Atom E3845 vs Pentium 3556U

Atom E3845

4 Cores4 Thrd10 WWMax: 1.91 GHz2013

Pentium 3556U

2 Cores2 Thrd512 WWMax: 1.7 GHz2013

Performance Spectrum - CPU

Atom E3845

4 / 4

1,071

0.0%

1,072

+0.1%

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 E3845 is positioned at rank 764 and the Pentium 3556U is on rank 253, so the Pentium 3556U 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 E3845

#752

Atom x5-Z8300

MSRP: $20|Avg: N/A

1096%

#753

Atom Z3735G

MSRP: $17|Avg: N/A

1080%

#754

Core i5-480M

MSRP: $81|Avg: $77

991%

#755

Core i5-460M

MSRP: $80|Avg: $129

987%

#756

Core i5-2540M

MSRP: $266|Avg: $10

978%

#758

Core i5-450M

MSRP: $32|Avg: $31

944%

#759

Core i3-380M

MSRP: $49|Avg: $25

905%

#760

Core i5-430M

MSRP: N/A|Avg: $33

904%

#761

Core 2 Duo T6600

MSRP: N/A|Avg: $4

879%

#764

Atom E3845

MSRP: N/A|Avg: N/A

100%

#767

Core i7-1250U

MSRP: $426|Avg: N/A

99%

#773

Core i7-9750HF

MSRP: $395|Avg: $395

98%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium 3556U

#241

Atom x5-Z8300

MSRP: $20|Avg: N/A

411%

#242

Atom Z3735G

MSRP: $17|Avg: N/A

405%

#243

Core i5-480M

MSRP: $81|Avg: $77

371%

#244

Core i5-460M

MSRP: $80|Avg: $129

370%

#245

Core i5-2540M

MSRP: $266|Avg: $10

366%

#247

Core i5-450M

MSRP: $32|Avg: $31

354%

#248

Core i3-380M

MSRP: $49|Avg: $25

339%

#249

Core i5-430M

MSRP: N/A|Avg: $33

339%

#250

Core 2 Duo T6600

MSRP: N/A|Avg: $4

330%

#253

Pentium 3556U

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 Atom E3845 leads in gaming performance. However, the Pentium 3556U is the stronger candidate for professional workloads, offering 0.1% greater multi-core processing power.

Insight	Atom E3845	Pentium 3556U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Bay Trail-I (2013) / 22 nm)	🛑 Legacy (Haswell (2013−2015) / 22 nm)

💎 Value Proposition

Insight	Atom E3845	Pentium 3556U
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.

Atom E3845 Benchmark Check

Pentium 3556U Benchmark Check

Technical Specifications

Side-by-side comparison of Atom E3845 and Pentium 3556U

Atom E3845

The Atom E3845 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 4 cores and 4 threads. Max frequency: 1.91 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,071 points. Launch price was $69.

Pentium 3556U

The Pentium 3556U is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 2 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: 1,072 points. Launch price was $69.

⚡

Processing Power

The Atom E3845 packs 4 cores / 4 threads, while the Pentium 3556U offers 2 cores / 2 threads — the Atom E3845 has 2 more cores. Boost clocks reach 1.91 GHz on the Atom E3845 versus 1.7 GHz on the Pentium 3556U — a 11.6% clock advantage for the Atom E3845. The Atom E3845 uses the Bay Trail-I (2013) architecture (22 nm), while the Pentium 3556U uses Haswell (2013−2015) (22 nm). In PassMark, the Atom E3845 scores 1,071 against the Pentium 3556U's 1,072 — a 0.1% lead for the Pentium 3556U. L3 cache: 0 kB on the Atom E3845 vs 2 MB (total) on the Pentium 3556U.

Feature	Atom E3845	Pentium 3556U
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	1.91 GHz+12%	1.7 GHz
Base Clock	—	1.7 GHz
L3 Cache	0 kB	2 MB (total)
L2 Cache	512 kB (per core)+100%	256K (per core)
Process	22 nm	22 nm
Architecture	Bay Trail-I (2013)	Haswell (2013−2015)
PassMark	1,071	1,072

🧠

Memory & Platform

The Atom E3845 uses the FCBGA1170 socket (PCIe 2.0), while the Pentium 3556U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Atom E3845	Pentium 3556U
Socket	FCBGA1170	FCBGA1168
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3L-1333	—
Max RAM Capacity	8 GB	—
RAM Channels	2	—
ECC Support	✅	—
PCIe Lanes	4	—