Core i7-6600U vs Xeon W3565

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 i7-6600U is positioned at rank 925 and the Xeon W3565 is on rank 827, so the Xeon W3565 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 i7-6600U

#913

Atom x5-Z8300

MSRP: $20|Avg: N/A

1636%

#914

Atom Z3735G

MSRP: $17|Avg: N/A

1612%

#915

Core i5-480M

MSRP: $81|Avg: $77

1480%

#916

Core i5-460M

MSRP: $80|Avg: $129

1474%

#917

Core i5-2540M

MSRP: $266|Avg: $10

1460%

#919

Core i5-450M

MSRP: $32|Avg: $31

1410%

#920

Core i3-380M

MSRP: $49|Avg: $25

1352%

#921

Core i5-430M

MSRP: N/A|Avg: $33

1350%

#922

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1313%

#925

Core i7-6600U

MSRP: N/A|Avg: N/A

100%

#928

A8-6410

MSRP: $100|Avg: $40

99%

#933

Athlon X2 L310

MSRP: $100|Avg: $20

97%

#939

FX-7600P

MSRP: $150|Avg: $45

95%

#940

Athlon II M300

MSRP: $100|Avg: $10

95%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Xeon W3565

#1

Xeon Platinum 8454H

MSRP: $6540|Avg: N/A

18025%

#6

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

3403%

#10

Xeon 6337P

MSRP: $60|Avg: $5

3024%

#15

EPYC 9174F

MSRP: $194|Avg: $30

2336%

#469

EPYC 9554

MSRP: $9087|Avg: $2795

100%

#470

Xeon Gold 6338T

MSRP: $3139|Avg: $1795

99%

#471

Xeon E5-2650 v4

MSRP: $1166|Avg: $45

99%

#472

EPYC 9845

MSRP: $13564|Avg: $8670

98%

#473

EPYC 7F32

MSRP: $2100|Avg: $179

96%

#474

EPYC 9654P

MSRP: $10625|Avg: $5345

95%

#475

EPYC 9965

MSRP: $14813|Avg: $10000

94%

#827

Xeon W3565

MSRP: $294|Avg: $69

100%

#837

Xeon W3550

MSRP: $294|Avg: $30

96%

#839

Xeon E5-2450

MSRP: $694|Avg: $795

94%

#840

Xeon E5-2630L v2

MSRP: $612|Avg: $149

94%

#842

Xeon E3-1246 v3

MSRP: $667|Avg: $215

94%

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 Core i7-6600U (2015) utilizes 14 nm technology and DDR3, DDR4, providing a fundamental performance advantage.

Insight	Core i7-6600U	Xeon W3565
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	✅ More affordable ($0)	⚠️ Higher cost ($69)
Longevity	🛑 Legacy (Skylake (2015−2016) / 14 nm)	🛑 Legacy (Bloomfield (2008−2010) / 45 nm)

💎 Value Proposition

The Xeon W3565 (2009) relies on 45 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Core i7-6600U	Xeon W3565
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($69)

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 i7-6600U Benchmark Check

Xeon W3565 Benchmark Check

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Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-6600U and Xeon W3565

Core i7-6600U

The Core i7-6600U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 3,407 points. Launch price was $393.

Xeon W3565

The Xeon W3565 is manufactured by Intel. It was released in 1 November 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 3.2 GHz, with boost up to 3.46 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,391 points. Launch price was $70.

⚡

Processing Power

The Core i7-6600U packs 2 cores / 4 threads, while the Xeon W3565 offers 4 cores / 8 threads — the Xeon W3565 has 2 more cores. Boost clocks reach 3.4 GHz on the Core i7-6600U versus 3.46 GHz on the Xeon W3565 — a 1.7% clock advantage for the Xeon W3565 (base: 2.6 GHz vs 3.2 GHz). The Core i7-6600U uses the Skylake (2015−2016) architecture (14 nm), while the Xeon W3565 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core i7-6600U scores 3,407 against the Xeon W3565's 3,391 — a 0.5% lead for the Core i7-6600U. L3 cache: 4 MB on the Core i7-6600U vs 8 MB (total) on the Xeon W3565.

Feature	Core i7-6600U	Xeon W3565
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	3.4 GHz	3.46 GHz+2%
Base Clock	2.6 GHz	3.2 GHz+23%
L3 Cache	4 MB	8 MB (total)+100%
L2 Cache	512 kB+100%	256 kB (per core)
Process	14 nm-69%	45 nm
Architecture	Skylake (2015−2016)	Bloomfield (2008−2010)
PassMark	3,407	3,391
Geekbench 6 Single	—	513
Geekbench 6 Multi	—	1,726

🧠

Memory & Platform

The Core i7-6600U uses the BGA1356 socket (PCIe 3.0), while the Xeon W3565 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i7-6600U	Xeon W3565
Socket	BGA1356	LGA1366
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	—	DDR3-1066
Max RAM Capacity	—	24 GB
RAM Channels	—	3
ECC Support	—	✅
PCIe Lanes	—	36