Core 2 Duo E8400 vs Pentium T4400

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.

Core 2 Duo E8400 vs Pentium T4400 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.

Core 2 Duo E8400 vs Pentium T4400: Pros, Cons & Final Verdict

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

Core 2 Duo E8400

2008

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (true), unlike Pentium T4400.

Trade-offs

❌Lower PassMark (1,165 vs 1,175).
❌85.7% higher power demand at 65W vs 35W.

Pentium T4400

2009

Why buy it

✅Draws 35W instead of 65W, a 30W reduction.

Trade-offs

❌Launch MSRP is still $107 MSRP, while Core 2 Duo E8400 mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike Core 2 Duo E8400.

Quick Answers

So, is Pentium T4400 better than Core 2 Duo E8400?

Yes. Pentium T4400 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data, 0.9% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Pentium T4400 is the better pick. According to our tests, it delivers 0.2% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Pentium T4400 is the stronger fit. You are getting 0.9% better PassMark.

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

Pentium T4400 is the better buy right now. Pentium T4400 comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (11.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium T4400 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2008). That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Duo E8400 vs Pentium T4400 Technical Specifications

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

Core 2 Duo E8400

The Core 2 Duo E8400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,165 points. Launch price was $249.

Pentium T4400

The Pentium T4400 is manufactured by Intel. It was released in 2007-01-01. Base frequency: 2.2 GHz. L3 cache: 1 MB L2 Cache. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,175 points. Launch price was $69.

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Processing Power

The Core 2 Duo E8400 is built on the Wolfdale (2008−2010) architecture. In PassMark, the Core 2 Duo E8400 scores 1,165 against the Pentium T4400's 1,175 — a 0.9% lead for the Pentium T4400. L3 cache: 0 kB on the Core 2 Duo E8400 vs 1 MB L2 Cache on the Pentium T4400.

Feature	Core 2 Duo E8400	Pentium T4400
Cores / Threads	2 / 2	—
Boost Clock	3 GHz	—
Base Clock	3 GHz+36%	2.2 GHz
L3 Cache	0 kB	1 MB L2 Cache
L2 Cache	6 MB (total)	—
Process	45 nm	45 nm
Architecture	Wolfdale (2008−2010)	—
PassMark	1,165	1,175
Geekbench 6 Single	—	249

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Memory & Platform

The Core 2 Duo E8400 uses the LGA775 socket (PCIe 1.1), while the Pentium T4400 uses PGA478 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Core 2 Duo E8400 versus DDR3-800 on the Pentium T4400 — the Core 2 Duo E8400 supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E8400 supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core 2 Duo E8400) vs 0 (Pentium T4400) — the Core 2 Duo E8400 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: P35,G31,G33,P45 (Core 2 Duo E8400) and GL40,GM45 (Pentium T4400).

Feature	Core 2 Duo E8400	Pentium T4400
Socket	LGA775	PGA478
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	1333+67%	DDR3-800
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

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Advanced Features

Neither processor supports overclocking. Virtualization support: true (Core 2 Duo E8400) vs None (Pentium T4400). Primary use case: Pentium T4400 targets Budget. Direct competitor: Core 2 Duo E8400 rivals Phenom II X2 550; Pentium T4400 rivals AMD A4-3300M.