Celeron G555 vs Pentium D 820

Celeron G555

2 Cores2 Thrd65 WWMax: 2.7 GHz2012

Pentium D 820

2 Cores2 Thrd2 WWMax: 2.8 GHz2005

Performance Spectrum - CPU

Celeron G555

2 / 2

1,427

+1.1%

1,412

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 Celeron G555 is positioned at rank 634 and the Pentium D 820 is on rank 1065, so the Celeron G555 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 Celeron G555

Ryzen 9 7950X

MSRP: $194|Avg: $20

11360%

Core i9-10900T

MSRP: $120|Avg: $5

10734%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

7794%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

2348%

Ryzen 9 9950X

MSRP: $649|Avg: $129

1860%

Ryzen 5 8400F

MSRP: $303|Avg: $55

1627%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

932%

Ryzen 5 2600X

MSRP: $229|Avg: $55

920%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

837%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

837%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

828%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

806%

#13

Core i3-9100E

MSRP: $202|Avg: $30

794%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

791%

#15

Core i3-8300T

MSRP: $138|Avg: $25

784%

#387

Ryzen Embedded V1807B

MSRP: $300|Avg: $300

98%

#634

Celeron G555

MSRP: $52|Avg: $15

100%

#635

Celeron G530

MSRP: $42|Avg: $10

100%

#636

Core i3-7350K

MSRP: $179|Avg: $45

99%

#637

FX-4130

MSRP: $100|Avg: $25

99%

#638

Athlon II X2 280

MSRP: $50|Avg: $15

99%

#639

Celeron G540T

MSRP: $42|Avg: $42

99%

#640

FX-8300

MSRP: $197|Avg: $50

99%

#641

Core i5-6600

MSRP: $224|Avg: $90

99%

#642

Core i5-4460

MSRP: $182|Avg: $40

98%

#645

Core i3-4170T

MSRP: $117|Avg: $17

98%

#646

FX-8370E

MSRP: $199|Avg: $80

97%

#647

Core i5-4590S

MSRP: $192|Avg: $45

97%

#648

Pentium G2020

MSRP: $64|Avg: $15

97%

#649

Pentium G3450

MSRP: $82|Avg: $25

97%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium D 820

Ryzen 9 7950X

MSRP: $194|Avg: $20

53194%

Core i9-10900T

MSRP: $120|Avg: $5

50263%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

36495%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

10994%

Ryzen 9 9950X

MSRP: $649|Avg: $129

8709%

Ryzen 5 8400F

MSRP: $303|Avg: $55

7618%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

4363%

Ryzen 5 2600X

MSRP: $229|Avg: $55

4306%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

3921%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

3921%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

3877%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

3772%

#13

Core i3-9100E

MSRP: $202|Avg: $30

3720%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

3705%

#15

Core i3-8300T

MSRP: $138|Avg: $25

3671%

#1065

Pentium D 820

MSRP: $241|Avg: $20

100%

#1066

Celeron 2.10

MSRP: $49|Avg: $49

99%

#1067

Core i7-950

MSRP: $562|Avg: $15

99%

#1068

Sempron 3100+

MSRP: $65|Avg: $15

98%

#1069

Athlon II X4 635

MSRP: $400|Avg: $250

96%

#1070

Core 2 Duo E6750

MSRP: $183|Avg: $15

96%

#1071

Core i7-940

MSRP: $562|Avg: $90

92%

#1072

Celeron 2.40

MSRP: $69|Avg: $13

85%

#1073

Sempron 2800+

MSRP: $65|Avg: $29

84%

#1074

Athlon 64 3100+

MSRP: $100|Avg: $15

81%

#1075

Sempron 3600+

MSRP: $105|Avg: $20

79%

#1076

Celeron 2.80

MSRP: $100|Avg: $15

73%

#1077

Athlon 64 X2 6000+

MSRP: $450|Avg: $20

69%

#1078

Athlon 64 3600+

MSRP: $149|Avg: $15

68%

#1079

Core 2 Quad Q6700

MSRP: $530|Avg: $50

67%

#1080

Athlon 64 2600+

MSRP: $100|Avg: $5

67%

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 G555 (2012) utilizes 32 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Celeron G555	Pentium D 820
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	✅ More affordable ($15)	⚠️ Higher cost ($20)
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	🛑 Legacy (NetBurst (2000−2006) / 90 nm)

💎 Value Proposition

The Pentium D 820 (2005) relies on 90 nm technology and DDR1, DDR2, DDR3, placing it in a different performance category relative to modern standards.

