Pentium D 820 vs Celeron N4000C

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 D 820 is positioned at rank 1065 and the Celeron N4000C is on rank 721, so the Celeron N4000C 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 D 820

#1

Ryzen 9 7950X

MSRP: $194|Avg: $20

53194%

#2

Core i9-10900T

MSRP: $120|Avg: $5

50263%

#3

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

36495%

#4

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

10994%

#5

Ryzen 9 9950X

MSRP: $649|Avg: $129

8709%

#6

Ryzen 5 8400F

MSRP: $303|Avg: $55

7618%

#7

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

4363%

#8

Ryzen 5 2600X

MSRP: $229|Avg: $55

4306%

#9

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 Per Dollar Celeron N4000C

#708

Atom x5-Z8300

MSRP: $20|Avg: N/A

1026%

#709

Atom Z3735G

MSRP: $17|Avg: N/A

1011%

#710

Core i5-480M

MSRP: $81|Avg: $77

928%

#711

Core i5-460M

MSRP: $80|Avg: $129

924%

#712

Core i5-2540M

MSRP: $266|Avg: $10

915%

#714

Core i5-450M

MSRP: $32|Avg: $31

884%

#715

Core i3-380M

MSRP: $49|Avg: $25

848%

#716

Core i5-430M

MSRP: N/A|Avg: $33

846%

#717

Core 2 Duo T6600

MSRP: N/A|Avg: $4

823%

#721

Celeron N4000C

MSRP: N/A|Avg: N/A

100%

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 N4000C (2019) utilizes 14 nm technology and DDR4/LPDDR4 up to 2400 MT/s, providing a fundamental performance advantage.

Insight	Pentium D 820	Celeron N4000C
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($20)	✅ More affordable ($0)
Longevity	🛑 Legacy (NetBurst (2000−2006) / 90 nm)	✨ Modern (Legacy / 14 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	Pentium D 820	Celeron N4000C
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.

Pentium D 820 Benchmark Check

Celeron N4000C Benchmark Check

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Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Pentium D 820 and Celeron N4000C

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.

Celeron N4000C

The Celeron N4000C is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB. Built on 14 nm process technology. Socket: FCBGA1090. Thermal design power (TDP): 6 Watt. Memory support: DDR4/LPDDR4 up to 2400 MT/s. Passmark benchmark score: 1,430 points. Launch price was $69.

⚡

Processing Power

Both the Pentium D 820 and Celeron N4000C share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 2.6 GHz on the Celeron N4000C — a 7.4% clock advantage for the Pentium D 820 (base: 2.8 GHz vs 1.1 GHz). The Pentium D 820 is built on the NetBurst (2000−2006) architecture. In PassMark, the Pentium D 820 scores 1,412 against the Celeron N4000C's 1,430 — a 1.3% lead for the Celeron N4000C. L3 cache: 0 kB on the Pentium D 820 vs 4 MB on the Celeron N4000C.

Feature	Pentium D 820	Celeron N4000C
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+8%	2.6 GHz
Base Clock	2.8 GHz+155%	1.1 GHz
L3 Cache	0 kB	4 MB
L2 Cache	2 MB	—
Process	90 nm	14 nm-84%
Architecture	NetBurst (2000−2006)	—
PassMark	1,412	1,430+1%
Geekbench 6 Single	166	—

🧠

Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Celeron N4000C uses FCBGA1090 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Pentium D 820	Celeron N4000C
Socket	LGA775	FCBGA1090
PCIe Generation	PCIe 1.1	PCIe 3.0+173%
Max RAM Speed	DDR2-667	—
Max RAM Capacity	4 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	0	—