Mobile Sempron SI-42 vs Ryzen 7 7800X3D

Mobile Sempron SI-42

1 Cores1 Thrd512 WWMax: 2.1 GHz2009

Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023

Performance Spectrum - CPU

Mobile Sempron SI-42

1 / 1

332

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 7970X

Ryzen 7 7800X3D

8 / 16

34,293

+10229.2%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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. The Mobile Sempron SI-42 is positioned at rank #1175 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Mobile Sempron SI-42

#1163

Atom x5-Z8300

MSRP: $20|Avg: N/A

4419%

#1164

Atom Z3735G

MSRP: $17|Avg: N/A

4354%

#1165

Core i5-480M

MSRP: $81|Avg: $77

3997%

#1166

Core i5-460M

MSRP: $80|Avg: $129

3979%

#1167

Core i5-2540M

MSRP: $266|Avg: $10

3942%

#1169

Core i5-450M

MSRP: $32|Avg: $31

3807%

#1170

Core i3-380M

MSRP: $49|Avg: $25

3651%

#1171

Core i5-430M

MSRP: N/A|Avg: $33

3645%

#1172

Core 2 Duo T6600

MSRP: N/A|Avg: $4

3547%

#1175

Mobile Sempron SI-42

MSRP: N/A|Avg: N/A

100%

#1176

Core i7-2637M

MSRP: $289|Avg: N/A

98%

#1177

Athlon PRO 3045B

MSRP: $426|Avg: $180

98%

#1178

Core 2 Duo SL9600

MSRP: $316|Avg: N/A

98%

#1179

Core 2 Duo T5600

MSRP: $241|Avg: N/A

97%

#1180

Pentium N3510

MSRP: $161|Avg: $161

97%

#1181

Core i7-7Y75

MSRP: $393|Avg: $285

97%

#1183

Core i7-4500U

MSRP: $398|Avg: N/A

94%

#1185

Athlon Neo X2 L325

MSRP: $100|Avg: $5

93%

#1186

Core i3-2370M

MSRP: $225|Avg: N/A

92%

#1187

Core i3-3217UE

MSRP: $225|Avg: $35

91%

#1188

Celeron T3000

MSRP: $150|Avg: $54

91%

#1189

Core m7-6Y75

MSRP: $393|Avg: $393

91%

#1190

Core M-5Y10

MSRP: $281|Avg: $20

88%

Based on actual market prices and performance synthetic scores.

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 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	Mobile Sempron SI-42	Ryzen 7 7800X3D
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($384)
Longevity	🛑 Legacy (Sable (2008−2009) / 65 nm)	✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm)

💎 Value Proposition

The Mobile Sempron SI-42 (2009) relies on 65 nm technology and older memory, placing it in a different performance category relative to modern standards.

Insight	Mobile Sempron SI-42	Ryzen 7 7800X3D
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($384)

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.

Mobile Sempron SI-42 Benchmark Check

Ryzen 7 7800X3D Benchmark Check

Technical Specifications

Side-by-side comparison of Mobile Sempron SI-42 and Ryzen 7 7800X3D

Mobile Sempron SI-42

The Mobile Sempron SI-42 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2.1 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 332 points. Launch price was $69.

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.

⚡

Processing Power

The Mobile Sempron SI-42 packs 1 cores / 1 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 7 more cores. Boost clocks reach 2.1 GHz on the Mobile Sempron SI-42 versus 5 GHz on the Ryzen 7 7800X3D — a 81.7% clock advantage for the Ryzen 7 7800X3D. The Mobile Sempron SI-42 uses the Sable (2008−2009) architecture (65 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Mobile Sempron SI-42 scores 332 against the Ryzen 7 7800X3D's 34,293 — a 196.2% lead for the Ryzen 7 7800X3D.

Feature	Mobile Sempron SI-42	Ryzen 7 7800X3D
Cores / Threads	1 / 1	8 / 16+700%
Boost Clock	2.1 GHz	5 GHz+138%
Base Clock	—	4.4 GHz
L3 Cache	—	96 MB (total)
L2 Cache	512 kB	1 MB (per core)+100%
Process	65 nm	5 nm-92%
Architecture	Sable (2008−2009)	Raphael (Zen4) (2022−2023)
PassMark	332	34,293+10229%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	—	2,700
Geekbench 6 Multi	—	15,000

🧠

Memory & Platform

The Mobile Sempron SI-42 uses the S1g2 socket (PCIe 2.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Mobile Sempron SI-42	Ryzen 7 7800X3D
Socket	S1g2	AM5
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	—	DDR5-5200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	✅
PCIe Lanes	—	28

🔧

Advanced Features

Virtualization: not specified (Mobile Sempron SI-42) / AMD-V (Ryzen 7 7800X3D). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Mobile Sempron SI-42 requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.