Core 2 Quad Q9400 vs Ryzen 5 5600

Core 2 Quad Q9400 vs Ryzen 5 5600 Performance Spectrum

Core 2 Quad Q9400

4 / 4

2,160

0.0%

21,550

+897.7%

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

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 Quad Q9400 vs Ryzen 5 5600 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 Ryzen 5 5600: 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

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 5600 across 50 shared CPU benchmark tests.
❌Lower PassMark (2,160 vs 21,550).
❌Lower PassMark per dollar, at 9.4 vs 108.3 PassMark/$ ($229 MSRP vs $199 MSRP).
❌46.2% higher power demand at 95W vs 65W.
❌No boxed cooler included, unlike Ryzen 5 5600.

Ryzen 5 5600

2022

Why buy it

✅Better for gaming: +317.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $30 less on MSRP ($199 MSRP vs $229 MSRP).
✅Delivers 1048.1% more PassMark for each dollar spent, at 108.3 vs 9.4 PassMark/$ ($199 MSRP vs $229 MSRP).
✅Draws 65W instead of 95W, a 30W reduction.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Ryzen 5 5600 better than Core 2 Quad Q9400?

Yes. Ryzen 5 5600 is the better all-around CPU here. It gives you a 317.7% average FPS lead across 50 shared CPU game tests in our data, 897.7% 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, Ryzen 5 5600 is the better pick. According to our tests, it delivers 317.7% 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, Ryzen 5 5600 is the stronger fit. You are getting 897.7% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 5600 is the better buy right now. Ryzen 5 5600 comes in $30 cheaper on MSRP at $199 MSRP versus $229 MSRP, and it still gives you a 317.7% average FPS lead across 50 shared CPU game tests in our data. It is also 1048.1% better value on MSRP (108.3 vs 9.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 5 5600 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2008) and more multi-core headroom with 6 cores / 12 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 Ryzen 5 5600 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.

Ryzen 5 5600

The Ryzen 5 5600 is manufactured by AMD. It was released in 20 April 2022 (3 years ago). It is based on the Vermeer (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 21,550 points. Launch price was $299.

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Processing Power

The Core 2 Quad Q9400 packs 4 cores / 4 threads, while the Ryzen 5 5600 offers 6 cores / 12 threads — the Ryzen 5 5600 has 2 more cores. Boost clocks reach 2.67 GHz on the Core 2 Quad Q9400 versus 4.4 GHz on the Ryzen 5 5600 — a 48.9% clock advantage for the Ryzen 5 5600 (base: 2.66 GHz vs 3.5 GHz). The Core 2 Quad Q9400 uses the Yorkfield (2007−2009) architecture (45 nm), while the Ryzen 5 5600 uses Vermeer (2020−2025) (7 nm). In PassMark, the Core 2 Quad Q9400 scores 2,160 against the Ryzen 5 5600's 21,550 — a 163.6% lead for the Ryzen 5 5600. L3 cache: 0 kB on the Core 2 Quad Q9400 vs 32 MB (total) on the Ryzen 5 5600.

Feature	Core 2 Quad Q9400	Ryzen 5 5600
Cores / Threads	4 / 4	6 / 12+50%
Boost Clock	2.67 GHz	4.4 GHz+65%
Base Clock	2.66 GHz	3.5 GHz+32%
L3 Cache	0 kB	32 MB (total)
L2 Cache	6 MB (total)	512K (per core)+8433%
Process	45 nm	7 nm-84%
Architecture	Yorkfield (2007−2009)	Vermeer (2020−2025)
PassMark	2,160	21,550+898%
Cinebench R23 Multi	—	11,077
Geekbench 6 Single	—	2,052
Geekbench 6 Multi	—	8,600

🧠

Memory & Platform

The Core 2 Quad Q9400 uses the LGA775 socket (PCIe 1.1), while the Ryzen 5 5600 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Core 2 Quad Q9400 versus DDR4-3200 on the Ryzen 5 5600 — the Ryzen 5 5600 supports 200.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 5600 supports up to 128 GB of RAM compared to 8 GB — 1500% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Core 2 Quad Q9400) vs 24 (Ryzen 5 5600) — the Ryzen 5 5600 offers 24 more lanes for additional GPUs or NVMe drives.

Feature	Core 2 Quad Q9400	Ryzen 5 5600
Socket	LGA775	AM4
PCIe Generation	PCIe 1.1	PCIe 4.0+264%
Max RAM Speed	DDR3-1066	DDR4-3200+200%
Max RAM Capacity	8 GB	128 GB+1500%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	0	24

🔧

Advanced Features

Only the Ryzen 5 5600 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x (Core 2 Quad Q9400) vs AMD-V (Ryzen 5 5600). Primary use case: Core 2 Quad Q9400 targets Desktop, Ryzen 5 5600 targets Desktop.

Feature	Core 2 Quad Q9400	Ryzen 5 5600
Integrated GPU	No	No
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x	AMD-V
Target Use	Desktop	Desktop

💰

Value Analysis

At launch, the Core 2 Quad Q9400 was priced at $229, while the Ryzen 5 5600 came in at $199. On launch pricing ($229 vs $199), Ryzen 5 5600 was $30 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Quad Q9400 delivers 9.4 pts/$ vs 108.3 pts/$ for the Ryzen 5 5600 — making the Ryzen 5 5600 the 168% better value option.

Feature	Core 2 Quad Q9400	Ryzen 5 5600
MSRP	$229	$199-13%
Performance per Dollar	9.4	108.3+1052%
Release Date	2008	2022

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