core i5-480M

MSRP: $81|Avg: $77

356%

#222

Core i5-460M

MSRP: $80|Avg: $129

355%

#223

Core i5-2540M

MSRP: $266|Avg: $10

351%

#225

Core i5-450M

MSRP: $32|Avg: $31

339%

#226

Core i3-380M

MSRP: $49|Avg: $25

325%

#227

Core i5-430M

MSRP: N/A|Avg: $33

325%

#228

Core 2 Duo T6600

MSRP: N/A|Avg: $4

316%

#231

Atom x5-Z8350

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i7-4558U leads in gaming performance. However, the Atom x5-Z8350 is the stronger candidate for professional workloads, offering 0.4% greater multi-core processing power.

Insight	Core i7-4558U	Atom x5-Z8350
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Haswell-ULT (2013) / 22 nm)	🛑 Legacy (Cherry Trail (2015−2016) / 14 nm)

💎 Value Proposition

Insight	Core i7-4558U	Atom x5-Z8350
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i7-4558U Benchmark Check

Atom x5-Z8350 Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-4558U and Atom x5-Z8350

Core i7-4558U

The Core i7-4558U is manufactured by Intel. It was released in 4 June 2013 (12 years ago). It is based on the Haswell-ULT (2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.8 GHz, with boost up to 3.3 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 28 Watt. Memory support: DDR3. Passmark benchmark score: 2,966 points. Launch price was $454.

Atom x5-Z8350

The Atom x5-Z8350 is manufactured by Intel. It was released in 8 February 2016 (9 years ago). It is based on the Cherry Trail (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.44 GHz, with boost up to 1.92 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA592. Memory support: 4 GB. Passmark benchmark score: 2,979 points. Launch price was $69.

⚡

Processing Power

The Core i7-4558U packs 2 cores / 4 threads, while the Atom x5-Z8350 offers 4 cores / 4 threads — the Atom x5-Z8350 has 2 more cores. Boost clocks reach 3.3 GHz on the Core i7-4558U versus 1.92 GHz on the Atom x5-Z8350 — a 52.9% clock advantage for the Core i7-4558U (base: 2.8 GHz vs 1.44 GHz). The Core i7-4558U uses the Haswell-ULT (2013) architecture (22 nm), while the Atom x5-Z8350 uses Cherry Trail (2015−2016) (14 nm). In PassMark, the Core i7-4558U scores 2,966 against the Atom x5-Z8350's 2,979 — a 0.4% lead for the Atom x5-Z8350. L3 cache: 4 MB (total) on the Core i7-4558U vs 0 kB on the Atom x5-Z8350.

Feature	Core i7-4558U	Atom x5-Z8350
Cores / Threads	2 / 4	4 / 4+100%
Boost Clock	3.3 GHz+72%	1.92 GHz
Base Clock	2.8 GHz+94%	1.44 GHz
L3 Cache	4 MB (total)	0 kB
L2 Cache	256K (per core)	2 MB+700%
Process	22 nm	14 nm-36%
Architecture	Haswell-ULT (2013)	Cherry Trail (2015−2016)
PassMark	2,966	2,979

🧠

Memory & Platform

The Core i7-4558U uses the FCBGA1168 socket (PCIe 3.0), while the Atom x5-Z8350 uses UTFCBGA592 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-4558U	Atom x5-Z8350
Socket	FCBGA1168	UTFCBGA592
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	—	DDR3L-RS 1600
Max RAM Capacity	—	2 GB
RAM Channels	—	1
ECC Support	—	❌
PCIe Lanes	—	1