Core 2 Quad Q9400 vs Core i5-4200U

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 Quad Q9400 vs Core i5-4200U 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 Quad Q9400 vs Core i5-4200U: 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 Quad Q9400

2008

Why buy it

✅Draws 95W instead of 512W, a 417W reduction.

Trade-offs

❌Lower PassMark (2,160 vs 2,176).
❌Launch MSRP is still $229 MSRP, while Core i5-4200U mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Core i5-4200U can still boot and troubleshoot without a discrete GPU.

Core i5-4200U

2013

Why buy it

✅+0.7% higher PassMark.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 4400, while Core 2 Quad Q9400 needs a discrete GPU.

Trade-offs

❌438.9% higher power demand at 512W vs 95W.

Quick Answers

So, is Core 2 Quad Q9400 better than Core i5-4200U?

It depends on what you want from the system. For gaming, Core 2 Quad Q9400 is ahead with a 1.4% average FPS lead across 29 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-4200U pulls ahead with 0.7% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i5-4200U is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 4 threads.

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

Core 2 Quad Q9400 is the better buy right now. Core 2 Quad Q9400 comes in at an unclear MSRP at $229 MSRP versus unclear MSRP, and it still gives you a 1.4% average FPS lead across 29 shared CPU game tests in our data. The compromise is that Core i5-4200U is still stronger for heavier multi-core work with 0.7% better PassMark. It is also 100.0% better value on MSRP (9.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i5-4200U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2008) and more multi-core headroom with 2 cores / 4 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Quad Q9400 vs Core i5-4200U Technical Specifications

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

Core 2 Quad Q9400

The Core 2 Quad Q9400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yorkfield (2007−2009) architecture. It features 4 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 2.67 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,160 points. Launch price was $249.

Core i5-4200U

The Core i5-4200U is manufactured by Intel. It was released in 4 June 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.6 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,176 points. Launch price was $69.

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Processing Power

The Core 2 Quad Q9400 packs 4 cores / 4 threads, while the Core i5-4200U offers 2 cores / 4 threads — the Core 2 Quad Q9400 has 2 more cores. Boost clocks reach 2.67 GHz on the Core 2 Quad Q9400 versus 2.6 GHz on the Core i5-4200U — a 2.7% clock advantage for the Core 2 Quad Q9400 (base: 2.66 GHz vs 1.6 GHz). The Core 2 Quad Q9400 uses the Yorkfield (2007−2009) architecture (45 nm), while the Core i5-4200U uses Haswell (2013−2015) (22 nm). In PassMark, the Core 2 Quad Q9400 scores 2,160 against the Core i5-4200U's 2,176 — a 0.7% lead for the Core i5-4200U. L3 cache: 0 kB on the Core 2 Quad Q9400 vs 3 MB (total) on the Core i5-4200U.

Feature	Core 2 Quad Q9400	Core i5-4200U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	2.67 GHz+3%	2.6 GHz
Base Clock	2.66 GHz+66%	1.6 GHz
L3 Cache	0 kB	3 MB (total)
L2 Cache	6 MB (total)	256K (per core)+4167%
Process	45 nm	22 nm-51%
Architecture	Yorkfield (2007−2009)	Haswell (2013−2015)
PassMark	2,160	2,176
Geekbench 6 Single	—	733

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Memory & Platform

The Core 2 Quad Q9400 uses the LGA775 socket (PCIe 1.1), while the Core i5-4200U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Core 2 Quad Q9400 versus DDR3L-1600 on the Core i5-4200U — the Core i5-4200U supports 50.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-4200U 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: 0 (Core 2 Quad Q9400) vs 12 (Core i5-4200U) — the Core i5-4200U offers 12 more lanes for additional GPUs or NVMe drives.

Feature	Core 2 Quad Q9400	Core i5-4200U
Socket	LGA775	FCBGA1168
PCIe Generation	PCIe 1.1	PCIe 3.0+173%
Max RAM Speed	DDR3-1066	DDR3L-1600+50%
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	12

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core 2 Quad Q9400) vs VT-x, VT-d, EPT (Core i5-4200U). The Core i5-4200U includes integrated graphics (HD Graphics 4400), while the Core 2 Quad Q9400 requires a dedicated GPU. Primary use case: Core 2 Quad Q9400 targets Desktop, Core i5-4200U targets Thin & Light Laptop. Direct competitor: Core i5-4200U rivals A6-5350M.