Core 2 Extreme X9100 vs Celeron M 585

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 Core 2 Extreme X9100 is positioned at rank 277 and the Celeron M 585 is on rank 430, so the Core 2 Extreme X9100 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 Core 2 Extreme X9100

#82

Core i7-11700B

MSRP: $323|Avg: $311

97%

#265

Atom x5-Z8300

MSRP: $20|Avg: N/A

427%

#266

Atom Z3735G

MSRP: $17|Avg: N/A

420%

#267

Core i5-480M

MSRP: $81|Avg: $77

386%

#268

Core i5-460M

MSRP: $80|Avg: $129

384%

#269

Core i5-2540M

MSRP: $266|Avg: $10

381%

#271

Core i5-450M

MSRP: $32|Avg: $31

368%

#272

Core i3-380M

MSRP: $49|Avg: $25

352%

#273

Core i5-430M

MSRP: N/A|Avg: $33

352%

#274

Core 2 Duo T6600

MSRP: N/A|Avg: $4

342%

#277

Core 2 Extreme X9100

MSRP: $851|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron M 585

#418

Atom x5-Z8300

MSRP: $20|Avg: N/A

569%

#419

Atom Z3735G

MSRP: $17|Avg: N/A

561%

#420

Core i5-480M

MSRP: $81|Avg: $77

515%

#421

Core i5-460M

MSRP: $80|Avg: $129

513%

#422

Core i5-2540M

MSRP: $266|Avg: $10

508%

#424

Core i5-450M

MSRP: $32|Avg: $31

490%

#425

Core i3-380M

MSRP: $49|Avg: $25

470%

#426

Core i5-430M

MSRP: N/A|Avg: $33

469%

#427

Core 2 Duo T6600

MSRP: N/A|Avg: $4

457%

#430

Celeron M 585

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Celeron M 585 leads in gaming performance. However, the Core 2 Extreme X9100 is the stronger candidate for professional workloads, offering 0% greater multi-core processing power.

Insight	Core 2 Extreme X9100	Celeron M 585
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($851)	✅ More affordable ($0)
Longevity	🛑 Legacy (Penryn XE (2008) / 45 nm)	🛑 Legacy (Merom (2006−2008) / 65 nm)

💎 Value Proposition

Insight	Core 2 Extreme X9100	Celeron M 585
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($851)	✅ 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.

Core 2 Extreme X9100 Benchmark Check

Celeron M 585 Benchmark Check

Technical Specifications

Side-by-side comparison of Core 2 Extreme X9100 and Celeron M 585

Core 2 Extreme X9100

The Core 2 Extreme X9100 is manufactured by Intel. It was released in 1 July 2008 (17 years ago). It is based on the Penryn XE (2008) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 0 kB. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,063 points. Launch price was $851.

Celeron M 585

The Celeron M 585 is manufactured by Intel. It was released in 20 August 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2.16 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,062 points. Launch price was $70.

⚡

Processing Power

The Core 2 Extreme X9100 packs 2 cores / 2 threads, while the Celeron M 585 offers 1 cores / 1 threads — the Core 2 Extreme X9100 has 1 more core. Boost clocks reach 0.07 GHz on the Core 2 Extreme X9100 versus 2.16 GHz on the Celeron M 585 — a 187.4% clock advantage for the Celeron M 585. The Core 2 Extreme X9100 uses the Penryn XE (2008) architecture (45 nm), while the Celeron M 585 uses Merom (2006−2008) (65 nm). In PassMark, the Core 2 Extreme X9100 scores 2,063 against the Celeron M 585's 2,062 — a 0% lead for the Core 2 Extreme X9100.

Feature	Core 2 Extreme X9100	Celeron M 585
Cores / Threads	2 / 2+100%	1 / 1
Boost Clock	0.07 GHz	2.16 GHz+2986%
Base Clock	3.06 GHz	—
L3 Cache	0 kB	—
L2 Cache	6 MB+500%	1 MB
Process	45 nm-31%	65 nm
Architecture	Penryn XE (2008)	Merom (2006−2008)
PassMark	2,063	2,062

🧠

Memory & Platform

Both processors use the PGA478 socket with PCIe 1.1.

Feature	Core 2 Extreme X9100	Celeron M 585
Socket	PGA478	PGA478
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	—	800
Max RAM Capacity	—	4
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	0

🔧

Advanced Features

Virtualization: not specified (Core 2 Extreme X9100) / false (Celeron M 585). Direct competitor: Celeron M 585 rivals Mobile Sempron SI-40.