Pentium G840 vs Celeron 4205U

Pentium G840

2 Cores2 Thrd65 WWMax: 2.8 GHz2011

Celeron 4205U

2 Cores2 Thrd15 WWMax: 1.8 GHz2019

Performance Spectrum - CPU

Pentium G840

2 / 2

1,367

+1.3%

1,350

0.0%

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 Pentium G840 is positioned at rank 764 and the Celeron 4205U is on rank 152, so the Celeron 4205U 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 Pentium G840

Ryzen 9 7950X

MSRP: $194|Avg: $20

14593%

Core i9-10900T

MSRP: $120|Avg: $5

13789%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

10012%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

3016%

Ryzen 9 9950X

MSRP: $649|Avg: $129

2389%

Ryzen 5 8400F

MSRP: $303|Avg: $55

2090%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

1197%

Ryzen 5 2600X

MSRP: $229|Avg: $55

1181%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1076%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1076%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1064%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1035%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1020%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1016%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1007%

#291

Core i9-7900X

MSRP: $999|Avg: $188

98%

#764

Pentium G840

MSRP: $64|Avg: $15

100%

#765

Core i5-6440EQ

MSRP: $250|Avg: $150

100%

#767

Core i5-4590T

MSRP: $192|Avg: $130

99%

#769

Celeron G530T

MSRP: $50|Avg: $17

99%

#770

Core i7-4770K

MSRP: $339|Avg: $100

99%

#771

A10-9700

MSRP: $169|Avg: $40

99%

#772

Core i5-2400

MSRP: $184|Avg: $25

98%

#773

Core i7-5775C

MSRP: $366|Avg: $150

98%

#775

Pentium G2140

MSRP: $100|Avg: $95

98%

#776

Core i7-4790T

MSRP: $303|Avg: $102

98%

#777

Core i5-2320

MSRP: $177|Avg: $22

98%

#778

Celeron E3500

MSRP: $62|Avg: $10

97%

#779

Pentium G2030

MSRP: $85|Avg: $85

97%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron 4205U

#42

Ryzen 9 9955HX3D

MSRP: $749|Avg: N/A

98%

#140

Atom x5-Z8300

MSRP: $20|Avg: N/A

326%

#141

Atom Z3735G

MSRP: $17|Avg: N/A

321%

#142

Core i5-480M

MSRP: $81|Avg: $77

295%

#143

Core i5-460M

MSRP: $80|Avg: $129

294%

#144

Core i5-2540M

MSRP: $266|Avg: $10

291%

#146

Core i5-450M

MSRP: $32|Avg: $31

281%

#147

Core i3-380M

MSRP: $49|Avg: $25

269%

#148

Core i5-430M

MSRP: N/A|Avg: $33

269%

#149

Core 2 Duo T6600

MSRP: N/A|Avg: $4

262%

#152

Celeron 4205U

MSRP: N/A|Avg: N/A

100%

#158

Core i5-3210M

MSRP: $225|Avg: $30

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Celeron 4205U (2019) utilizes 14 nm technology and DDR3, DDR4, providing a fundamental performance advantage.

Insight	Pentium G840	Celeron 4205U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($15)	✅ More affordable ($0)
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm)

💎 Value Proposition

The Pentium G840 (2011) relies on 32 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Pentium G840	Celeron 4205U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($15)	✅ 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.

Pentium G840 Benchmark Check

Celeron 4205U Benchmark Check

Technical Specifications

Side-by-side comparison of Pentium G840 and Celeron 4205U

Pentium G840

The Pentium G840 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,367 points. Launch price was $60.

Celeron 4205U

The Celeron 4205U is manufactured by Intel. It was released in 23 January 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,350 points. Launch price was $107.

⚡

Processing Power

Both the Pentium G840 and Celeron 4205U share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium G840 versus 1.8 GHz on the Celeron 4205U — a 43.5% clock advantage for the Pentium G840 (base: 2.8 GHz vs 1.8 GHz). The Pentium G840 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Celeron 4205U uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Pentium G840 scores 1,367 against the Celeron 4205U's 1,350 — a 1.3% lead for the Pentium G840. L3 cache: 3 MB (total) on the Pentium G840 vs 2 MB (total) on the Celeron 4205U.

Feature	Pentium G840	Celeron 4205U
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+56%	1.8 GHz
Base Clock	2.8 GHz+56%	1.8 GHz
L3 Cache	3 MB (total)+50%	2 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	Whiskey Lake-U (2018−2019)
PassMark	1,367+1%	1,350
Geekbench 6 Single	—	347
Geekbench 6 Multi	—	585

🧠

Memory & Platform

The Pentium G840 uses the LGA1155 socket (PCIe 2.0), while the Celeron 4205U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Pentium G840	Celeron 4205U
Socket	LGA1155	FCBGA1528
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	—	DDR4-2133
Max RAM Capacity	—	64 GB
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	12

🔧

Advanced Features

Virtualization: not specified (Pentium G840) / VT-x, VT-d (Celeron 4205U). The Celeron 4205U includes integrated graphics (UHD Graphics 610), while the Pentium G840 requires a dedicated GPU. Primary use case: Celeron 4205U targets Budget. Direct competitor: Celeron 4205U rivals Pentium Gold 4417U.