Athlon II X4 630 vs Core 2 Quad Q9400

Athlon II X4 630 vs Core 2 Quad Q9400 Performance Spectrum

Athlon II X4 630

4 / 4

2,175

+0.7%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Quad Q9400

4 / 4

2,160

0.0%

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.

Athlon II X4 630 vs Core 2 Quad Q9400 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.

Athlon II X4 630 vs Core 2 Quad Q9400: Pros, Cons & Final Verdict

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

Athlon II X4 630

2009

Why buy it

✅Costs $100 less on MSRP ($129 MSRP vs $229 MSRP).
✅Delivers 78.8% more PassMark for each dollar spent, at 16.9 vs 9.4 PassMark/$ ($129 MSRP vs $229 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core 2 Quad Q9400.

Trade-offs

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

Core 2 Quad Q9400

2008

Why buy it

Trade-offs

❌Lower PassMark (2,160 vs 2,175).
❌Lower PassMark per dollar, at 9.4 vs 16.9 PassMark/$ ($229 MSRP vs $129 MSRP).
❌No boxed cooler included, unlike Athlon II X4 630.

Quick Answers

So, is Athlon II X4 630 better than Core 2 Quad Q9400?

Yes. Athlon II X4 630 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 49 shared CPU game tests in our data, 0.7% 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, Athlon II X4 630 is the better pick. According to our tests, it delivers 0.2% more average FPS across 49 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Athlon II X4 630 is the stronger fit. You are getting 0.7% better PassMark, backed by 4 cores and 4 threads.

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

Athlon II X4 630 is the better buy right now. Athlon II X4 630 comes in $100 cheaper on MSRP at $129 MSRP versus $229 MSRP, and it still gives you a 0.2% average FPS lead across 49 shared CPU game tests in our data. It is also 78.8% better value on MSRP (16.9 vs 9.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Athlon II X4 630 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2008) and more multi-core headroom with 4 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.

Athlon II X4 630 vs Core 2 Quad Q9400 Technical Specifications

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

Athlon II X4 630

The Athlon II X4 630 is manufactured by AMD. It was released in 16 September 2009 (16 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,175 points. Launch price was $63.

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.

⚡

Processing Power

Both the Athlon II X4 630 and Core 2 Quad Q9400 share an identical 4-core/4-thread configuration. Boost clocks reach 2.8 GHz on the Athlon II X4 630 versus 2.67 GHz on the Core 2 Quad Q9400 — a 4.8% clock advantage for the Athlon II X4 630 (base: 2.8 GHz vs 2.66 GHz). The Athlon II X4 630 uses the Propus (2009−2011) architecture (45 nm), while the Core 2 Quad Q9400 uses Yorkfield (2007−2009) (45 nm). In PassMark, the Athlon II X4 630 scores 2,175 against the Core 2 Quad Q9400's 2,160 — a 0.7% lead for the Athlon II X4 630. Both processors carry 0 kB of L3 cache.

Feature	Athlon II X4 630	Core 2 Quad Q9400
Cores / Threads	4 / 4	4 / 4
Boost Clock	2.8 GHz+5%	2.67 GHz
Base Clock	2.8 GHz+5%	2.66 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	6 MB (total)+1100%
Process	45 nm	45 nm
Architecture	Propus (2009−2011)	Yorkfield (2007−2009)
PassMark	2,175	2,160

🧠

Memory & Platform

The Athlon II X4 630 uses the AM3 socket (PCIe 2.0), while the Core 2 Quad Q9400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X4 630 versus DDR3-1066 on the Core 2 Quad Q9400 — the Athlon II X4 630 supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon II X4 630 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 (Athlon II X4 630) vs 0 (Core 2 Quad Q9400) — the Athlon II X4 630 offers 16 more lanes for additional GPUs or NVMe drives.

Feature	Athlon II X4 630	Core 2 Quad Q9400
Socket	AM3	LGA775
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-1333+25%	DDR3-1066
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

🔧

Advanced Features

Only the Athlon II X4 630 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (Athlon II X4 630) vs VT-x (Core 2 Quad Q9400). Primary use case: Core 2 Quad Q9400 targets Desktop.

Feature	Athlon II X4 630	Core 2 Quad Q9400
Integrated GPU	No	No
Unlocked	Yes	No
AVX-512	No	No
Virtualization	AMD-V	VT-x
Target Use	—	Desktop

💰

Value Analysis

At launch, the Athlon II X4 630 was priced at $129, while the Core 2 Quad Q9400 came in at $229. On launch pricing ($129 vs $229), Athlon II X4 630 was $100 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X4 630 delivers 16.9 pts/$ vs 9.4 pts/$ for the Core 2 Quad Q9400 — making the Athlon II X4 630 the 56.5% better value option.

Feature	Athlon II X4 630	Core 2 Quad Q9400
MSRP	$129-44%	$229
Performance per Dollar	16.9+80%	9.4
Release Date	2009	2008

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