Core 2 Duo E4400 vs E2-1800

Core 2 Duo E4400 vs E2-1800 Performance Spectrum

Core 2 Duo E4400

2 / 2

1,095

0.0%

1,110

+1.4%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Core 2 Duo E4400 vs E2-1800 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 E4400 vs E2-1800: 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 E4400

2007

Why buy it

✅Includes a boxed cooler (Yes), unlike E2-1800.

Trade-offs

❌Worse for gaming: lower average FPS than E2-1800 across 47 shared CPU benchmark tests.
❌Lower PassMark (1,095 vs 1,110).
❌Launch MSRP is still $113 MSRP, while E2-1800 mostly shows up through inconsistent older-market listings.
❌261.1% higher power demand at 65W vs 18W.

E2-1800

2012

Why buy it

✅Better for gaming: +3.7% higher average FPS across 47 shared CPU benchmark tests.
✅Draws 18W instead of 65W, a 47W reduction.

Trade-offs

❌No boxed cooler included, unlike Core 2 Duo E4400.

Quick Answers

So, is E2-1800 better than Core 2 Duo E4400?

Yes. E2-1800 is the better all-around CPU here. It gives you a 3.7% average FPS lead across 47 shared CPU game tests in our data, 1.4% 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, E2-1800 is the better pick. According to our tests, it delivers 3.7% more average FPS across 47 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, E2-1800 is the stronger fit. You are getting 1.4% better PassMark, backed by 2 cores and 2 threads.

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

E2-1800 is still the much better call for a fresh build. E2-1800 comes in at an unclear MSRP at unclear MSRP versus $113 MSRP, and it still gives you a 3.7% average FPS lead across 47 shared CPU game tests in our data. Core 2 Duo E4400 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2007 platform. Even with 100.0% better value on paper (9.7 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

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

E2-1800 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2007) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Duo E4400 vs E2-1800 Technical Specifications

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

Core 2 Duo E4400

The Core 2 Duo E4400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Allendale (2006−2009) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,095 points. Launch price was $249.

E2-1800

The E2-1800 is manufactured by AMD. It was released in 2014-01-01. It is based on the Zacate (2011−2013) architecture. It features 2 cores and 2 threads. Max frequency: 1.7 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 40 nm process technology. Socket: FT1. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,110 points. Launch price was $50.

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Processing Power

Both the Core 2 Duo E4400 and E2-1800 share an identical 2-core/2-thread configuration. Boost clocks reach 2 GHz on the Core 2 Duo E4400 versus 1.7 GHz on the E2-1800 — a 16.2% clock advantage for the Core 2 Duo E4400. The Core 2 Duo E4400 uses the Allendale (2006−2009) architecture (65 nm), while the E2-1800 uses Zacate (2011−2013) (40 nm). In PassMark, the Core 2 Duo E4400 scores 1,095 against the E2-1800's 1,110 — a 1.4% lead for the E2-1800. Both processors carry 0 kB of L3 cache.

Feature	Core 2 Duo E4400	E2-1800
Cores / Threads	2 / 2	2 / 2
Boost Clock	2 GHz+18%	1.7 GHz
Base Clock	2 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	2 MB	512K (per core)+25500%
Process	65 nm	40 nm-38%
Architecture	Allendale (2006−2009)	Zacate (2011−2013)
PassMark	1,095	1,110+1%
Geekbench 6 Single	208	—

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Memory & Platform

The Core 2 Duo E4400 uses the LGA775 socket (PCIe 1.1), while the E2-1800 uses FT1 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core 2 Duo E4400	E2-1800
Socket	LGA775	FT1
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-1066	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: None (Core 2 Duo E4400) / not specified (E2-1800). Primary use case: Core 2 Duo E4400 targets Budget. Direct competitor: Core 2 Duo E4400 rivals Athlon II X2 240.