Celeron N3450 vs Core 2 Duo T5800

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.

Celeron N3450 vs Core 2 Duo T5800 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Celeron N3450 vs Core 2 Duo T5800: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Celeron N3450

2016

Why buy it

✅Better for gaming: +4.1% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (6 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 500, while Core 2 Duo T5800 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,981 vs 2,000).
❌200% higher power demand at 6W vs 2W.

Core 2 Duo T5800

2008

Why buy it

✅+1% higher PassMark.
✅Draws 2W instead of 6W, a 4W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Celeron N3450 across 50 shared CPU benchmark tests.
❌No integrated graphics, while Celeron N3450 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core 2 Duo T5800 better than Celeron N3450?

It depends on what you want from the system. For gaming, Celeron N3450 is ahead with a 4.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core 2 Duo T5800 pulls ahead with 1% better PassMark.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core 2 Duo T5800 is the stronger fit. You are getting 1% better PassMark, backed by 2 cores and 2 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core 2 Duo T5800 still makes the most sense overall. Core 2 Duo T5800 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1% better PassMark.

Which one is more future-proof for 2026 and beyond?

Celeron N3450 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2008). That makes it the safer long-term bet.

Celeron N3450 vs Core 2 Duo T5800 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Celeron N3450

The Celeron N3450 is manufactured by Intel. It was released in 30 August 2016 (9 years ago). It is based on the Apollo Lake (2014−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 2.2 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1296. Thermal design power (TDP): 6 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,981 points. Launch price was $107.

Core 2 Duo T5800

The Core 2 Duo T5800 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,000 points. Launch price was $249.

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Processing Power

The Celeron N3450 packs 4 cores / 4 threads, while the Core 2 Duo T5800 offers 2 cores / 2 threads — the Celeron N3450 has 2 more cores. Boost clocks reach 2.2 GHz on the Celeron N3450 versus 2 GHz on the Core 2 Duo T5800 — a 9.5% clock advantage for the Celeron N3450 (base: 1.1 GHz vs 2 GHz). The Celeron N3450 uses the Apollo Lake (2014−2016) architecture (14 nm), while the Core 2 Duo T5800 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron N3450 scores 1,981 against the Core 2 Duo T5800's 2,000 — a 1% lead for the Core 2 Duo T5800. L3 cache: 0 kB on the Celeron N3450 vs 2 MB L2 Cache on the Core 2 Duo T5800.

Feature	Celeron N3450	Core 2 Duo T5800
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	2.2 GHz+10%	2 GHz
Base Clock	1.1 GHz	2 GHz+82%
L3 Cache	0 kB	2 MB L2 Cache
L2 Cache	2 MB	2 MB
Process	14 nm-78%	65 nm
Architecture	Apollo Lake (2014−2016)	Merom (2006−2008)
PassMark	1,981	2,000

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Memory & Platform

The Celeron N3450 uses the FCBGA1296 socket (PCIe 3.0), while the Core 2 Duo T5800 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron N3450	Core 2 Duo T5800
Socket	FCBGA1296	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	2400	—
Max RAM Capacity	8	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	6	—

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Advanced Features

Virtualization: true (Celeron N3450) / not specified (Core 2 Duo T5800). The Celeron N3450 includes integrated graphics (Intel HD Graphics 500), while the Core 2 Duo T5800 requires a dedicated GPU. Direct competitor: Celeron N3450 rivals AMD A4-9120.