Celeron 3755U vs Core 2 Duo T9800

CPU

GPU

Celeron 3755U

2 Cores2 Thrd15 WWMax: 1.7 GHz2015

Core 2 Duo T9800

2 Cores2 Thrd6 WWMax: 2.92 GHz2009

Performance Spectrum - CPU

Celeron 3755U

2 / 2

1,182

0.0%

1,189

+0.6%

Celeron E1200

Celeron B820

Celeron P4505

Celeron Dual-Core T1700

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 Celeron 3755U is positioned at rank 348 and the Core 2 Duo T9800 is on rank 345, so the Core 2 Duo T9800 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 Celeron 3755U

#101

Core i5-1350P

MSRP: $320|Avg: $250

99%

#102

Core i3-1220P

MSRP: $250|Avg: $150

98%

#107

Core Ultra 5 228V

MSRP: $295|Avg: $295

97%

#336

Atom x5-Z8300

MSRP: $20|Avg: N/A

496%

#337

Atom Z3735G

MSRP: $17|Avg: N/A

489%

#338

Core i5-480M

MSRP: $81|Avg: $77

449%

#339

Core i5-460M

MSRP: $80|Avg: $129

447%

#340

Core i5-2540M

MSRP: $266|Avg: $10

443%

#342

Core i5-450M

MSRP: $32|Avg: $31

428%

#343

Core i3-380M

MSRP: $49|Avg: $25

410%

#344

Core i5-430M

MSRP: N/A|Avg: $33

409%

#345

Core 2 Duo T6600

MSRP: N/A|Avg: $4

398%

#348

Celeron 3755U

MSRP: N/A|Avg: N/A

100%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo T9800

#101

Core i5-1350P

MSRP: $320|Avg: $250

99%

#102

Core i3-1220P

MSRP: $250|Avg: $150

98%

#333

Atom x5-Z8300

MSRP: $20|Avg: N/A

494%

#334

Atom Z3735G

MSRP: $17|Avg: N/A

486%

#335

Core i5-480M

MSRP: $81|Avg: $77

446%

#336

Core i5-460M

MSRP: $80|Avg: $129

444%

#337

Core i5-2540M

MSRP: $266|Avg: $10

440%

#339

Core i5-450M

MSRP: $32|Avg: $31

425%

#340

Core i3-380M

MSRP: $49|Avg: $25

408%

#341

Core i5-430M

MSRP: N/A|Avg: $33

407%

#342

Core 2 Duo T6600

MSRP: N/A|Avg: $4

396%

#345

Core 2 Duo T9800

MSRP: N/A|Avg: N/A

100%

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 Celeron 3755U (2015) utilizes 14 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Celeron 3755U	Core 2 Duo T9800
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Broadwell-U (2015) / 14 nm)	🛑 Legacy (Penryn (2008−2011) / 45 nm)

💎 Value Proposition

The Core 2 Duo T9800 (2009) relies on 45 nm technology and older memory, placing it in a different performance category relative to modern standards.

Insight	Celeron 3755U	Core 2 Duo T9800
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

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.

Celeron 3755U Benchmark Check

Core 2 Duo T9800 Benchmark Check

Technical Specifications

Side-by-side comparison of Celeron 3755U and Core 2 Duo T9800

Celeron 3755U

The Celeron 3755U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,182 points. Launch price was $107.

Core 2 Duo T9800

The Core 2 Duo T9800 is manufactured by Intel. It was released in 1 January 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.93 GHz, with boost up to 2.92 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,189 points. Launch price was $530.

⚡

Processing Power

Both the Celeron 3755U and Core 2 Duo T9800 share an identical 2-core/2-thread configuration. Boost clocks reach 1.7 GHz on the Celeron 3755U versus 2.92 GHz on the Core 2 Duo T9800 — a 52.8% clock advantage for the Core 2 Duo T9800 (base: 1.7 GHz vs 2.93 GHz). The Celeron 3755U uses the Broadwell-U (2015) architecture (14 nm), while the Core 2 Duo T9800 uses Penryn (2008−2011) (45 nm). In PassMark, the Celeron 3755U scores 1,182 against the Core 2 Duo T9800's 1,189 — a 0.6% lead for the Core 2 Duo T9800. L3 cache: 2 MB (total) on the Celeron 3755U vs 6 MB L2 Cache on the Core 2 Duo T9800.

Feature	Celeron 3755U	Core 2 Duo T9800
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.7 GHz	2.92 GHz+72%
Base Clock	1.7 GHz	2.93 GHz+72%
L3 Cache	2 MB (total)	6 MB L2 Cache+200%
L2 Cache	256K (per core)	6 MB+2300%
Process	14 nm-69%	45 nm
Architecture	Broadwell-U (2015)	Penryn (2008−2011)
PassMark	1,182	1,189
Geekbench 6 Multi	625	—

🧠

Memory & Platform

The Celeron 3755U uses the FCBGA1168 socket (PCIe 3.0), while the Core 2 Duo T9800 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron 3755U	Core 2 Duo T9800
Socket	FCBGA1168	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR3L-1600	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	12	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Celeron 3755U) / not specified (Core 2 Duo T9800). The Celeron 3755U includes integrated graphics (HD Graphics (Broadwell)), while the Core 2 Duo T9800 requires a dedicated GPU. Primary use case: Celeron 3755U targets Budget. Direct competitor: Celeron 3755U rivals Pentium 3825U.