Ryzen 7 7800X3D vs Mobile Pentium 4 2.66

Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023

Mobile Pentium 4 2.66

1 Cores2 Thrd66 WWMax: 2.67 GHz2003

Performance Spectrum - CPU

Ryzen 7 7800X3D

8 / 16

34,293

+8581.8%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

Mobile Pentium 4 2.66

1 / 2

395

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.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Ryzen 7 7800X3D

#197

Ryzen 5 5600X3D

MSRP: $229|Avg: $229

107%

#198

Core i3-9350KF

MSRP: $173|Avg: $80

106%

#199

Ryzen 7 PRO 5755GE

MSRP: $220|Avg: $220

106%

#200

Core i3-9300

MSRP: $143|Avg: $75

106%

#201

Ryzen 7 3800XT

MSRP: $399|Avg: $249

105%

#202

Core i5-11400T

MSRP: $182|Avg: $140

104%

#203

Core i3-10305

MSRP: $149|Avg: $100

103%

#204

Core i3-9320

MSRP: $154|Avg: $80

103%

#205

Core i3-10105

MSRP: $122|Avg: $90

103%

#206

Core i3-13100E

MSRP: $150|Avg: $150

102%

#207

Core i9-13900F

MSRP: $524|Avg: $536

102%

#208

Processor 300

MSRP: $82|Avg: $80

102%

#209

Ryzen 5 2600

MSRP: $199|Avg: $145

102%

#210

Ryzen 5 2400GE

MSRP: $169|Avg: $80

101%

#211

Core i9-14900KS

MSRP: $749|Avg: $670

101%

#212

Ryzen 7 7800X3D

MSRP: $449|Avg: $384

100%

#213

Core i3-8100T

MSRP: $117|Avg: $59

100%

#214

Core i7-13700E

MSRP: $390|Avg: $380

100%

#215

Ryzen 7 PRO 5750G

MSRP: $430|Avg: $270

99%

#216

Core i7-9700

MSRP: $333|Avg: $150

99%

#217

Core i5-13500TE

MSRP: $235|Avg: $250

98%

#218

Ryzen 3 PRO 2200G

MSRP: $294|Avg: $76

98%

#219

Ryzen 7 PRO 5845

MSRP: $300|Avg: $300

97%

#220

Athlon PRO 300GE

MSRP: $50|Avg: $50

97%

#221

Athlon Gold 3150G

MSRP: $100|Avg: $80

97%

#222

Core i7-9800X

MSRP: $589|Avg: $210

97%

#223

Ryzen 7 4700G

MSRP: $299|Avg: $235

96%

#224

Ryzen 9 5900

MSRP: $549|Avg: $395

96%

#225

Ryzen 5 7600X3D

MSRP: $299|Avg: $300

96%

#226

Ryzen 5 1600X

MSRP: $249|Avg: $144

59%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Mobile Pentium 4 2.66

#759

Atom x5-Z8300

MSRP: $20|Avg: N/A

1114%

#760

Atom Z3735G

MSRP: $17|Avg: N/A

1098%

#761

Core i5-480M

MSRP: $81|Avg: $77

1008%

#762

Core i5-460M

MSRP: $80|Avg: $129

1003%

#763

Core i5-2540M

MSRP: $266|Avg: $10

994%

#765

Core i5-450M

MSRP: $32|Avg: $31

960%

#766

Core i3-380M

MSRP: $49|Avg: $25

921%

#767

Core i5-430M

MSRP: N/A|Avg: $33

919%

#768

Core 2 Duo T6600

MSRP: N/A|Avg: $4

894%

#771

Mobile Pentium 4 2.66

MSRP: N/A|Avg: N/A

100%

#772

Core i7-9750HF

MSRP: $395|Avg: $395

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 Ryzen 7 7800X3D (2023) utilizes 5 nm technology and DDR5-5200, providing a fundamental performance advantage.

