Xeon E5440 vs Core 2 Duo T6670

Xeon E5440

4 Cores4 Thrd80 WWMax: 0.83 GHz2007

Core 2 Duo T6670

2 Cores2 Thrd2 WWMax: 2.2 GHz2009

Performance Spectrum - CPU

Xeon E5440

4 / 4

2,367

+0.1%

2,365

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 Xeon E5440 is positioned at rank 1008 and the Core 2 Duo T6670 is on rank 474, so the Core 2 Duo T6670 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 Xeon E5440

Xeon Platinum 8454H

MSRP: $6540|Avg: N/A

60590%

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

11440%

#10

Xeon 6337P

MSRP: $60|Avg: $5

10164%

#15

EPYC 9174F

MSRP: $194|Avg: $30

7852%

#540

Xeon E7-8891 v3

MSRP: $6841|Avg: $418

92%

#541

Xeon E5-4669 v4

MSRP: $7007|Avg: $300

73%

#1008

Xeon E5440

MSRP: $690|Avg: $37

100%

#1009

Xeon E5-2643

MSRP: $1552|Avg: $50

98%

#1010

Xeon E5-2637

MSRP: $885|Avg: $40

98%

#1011

Xeon W3570

MSRP: $999|Avg: $15

95%

#1013

Xeon E5-4620

MSRP: $2141|Avg: $400

90%

#1014

Xeon E5-2680

MSRP: $3226|Avg: $40

84%

#1016

Xeon E5-4640

MSRP: $2725|Avg: N/A

75%

#1018

Xeon E5-4650

MSRP: $3616|Avg: $71

69%

#1019

Xeon E5-4655 v4

MSRP: $4616|Avg: N/A

69%

#1020

Xeon E5-4650L

MSRP: $3616|Avg: N/A

69%

#1021

Xeon E-2224

MSRP: $3226|Avg: $195

65%

#1022

Athlon MP 2400+

MSRP: $151|Avg: $20

59%

#1023

Xeon E5-2650L v2

MSRP: $4115|Avg: $1078

54%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo T6670

#462

Atom x5-Z8300

MSRP: $20|Avg: N/A

620%

#463

Atom Z3735G

MSRP: $17|Avg: N/A

611%

#464

Core i5-480M

MSRP: $81|Avg: $77

561%

#465

Core i5-460M

MSRP: $80|Avg: $129

559%

#466

Core i5-2540M

MSRP: $266|Avg: $10

553%

#468

Core i5-450M

MSRP: $32|Avg: $31

534%

#469

Core i3-380M

MSRP: $49|Avg: $25

512%

#470

Core i5-430M

MSRP: N/A|Avg: $33

512%

#471

Core 2 Duo T6600

MSRP: N/A|Avg: $4

498%

#474

Core 2 Duo T6670

MSRP: N/A|Avg: N/A

100%

#488

Processor U300

MSRP: $193|Avg: $180

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Use Case Distinction: This is a comparison between a Professional Workstation processor ($37) and a Consumer Desktop CPU. The Xeon E5440 is engineered for massive parallel workloads (rendering, scientific simulations), offering significantly higher core counts.

Insight	Xeon E5440	Core 2 Duo T6670
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	⚠️ Higher cost ($37)	✅ More affordable ($0)
Longevity	🛑 Legacy (Harpertown (2007−2008) / 45 nm)	🛑 Legacy (Penryn (2008−2011) / 45 nm)

💎 Value Proposition

The Core 2 Duo T6670 ($0), however, is optimized for mixed workloads and gaming. For most users, it offers superior single-thread performance and responsiveness at a fraction of the cost ($37 less, 100% cheaper), making it the better choice for daily use and gaming.

Insight	Xeon E5440	Core 2 Duo T6670
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	⚠️ Higher cost ($37)	✅ 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.

Xeon E5440 Benchmark Check

Core 2 Duo T6670 Benchmark Check

Technical Specifications

Side-by-side comparison of Xeon E5440 and Core 2 Duo T6670

Xeon E5440

The Xeon E5440 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.83 GHz, with boost up to 0.83 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,367 points. Launch price was $690.

Core 2 Duo T6670

The Core 2 Duo T6670 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,365 points. Launch price was $249.

⚡

Processing Power

The Xeon E5440 packs 4 cores / 4 threads, while the Core 2 Duo T6670 offers 2 cores / 2 threads — the Xeon E5440 has 2 more cores. Boost clocks reach 0.83 GHz on the Xeon E5440 versus 2.2 GHz on the Core 2 Duo T6670 — a 90.4% clock advantage for the Core 2 Duo T6670 (base: 2.83 GHz vs 2.2 GHz). The Xeon E5440 uses the Harpertown (2007−2008) architecture (45 nm), while the Core 2 Duo T6670 uses Penryn (2008−2011) (45 nm). In PassMark, the Xeon E5440 scores 2,367 against the Core 2 Duo T6670's 2,365 — a 0.1% lead for the Xeon E5440. L3 cache: 12 MB L2 Cache on the Xeon E5440 vs 2 MB L2 Cache on the Core 2 Duo T6670.

Feature	Xeon E5440	Core 2 Duo T6670
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	0.83 GHz	2.2 GHz+165%
Base Clock	2.83 GHz+29%	2.2 GHz
L3 Cache	12 MB L2 Cache+500%	2 MB L2 Cache
L2 Cache	6 MB (total)+200%	2 MB
Process	45 nm	45 nm
Architecture	Harpertown (2007−2008)	Penryn (2008−2011)
PassMark	2,367	2,365
Geekbench 6 Single	—	252
Geekbench 6 Multi	—	252

🧠

Memory & Platform

The Xeon E5440 uses the LGA771 socket (PCIe 2.0), while the Core 2 Duo T6670 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Xeon E5440	Core 2 Duo T6670
Socket	LGA771	PGA478
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	—	DDR3-1066
Max RAM Capacity	—	8 GB
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	0

🔧

Advanced Features

Virtualization: not specified (Xeon E5440) / VT-x (Core 2 Duo T6670). Primary use case: Core 2 Duo T6670 targets Budget. Direct competitor: Core 2 Duo T6670 rivals Core 2 Duo T6600.