Atom x5-Z8300 vs Core i7-4558U

Atom x5-Z8300

4 Cores4 Thrd−WMax: 1.84 GHz2015

Core i7-4558U

2 Cores4 Thrd512 WWMax: 3.3 GHz2013

Performance Spectrum - CPU

Atom x5-Z8300

4 / 4

2,934

0.0%

2,966

+1.1%

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 Atom x5-Z8300 is positioned at rank 4 and the Core i7-4558U is on rank 452, so the Atom x5-Z8300 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 Atom x5-Z8300

Atom x5-Z8300

MSRP: $20|Avg: N/A

100%

Atom Z3735G

MSRP: $17|Avg: N/A

99%

Core i5-480M

MSRP: $81|Avg: $77

90%

Core i5-460M

MSRP: $80|Avg: $129

90%

Core i5-2540M

MSRP: $266|Avg: $10

89%

#10

Core i5-450M

MSRP: $32|Avg: $31

86%

#11

Core i3-380M

MSRP: $49|Avg: $25

83%

#12

Core i5-430M

MSRP: N/A|Avg: $33

82%

#13

Core 2 Duo T6600

MSRP: N/A|Avg: $4

80%

#17

Core i3-350M

MSRP: $130|Avg: $10

74%

#18

Atom x5-E8000

MSRP: $18|Avg: N/A

73%

#19

Core 2 Duo T5900

MSRP: N/A|Avg: $5

72%

Based on actual market prices and performance synthetic scores.

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 Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Core i7-4558U delivers superior performance across the board. It outperforms the Atom x5-Z8300 in both compute-intensive tasks (1.1% faster) and gaming workloads.

Insight	Atom x5-Z8300	Core i7-4558U
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($20)	✅ More affordable ($0)
Longevity	🛑 Legacy (Cherry Trail (2015−2016) / 14 nm)	🛑 Legacy (Haswell-ULT (2013) / 22 nm)

💎 Value Proposition

Insight	Atom x5-Z8300	Core i7-4558U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($20)	✅ More affordable ($0)

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.

Atom x5-Z8300 Benchmark Check

Core i7-4558U Benchmark Check

Technical Specifications

Side-by-side comparison of Atom x5-Z8300 and Core i7-4558U

Atom x5-Z8300

The Atom x5-Z8300 is manufactured by Intel. It was released in 2 March 2015 (10 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 1.84 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA592. Memory support: DDR3. Passmark benchmark score: 2,934 points. Launch price was $69.

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.

⚡

Processing Power

The Atom x5-Z8300 packs 4 cores / 4 threads, while the Core i7-4558U offers 2 cores / 4 threads — the Atom x5-Z8300 has 2 more cores. Boost clocks reach 1.84 GHz on the Atom x5-Z8300 versus 3.3 GHz on the Core i7-4558U — a 56.8% clock advantage for the Core i7-4558U (base: 1.44 GHz vs 2.8 GHz). The Atom x5-Z8300 uses the Cherry Trail (2015−2016) architecture (14 nm), while the Core i7-4558U uses Haswell-ULT (2013) (22 nm). In PassMark, the Atom x5-Z8300 scores 2,934 against the Core i7-4558U's 2,966 — a 1.1% lead for the Core i7-4558U. L3 cache: 0 kB on the Atom x5-Z8300 vs 4 MB (total) on the Core i7-4558U.

Feature	Atom x5-Z8300	Core i7-4558U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	1.84 GHz	3.3 GHz+79%
Base Clock	1.44 GHz	2.8 GHz+94%
L3 Cache	0 kB	4 MB (total)
L2 Cache	2 MB+700%	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Cherry Trail (2015−2016)	Haswell-ULT (2013)
PassMark	2,934	2,966+1%

🧠

Memory & Platform

The Atom x5-Z8300 uses the UTFCBGA592 socket (PCIe 3.0), while the Core i7-4558U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Atom x5-Z8300	Core i7-4558U
Socket	UTFCBGA592	FCBGA1168
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	—