Insight	Ryzen 7 7800X3D	Mobile Pentium 4 2.66
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($384)	✅ More affordable ($0)
Longevity	✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm)	🛑 Legacy (Northwood (2002−2004) / 130 nm)

💎 Value Proposition

The Mobile Pentium 4 2.66 (2003) relies on 130 nm technology and DDR1, DDR2, placing it in a different performance category relative to modern standards.

Insight	Ryzen 7 7800X3D	Mobile Pentium 4 2.66
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($384)	✅ 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.

Ryzen 7 7800X3D Benchmark Check

Mobile Pentium 4 2.66 Benchmark Check

Technical Specifications

Side-by-side comparison of Ryzen 7 7800X3D and Mobile Pentium 4 2.66

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

Mobile Pentium 4 2.66

The Mobile Pentium 4 2.66 is manufactured by Intel. It was released in Junho 2003 (22 years ago). It is based on the Northwood (2002−2004) architecture. It features 1 cores and 2 threads. Max frequency: 2.67 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 66 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 395 points. Launch price was $69.

⚡

Processing Power

The Ryzen 7 7800X3D packs 8 cores / 16 threads, while the Mobile Pentium 4 2.66 offers 1 cores / 2 threads — the Ryzen 7 7800X3D has 7 more cores. Boost clocks reach 5 GHz on the Ryzen 7 7800X3D versus 2.67 GHz on the Mobile Pentium 4 2.66 — a 60.8% clock advantage for the Ryzen 7 7800X3D. The Ryzen 7 7800X3D uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Mobile Pentium 4 2.66 uses Northwood (2002−2004) (130 nm). In PassMark, the Ryzen 7 7800X3D scores 34,293 against the Mobile Pentium 4 2.66's 395 — a 195.4% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 2,700 vs 800, a 108.6% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. Multi-core Geekbench: 15,000 vs 800 (179.7% advantage for the Ryzen 7 7800X3D). L3 cache: 96 MB (total) on the Ryzen 7 7800X3D vs 0 kB on the Mobile Pentium 4 2.66.

Feature	Ryzen 7 7800X3D	Mobile Pentium 4 2.66
Cores / Threads	8 / 16+700%	1 / 2
Boost Clock	5 GHz+87%	2.67 GHz
Base Clock	4.4 GHz	—
L3 Cache	96 MB (total)	0 kB
L2 Cache	1 MB (per core)+100%	512 kB
Process	5 nm-96%	130 nm
Architecture	Raphael (Zen4) (2022−2023)	Northwood (2002−2004)
PassMark	34,293+8582%	395
Cinebench R23 Multi	18,500	—
Geekbench 6 Single	2,700+238%	800
Geekbench 6 Multi	15,000+1775%	800

🧠

Memory & Platform

The Ryzen 7 7800X3D uses the AM5 socket (PCIe 5.0), while the Mobile Pentium 4 2.66 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 7 7800X3D versus DDR2 on the Mobile Pentium 4 2.66 — the Ryzen 7 7800X3D supports 85.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7800X3D supports up to 128 GB of RAM compared to 4 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 7 7800X3D) vs 1 (Mobile Pentium 4 2.66). PCIe lanes: 28 (Ryzen 7 7800X3D) vs 0 (Mobile Pentium 4 2.66) — the Ryzen 7 7800X3D offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D) and 852PM,855PM (Mobile Pentium 4 2.66).

Feature	Ryzen 7 7800X3D	Mobile Pentium 4 2.66
Socket	AM5	PGA478
PCIe Generation	PCIe 5.0+355%	PCIe 1.1
Max RAM Speed	DDR5-5200+150%	DDR2
Max RAM Capacity	128 GB+3100%	4 GB
RAM Channels	2+100%	1
ECC Support	✅	❌
PCIe Lanes	28	0

🔧

Advanced Features

Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 7800X3D) vs None (Mobile Pentium 4 2.66). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Mobile Pentium 4 2.66 requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming, Mobile Pentium 4 2.66 targets Legacy Laptop. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.