Pentium D 820 vs Pentium 3825U

Pentium D 820

2 Cores2 Thrd2 WWMax: 2.8 GHz2005

Pentium 3825U

2 Cores4 Thrd512 WWMax: 1.9 GHz2015

Performance Spectrum - CPU

Pentium D 820

2 / 2

1,412

+1.1%

1,396

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 D 820 is positioned at rank 1065 and the Pentium 3825U is on rank 886, so the Pentium 3825U 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

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 Per Dollar Pentium 3825U

#874

Atom x5-Z8300

MSRP: $20|Avg: N/A

1471%

#875

Atom Z3735G

MSRP: $17|Avg: N/A

1450%

#876

Core i5-480M

MSRP: $81|Avg: $77

1331%

#877

Core i5-460M

MSRP: $80|Avg: $129

1325%

#878

Core i5-2540M

MSRP: $266|Avg: $10

1313%

#880

Core i5-450M

MSRP: $32|Avg: $31

1268%

#881

Core i3-380M

MSRP: $49|Avg: $25

1216%

#882

Core i5-430M

MSRP: N/A|Avg: $33

1214%

#883

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1181%

#886

Pentium 3825U

MSRP: N/A|Avg: N/A

100%

#889

Core i7-7820EQ

MSRP: $378|Avg: $378

99%

#890

Celeron 7305

MSRP: $128|Avg: $107

99%

#891

E-300

MSRP: $60|Avg: $20

98%

#892

Core i7-7820HK

MSRP: $378|Avg: N/A

98%

#895

Pentium B940

MSRP: $134|Avg: $11

98%

#896

Core i5-8305G

MSRP: $350|Avg: $350

97%

#897

Celeron 6305

MSRP: $107|Avg: $80

97%

#900

Core i7-8705G

MSRP: $400|Avg: $400

96%

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 Pentium 3825U (2015) utilizes 14 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Pentium D 820	Pentium 3825U
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($20)	✅ More affordable ($0)
Longevity	🛑 Legacy (NetBurst (2000−2006) / 90 nm)	🛑 Legacy (Broadwell-U (2015) / 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	Pentium 3825U
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

Pentium 3825U Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Pentium D 820 and Pentium 3825U

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.

Pentium 3825U

The Pentium 3825U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,396 points. Launch price was $161.

⚡

Processing Power

The Pentium D 820 packs 2 cores / 2 threads, matching the Pentium 3825U's 2 cores. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 1.9 GHz on the Pentium 3825U — a 38.3% clock advantage for the Pentium D 820 (base: 2.8 GHz vs 1.9 GHz). The Pentium D 820 uses the NetBurst (2000−2006) architecture (90 nm), while the Pentium 3825U uses Broadwell-U (2015) (14 nm). In PassMark, the Pentium D 820 scores 1,412 against the Pentium 3825U's 1,396 — a 1.1% lead for the Pentium D 820. L3 cache: 0 kB on the Pentium D 820 vs 2 MB (total) on the Pentium 3825U.

Feature	Pentium D 820	Pentium 3825U
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.8 GHz+47%	1.9 GHz
Base Clock	2.8 GHz+47%	1.9 GHz
L3 Cache	0 kB	2 MB (total)
L2 Cache	2 MB+700%	256K (per core)
Process	90 nm	14 nm-84%
Architecture	NetBurst (2000−2006)	Broadwell-U (2015)
PassMark	1,412+1%	1,396
Geekbench 6 Single	166	—

🧠

Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Pentium 3825U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Pentium D 820	Pentium 3825U
Socket	LGA775	FCBGA1168
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	—