Insight	Celeron G555	Pentium D 820
Cost Efficiency	✅ Better overall value (+35%)	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($15)	⚠️ Higher cost ($20)

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.

Celeron G555 Benchmark Check

Pentium D 820 Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Celeron G555 and Pentium D 820

Celeron G555

The Celeron G555 is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 2 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: 1,427 points. Launch price was $89.

Pentium D 820

The Pentium D 820 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,412 points. Launch price was $69.

⚡

Processing Power

Both the Celeron G555 and Pentium D 820 share an identical 2-core/2-thread configuration. Boost clocks reach 2.7 GHz on the Celeron G555 versus 2.8 GHz on the Pentium D 820 — a 3.6% clock advantage for the Pentium D 820 (base: 2.7 GHz vs 2.8 GHz). The Celeron G555 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Pentium D 820 uses NetBurst (2000−2006) (90 nm). In PassMark, the Celeron G555 scores 1,427 against the Pentium D 820's 1,412 — a 1.1% lead for the Celeron G555. Geekbench 6 single-core — the metric most relevant to gaming — records 398 vs 166, a 82.3% lead for the Celeron G555 that directly translates to higher frame rates. L3 cache: 2 MB (total) on the Celeron G555 vs 0 kB on the Pentium D 820.

Feature	Celeron G555	Pentium D 820
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.7 GHz	2.8 GHz+4%
Base Clock	2.7 GHz	2.8 GHz+4%
L3 Cache	2 MB (total)	0 kB
L2 Cache	256 kB (per core)	2 MB+700%
Process	32 nm-64%	90 nm
Architecture	Sandy Bridge (2011−2013)	NetBurst (2000−2006)
PassMark	1,427+1%	1,412
Geekbench 6 Single	398+140%	166
Geekbench 6 Multi	742	—

🧠

Memory & Platform

The Celeron G555 uses the LGA1155 socket (PCIe 2.0), while the Pentium D 820 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Celeron G555 versus DDR2-667 on the Pentium D 820 — the Celeron G555 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G555 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron G555) vs 0 (Pentium D 820) — the Celeron G555 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,H67,P67,Z68,B75,Z77 (Celeron G555) and Intel 945,Intel 955 (Pentium D 820).

Feature	Celeron G555	Pentium D 820
Socket	LGA1155	LGA775
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-1333+50%	DDR2-667
Max RAM Capacity	32 GB+700%	4 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	16	0

🔧

Advanced Features

Virtualization support: VT-x (Celeron G555) vs No (Pentium D 820). The Celeron G555 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Pentium D 820 requires a dedicated GPU. Primary use case: Celeron G555 targets Desktop. Direct competitor: Celeron G555 rivals Pentium G630.

Feature	Celeron G555	Pentium D 820
Integrated GPU	Yes	No
IGPU Model	Intel HD Graphics (Sandy Bridge)	—
Unlocked	No	—
AVX-512	No	No
Virtualization	VT-x	No
Target Use	Desktop	—

💰

Value Analysis

The Celeron G555 launched at $52 MSRP, while the Pentium D 820 debuted at $241. At current prices ($15 vs $20), the Celeron G555 is $5 cheaper. In terms of value (PassMark points per dollar), the Celeron G555 delivers 95.1 pts/$ vs 70.6 pts/$ for the Pentium D 820 — making the Celeron G555 the 29.6% better value option.