Atom Z510 vs Pentium III 1266S

Atom Z510

1 Cores1 Thrd2 WWMax: 1.1 GHz2008

Pentium III 1266S

1 Cores1 Thrd30 WWMax: 1.27 GHz2001

Performance Spectrum - CPU

Atom Z510

1 / 1

185

0.0%

210

+13.5%

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 Atom Z510 is positioned at rank 1214 and the Pentium III 1266S is on rank 1140, so the Pentium III 1266S 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 Atom Z510

#1202

Atom x5-Z8300

MSRP: $20|Avg: N/A

6337%

#1203

Atom Z3735G

MSRP: $17|Avg: N/A

6244%

#1204

Core i5-480M

MSRP: $81|Avg: $77

5732%

#1205

Core i5-460M

MSRP: $80|Avg: $129

5706%

#1206

Core i5-2540M

MSRP: $266|Avg: $10

5654%

#1208

Core i5-450M

MSRP: $32|Avg: $31

5460%

#1209

Core i3-380M

MSRP: $49|Avg: $25

5235%

#1210

Core i5-430M

MSRP: N/A|Avg: $33

5227%

#1211

Core 2 Duo T6600

MSRP: N/A|Avg: $4

5086%

#1214

Atom Z510

MSRP: N/A|Avg: N/A

100%

#1216

Core 2 Quad Q9000

MSRP: $348|Avg: $15

99%

#1217

Core i5-2537M

MSRP: $250|Avg: N/A

99%

#1218

Core i7-720QM

MSRP: $364|Avg: N/A

98%

#1219

Pentium U5400

MSRP: $289|Avg: $214

96%

#1220

Pentium T2330

MSRP: $150|Avg: $7

96%

#1221

Z-01

MSRP: $50|Avg: $10

93%

#1222

Pentium T2310

MSRP: $150|Avg: $14

90%

#1223

Celeron SU2300

MSRP: $134|Avg: $134

88%

#1224

Core i5-560UM

MSRP: $250|Avg: N/A

88%

#1225

Core i7-660UM

MSRP: $317|Avg: N/A

87%

#1226

C-30

MSRP: $50|Avg: $15

87%

#1228

Core i7-620UM

MSRP: $278|Avg: N/A

85%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Pentium III 1266S

Ryzen 9 7950X

MSRP: $194|Avg: $20

546868%

Core i9-10900T

MSRP: $120|Avg: $5

516737%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

375193%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

113030%

Ryzen 9 9950X

MSRP: $649|Avg: $129

89532%

Ryzen 5 8400F

MSRP: $303|Avg: $55

78323%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

44860%

Ryzen 5 2600X

MSRP: $229|Avg: $55

44274%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

40312%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

40309%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

39858%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

38782%

#13

Core i3-9100E

MSRP: $202|Avg: $30

38240%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

38086%

#15

Core i3-8300T

MSRP: $138|Avg: $25

37740%

#1140

Pentium III 1266S

MSRP: $369|Avg: $20

100%

#1141

Pentium 4 1.80

MSRP: $562|Avg: $40

70%

#1142

Pentium III 1133

MSRP: $990|Avg: $30

32%

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 Atom Z510 (2008) utilizes 45 nm technology and modern memory, providing a fundamental performance advantage.

Insight	Atom Z510	Pentium III 1266S
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($20)
Longevity	🛑 Legacy (Silverthorne (2008−2010) / 45 nm)	🛑 Legacy (Tualatin (2000−2002) / 130 nm)

💎 Value Proposition

The Pentium III 1266S (2001) relies on 130 nm technology and older memory, placing it in a different performance category relative to modern standards.

Insight	Atom Z510	Pentium III 1266S
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ 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.

Atom Z510 Benchmark Check

Pentium III 1266S Benchmark Check

Technical Specifications

Side-by-side comparison of Atom Z510 and Pentium III 1266S

Atom Z510

The Atom Z510 is manufactured by Intel. It was released in 2 April 2008 (17 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 1 threads. Base frequency is 1.1 GHz, with boost up to 1.1 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2 Watt. Passmark benchmark score: 185 points. Launch price was $20.

Pentium III 1266S

The Pentium III 1266S is manufactured by Intel. It was released in 2007-01-01. It is based on the Tualatin (2000−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.27 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA370. Thermal design power (TDP): 30 Watt. Passmark benchmark score: 210 points. Launch price was $69.

⚡

Processing Power

Both the Atom Z510 and Pentium III 1266S share an identical 1-core/1-thread configuration. Boost clocks reach 1.1 GHz on the Atom Z510 versus 1.27 GHz on the Pentium III 1266S — a 14.3% clock advantage for the Pentium III 1266S. The Atom Z510 uses the Silverthorne (2008−2010) architecture (45 nm), while the Pentium III 1266S uses Tualatin (2000−2002) (130 nm). In PassMark, the Atom Z510 scores 185 against the Pentium III 1266S's 210 — a 12.7% lead for the Pentium III 1266S. Both processors carry 0 kB of L3 cache.

Feature	Atom Z510	Pentium III 1266S
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.1 GHz	1.27 GHz+15%
Base Clock	1.1 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	512 kB
Process	45 nm-65%	130 nm
Architecture	Silverthorne (2008−2010)	Tualatin (2000−2002)
PassMark	185	210+14%

🧠

Memory & Platform

The Atom Z510 uses the PBGA441 socket (PCIe 2.0), while the Pentium III 1266S uses PGA370 (PCIe 1.1) — making them incompatible on the same motherboard.